Pu'er | |
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Type | Fermented tea |
Other names | 普洱茶 |
Origin | Yunnan, China |
Pu'er tea | |||||||||||||||||||||||
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Chinese | 普洱茶 | ||||||||||||||||||||||
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Pu'er or pu-erh [1] is a variety of fermented tea traditionally produced in Yunnan Province,China. In the context of traditional Chinese tea production terminology,fermentation refers to microbial fermentation (called 'wet piling'),and is typically applied after the tea leaves have been sufficiently dried and rolled. [2] As the tea undergoes controlled microbial fermentation,it also continues to oxidize,which is also controlled,until the desired flavors are reached. This process produces tea known as hēichá (黑茶),literally "black tea",though the term is commonly translated to English as "dark tea" to distinguish it from the English-language black tea (紅茶hóngchá,lit. "red tea" in Chinese).
Most teas,although described as fermented,are actually oxidised by enzymes present in the tea plant. Pu'er is fermented microbially by molds,bacteria and yeasts present on the harvested leaves of the tea plant,truly fermented.
There are two main styles of pu'er production:a traditional,longer production process known as shēng (raw) pu'er;and a modern,accelerated production process known as shóu (ripe) pu'er. Pu'er traditionally begins with a raw product called "rough" (máo) chá (毛茶,lit. fuzzy/furry tea) and can be sold in this form or pressed into a number of shapes and sold as "shēng chá (生茶,lit. raw tea). Both of these forms then undergo the complex process of gradual fermentation and maturation with time. The wòduī (渥堆) fermentation process developed in 1973 by the Kunming Tea Factory [3] [4] created a new type of pu'er tea. This process involves an accelerated fermentation into shóu (or shú) chá (熟茶,lit. ripe tea) that is then stored loose or pressed into various shapes. The fermentation process was adopted at the Menghai Tea Factory shortly after and technically developed there. [5] The legitimacy of shóu cháis disputed by some traditionalists when compared to the traditionally longer-aged teas,such as shēng chá.
Pu’er can be stored and permitted to age and to mature,like wine,in non-airtight containers before consumption. This is why it has long been standard practice to label all types of pu’er with the year and region of production.
Pu'er is the pinyin romanization of the Mandarin pronunciation of Chinese 普洱 .Pu-erh is a variant of the Wade-Giles romanization (properly p‘u-êrh) of the same name. In Hong Kong, the same Chinese characters are read as Bo-lei, and this is therefore a common alternative English term for this tea. The tea got its name from the ancient tea-trading town of Pu'er (普洱), which is today's Ning'er Town (宁洱镇) in Ning'er County, Pu'er prefecture-level city of Yunnan. [6] [7] Pu'er County had its name changed to Simao, after Simao Town, the new county seat in 1950 following the Communist victory. The County of Simao became a prefecture level City and had its name changed to Pu'er in 2007. Although the urban center of the modern Pu'er City remained in Simao, the whole Pu'er region is now sometimes considered the appellation for pu'er proper.
Pu'er (and all tea) terminology varies from language to language. For example, pu-er is known in Chinese as a type of 'dark tea' (heicha) while in Spanish it is considered ‘té rojo’ (red tea) and, conversely, what in Chinese is called 'red tea' (hongcha) is known in Spanish as 'té negro' (black tea).
UNESCO World Heritage Site | |
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Location | China |
Criteria | Cultural: iii, v |
Reference | 1665 |
Inscription | 2023 (45th Session) |
Area | 7167.89 ha |
Buffer zone | 11927.85 |
Coordinates | 22°11′02″N100°00′25″E / 22.184°N 100.007°E |
Fermented tea leaves have had a long history among ethnic groups in southwest China. These crude teas were of various origins and were meant to be low cost. [8] The Bulang and Dai people of Yunnan Province have produced pu'er tea at Jingmai Mountain since at least the 10th century. [9] Traditionally, the tea trees would be planted in the forest understory after some larger trees were removed. On the border of these old tea forests, a partition forest would be planted to protect against the spread of pests and diseases, with cultivated land for crops and vegetables at lower altitudes. [9] Darkened tea, or hēichá, is still the major beverage for the ethnic groups in the southwestern borders and, until the early 1990s, was the third major tea category produced by China mainly for this market segment. [6] Because of the cultural significance of pu'er tea, its unique cultivation process, and the unbroken history of growing tea at Jingmai Mountain, it was inscribed on the UNESCO World Heritage List in 2023. [9]
There had been no standardized processing for the darkening of hēichá until the postwar years in the 1950s, when there was a sudden surge in demand in Hong Kong, perhaps because of the concentration of refugees from the mainland. In the 1970s the improved process was taken back to Yunnan for further development, which has resulted in the various production styles variously referred to as wòduī today. [4] [10] This new process produced a finished product in a matter of months that many thought tasted similar to teas aged naturally for 10–15 years and so this period saw a demand-driven boom in the production of hēichá by the artificial ripening method.
In recent decades, demand has come full circle and it has become more common again for hēichá, including pu'er, to be sold as the raw product without the artificial accelerated fermentation process.
This article needs additional citations for verification .(April 2024) |
Pu'er tea processing, although straightforward, is complicated by the fact that the tea itself falls into two distinct categories: the "raw" shēngchá and the "ripe" shóuchá. All types of pu'er tea are created from máochá (毛 茶), a mostly unoxidized green tea processed from Camellia sinensis var. assamica, which is the large leaf type of Chinese tea found in the mountains of southern and western Yunnan (in contrast to the small leaf type of tea used for typical green, oolong, black, and yellow teas found in the other parts of China).
Máochá can be sold directly to market as loose leaf tea, compressed to produce "raw" shēngchá, naturally aged and matured for several years before being compressed to also produce "raw" shēngchá or undergo wòduī ripening for several months prior to being compressed to produce "ripe" shóuchá. While unaged and unprocessed, Máochá pǔ'ěr is similar to green tea. Two subtle differences worth noting are that pǔ'ěr is not produced from the small-leaf Chinese varietal but the broad-leaf varietal mostly found in the southern Chinese provinces and India. The second is that pǔ'ěr leaves are picked as one bud and 3-4 leaves whilst green tea is picked as one bud and 1-2 leaves. This means that older leaves contribute to the qualities of pǔ'ěr tea.
Ripened or aged raw pǔ'ěr has occasionally been mistakenly categorized as a subcategory of black tea due to the dark red color of its leaves and liquor. However, pǔ'ěr in both its ripened and aged forms has undergone secondary oxidization and fermentation caused both by organisms growing in the tea and free-radical oxidation, thus making it a unique type of tea. This divergence in production style not only makes the flavor and texture of pu'er tea different but also results in a rather different chemical makeup of the resulting brewed liquor.
The fermented dark tea, hēichá (黑茶), is one of the six classes of tea in China, and pǔ'ěr is classified as a dark tea (defined as fermented), something which is resented by some who argue for a separate category for pǔ'ěr tea. [11] As of 2008, only the large-leaf variety from Yunnan can be called a pǔ'ěr.
Pu'er is typically made through two steps. First, all leaves must be roughly processed into maocha to stop oxidation. From there it may be further processed by fermentation, or directly packaged. Summarising the steps: [3] : 207
Both sheng and ripe pu'er can be shaped into cakes or bricks and aged with time.
The intent of the máochá stage (青 毛 茶 or 毛 茶; literally, "light green rough tea" or "rough tea" respectively) is to dry the leaves and keep them from spoiling. It involves minimal processing and there is no fermentation involved.
The first step in making raw or ripened pu'er is picking appropriate tender leaves. Plucked leaves are handled gingerly to prevent bruising and unwanted oxidation. It is optional to wilt/wither the leaves after picking and it depends on the tea processor, as drying occurs at various stages of processing. [3] If so, the leaves would be spread out in the sun, weather permitting, or a ventilated space to wilt and remove some of the water content. [12] On overcast or rainy days, the leaves will be wilted by light heating, a slight difference in processing that will affect the quality of the resulting maocha and pu'er.
The leaves are then dry-roasted using a large wok in a process called "killing the green" (殺 青; pinyin: shā qīng), which arrests most enzyme activity in the leaf and prevents full oxidation. [3] : 207 After pan-roasting, the leaves are rolled, rubbed, and shaped into strands through several steps to lightly bruise the tea and then left to dry in the sun. Unlike green tea produced in China which is dried with hot air after the pan-frying stage to completely kill enzyme activity, leaves used in the production of pu'er are not air-dried after pan-roasting, which leaves a small amount of enzymes which contribute a minor amount of oxidation to the leaves during sun-drying. The bruising of the tea is also important in helping this minimal oxidation to occur, and both of these steps are significant in contributing to the unique characteristics of pu'er tea.
Once dry, máochá can be sent directly to the factory to be pressed into raw pu'er, or to undergo further processing to make fermented or ripened pu'er. [3] : 208 Sometimes Mao Cha is sold directly as loose-leaf "raw" Sheng Cha or it can be matured in loose-leaf form, requiring only two to three years due to the faster rate of natural fermentation in an uncompressed state. This tea is then pressed into numerous shapes and sold as a more matured "raw" Sheng Cha.
To produce pu'er, many additional steps are needed prior to the actual pressing of the tea. First, a specific quantity of dry máochá or ripened tea leaves pertaining to the final weight of the bingcha is weighed out. The dry tea is then lightly steamed in perforated cans to soften and make it more tacky. This will allow it to hold together and not crumble during compression. A ticket, called a "nèi fēi" (内 飞) or additional adornments, such as colored ribbons, are placed on or in the midst of the leaves and inverted into a cloth bag or wrapped in cloth. The pouch of tea is gathered inside the cloth bag and wrung into a ball, with the extra cloth tied or coiled around itself. This coil or knot is what produces the dimpled indentation at the reverse side of a tea cake when pressed. Depending on the shape of the pu'er being produced, a cotton bag may or may not be used. For instance, brick or square teas often are not compressed using bags. [13] [ better source needed ]
Pressing can be done by:
Pressed pu'er is removed from the cloth bag and placed on latticed shelves, where they are allowed to air dry, which may take several weeks or months, depending on the wetness of the pressed cakes. [12] The pu'er cakes are then individually wrapped by hand, and packed.
Pu'er is a microbially fermented tea obtained through the action of molds, bacteria and yeasts on the harvested leaves of the tea plant. It is thus truly a fermented tea, whereas teas known in the west as black teas (known in China as Red teas) have only undergone large-scale oxidation through naturally occurring tea plant enzymes. Mislabelling the oxidation process as fermentation and thus naming black teas, such as Assam, Darjeeling or Keemun, as fermented teas has long been a source of confusion. Only tea such as pu'er, that has undergone microbial processing, can correctly be called a fermented tea. [14]
Pu'er undergoes what is known as a solid-state fermentation where water activity is low to negligible. Both endo-oxidation (enzymes derived from the tea-leaves themselves) and exo-oxidation (microbial catalysed) of tea polyphenols occurs. The microbes are also responsible for metabolising the carbohydrates and amino acids present in the tea leaves. [14] [15] [16] Although the microbes responsible have proved highly variable from region to region and even factory to factory, the key organism found and responsible for almost all pu'er fermentation has been identified in numerous studies as Aspergillus niger , with some highlighting the possibility of ochratoxins produced by the metabolism of some strains of A.niger having a potentially harmful effect through consumption of pu'er tea. [17] [18] [19] [20] This notion has recently been refuted through a systematic chromosome analysis of the species attributed to many East Asian fermentations, including those that involve pu'er, where the authors have reclassified the organisms involved as Aspergillus luchuensis . [21] It is apparent that this species does not have the gene sequence for coding ochratoxin and thus pu'er tea should be considered safe for human consumption. [22]
"Ripened" Shu Cha (熟茶) tea is pressed maocha that has been specially processed to imitate aged "raw" Sheng Cha tea. Although it is also known in English as cooked pu'er, the process does not actually employ cooking to imitate the aging process. The term may be due to inaccurate translation, as shóu (熟) means both "fully cooked" and "fully ripened".
The process used to convert máochá into ripened pu'er manipulates conditions to approximate the result of the aging process by prolonged bacterial and fungal fermentation in a warm humid environment under controlled conditions, a technique called Wò Duī (渥 堆, "wet piling" in English), which involves piling, dampening, and turning the tea leaves in a manner much akin to composting. [4] Studies have shown that the soil suitable for planting Pu'er tea trees is slightly acidic soil with loose soil, deep soil layer, good drainage and ventilation. [23]
The piling, wetting, and mixing of the piled máochá ensures even fermentation. The bacterial and fungal cultures found in the fermenting piles were found to vary widely from factory to factory throughout Yunnan, consisting of multiple strains of Aspergillus spp., Penicillium spp., yeasts, and a wide range of other microflora. Control over the multiple variables in the ripening process, particularly humidity and the growth of Aspergillus spp., is key in producing ripened pu'er of high quality. [20] [24] Poor control in fermentation/oxidation process can result in bad ripened pu'er, characterized by badly decomposed leaves and an aroma and texture reminiscent of compost. The ripening process typically takes between 45 and 60 days on average.
The Wò Duī process was first developed in 1973 by Menghai Tea Factory[ failed verification ] and Kunming Tea Factory [4] to imitate the flavor and color of aged raw pu'er, and was an adaptation of wet storage techniques used by merchants to artificially simulate ageing of their teas. Mass production of ripened pu'er began in 1975. It can be consumed without further aging, or it can be stored further to "air out" some of the less savory flavors and aromas acquired during fermentation. The tea is sold both in flattened and loose form. Some tea collectors believe "ripened" Shou Cha should not be aged for more than a decade.
Wet pile fermented pu'er has higher levels of caffeine and much higher levels of gallic acid than traditionally aged raw pu'er; traditionally aged pu'er has higher levels of the antioxidant and carcinogen-trapping[ citation needed ][ dubious – discuss ] epigallocatechin gallate as well as (+)-catechin, (–)-epicatechin, (–)-epigallocatechin, gallocatechin gallate, and epicatechin gallate than wet pile fermented pu'er. Wet pile fermented pu'er has much lower total levels for all catechins than traditional pu'er and other teas except for black tea, which also has low total catechins. [25]
Aside from vintage year, pu'er tea can be classified in a variety of ways: by shape, processing method, region, cultivation, grade, and season.
Pu'er is compressed into a variety of shapes. Other lesser seen forms include: stacked "melon pagodas", pillars, calabashes, yuanbao , and small tea bricks (2–5 cm in width). Pu'er is also compressed into the hollow centers of bamboo stems or packed and bound into a ball inside the peel of various citrus fruits (Xiaoqinggan) or sold as nuggets (Suiyinzi 碎银子 or fossilized tea 茶化石) or bundles made from tea at the center of wet piles (Laotoucha 老头茶).
Image | Common name | Chinese characters | Pinyin | Description | |
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S | T | ||||
![]() | Bing, Beeng, Cake, or Disc | 饼 茶 | 餅 茶 | Bǐngchá | A round, flat, disc or puck-shaped tea, the size ranges from as small as 100 g to as large as 5 kg or more, with 357 g, 400 g, and 500 g being the most common. Depending on the pressing method, the edge of the disk can be rounded or perpendicular. It is also commonly known as Qīzí bǐngchá (七子餅茶, Chi Tsu Ping Cha, Chi Tse Beeng Cha, literally "seven units cake tea") because seven of the bing are packaged together at a time for sale or transport. |
![]() | Tuocha, Bowl, or Nest | 沱 茶 | 沱 茶 | Tuóchá | A convex knob-shaped tea, its size ranges from 3 g to 3 kg or more, with 100 g, 250 g and 500 g being the most common. The name for tuocha is believed to have originated from the round, top-like shape of the pressed tea or from the old tea shipping and trading route of the Tuo River. [26] In ancient times, tuocha cakes may have had holes punched through the center so they could be tied together on a rope for easy transport. |
![]() | Brick | 砖 茶 | 磚 茶 | Zhuānchá | A thick rectangular block of tea, usually in 100 g, 250 g, 500 g and 1000 g sizes; Zhuancha bricks are the traditional shape used for ease of transport along the ancient tea route by horse caravans. |
![]() | Square | 方 茶 | 方 茶 | Fāngchá | A flat square of tea, usually in 100 g or 200 g sizes. Characters are often pressed into the square, as in the example illustrated. |
![]() | Mushroom | 紧 茶 | 緊 茶 | Jǐnchá | Literally meaning "tight tea," the tea is shaped much like a 250 g to 300 g túocha, but with a stem rather than a convex hollow. This makes them quite similar in form to a mushroom. Pu'er tea of this shape is generally produced for Tibetan consumption. |
![]() | Dragon Pearl | 龙 珠 | 龍 珠 | Lóngzhū | A small ball-shaped or rolled tea, convenient for a single serving. Generally balls contain between 5 and 10 grams of compressed material. The practice is also common among Yunnan black tea and scented green teas. |
![]() | Gold Melon | 金 瓜 | 金 瓜 | Jīnguā | Its shape is similar to tuóchá, but larger in size, with a much thicker body decorated with pumpkin-like ribbing. This shape was created for the "Tribute tea"(貢 茶) made expressly for the Qing dynasty emperors from the best tea leaves of Yiwu Mountain. Larger specimens of this shape are sometimes called "human-head tea" (人 頭 茶), due in part to its size and shape, and because in the past it was often presented in court in a similar manner to severed heads of enemies or criminals. |
Pu'er teas are often collectively classified in Western tea markets as post-fermentation, and in Eastern markets as black teas, but there is general confusion due to improper use of the terms "oxidation" and "fermentation". Typically black tea is termed "fully fermented", which is incorrect as the process used to create black tea is oxidation and does not involve microbial activity. Black teas are fully oxidized, green teas are unoxidized, and Oolong teas are partially oxidized to varying degrees.
All pu'er teas undergo some oxidation during sun drying and then become either:
According to the production process, four main types of pu'er are commonly available on the market:
Ripe pu'er is often described by its multiple layers of aroma: duiwei (堆味) or fermented flavour, cangwei (仓味) or storage flavour, xingwei (腥味) or fish flavour and meiwei (霉味) moldy flavour. The storage locations (Yunnan, Canton or Hong Kong) and storing conditions (wet versus dry storage) will result in distinct flavours. The aromas can be annotated as camphora (樟香), ginseng (参香), jujube (枣香), costus (木香), minty (荷香) or very aged (陈香). Raw pu'er is often distinguished by its floral (花香), grassy (草香), fresh (清香), herbal (药香), fruity (水果) or honey (蜜香)aroma.
Some pu'er are flavour-infused. Sticky rice pu'er (nuomixiang, 糯米香) is infused with leaves of Strobilanthes tonkinensis , native to Mengla, which gives it a young rice flavour. Bamboo-roasted pu'er is encased in bamboo tubes and undergoes a smoking process. Tangerine pu'er (xiaoqinggan, 小青柑) is made with small green tangerines stuffed with tea. Flower-infused pu'er is made in the form of tea balls (龙珠) or tea cakes.
Pu'er is produced in almost every county and prefecture in the province. Proper pu'er is sometimes considered to be limited to that produced in Pu'er City.
The best known pu'er areas are the Six Great Tea Mountains (Chinese : 六 大 茶 山 ; pinyin :liù dà chá shān [27] ), a group of mountains in Xishuangbanna, Yunnan, renowned for their climates and environments, which not only provide excellent growing conditions for pu'er, but also produce unique taste profiles (akin to terroir in wine) in the produced pu'er tea. Over the course of history, the designated mountains for the tea mountains have either been changed [28] [ better source needed ] or listed differently. [29] [30] [31]
In the Qing dynasty government records for Pu'er (普洱府志), the oldest historically designated mountains were said to be named after six commemorative items left in the mountains by Zhuge Liang, [30] and using the Chinese characters of the native languages (Hani and Tai) of the region. [32] These mountains are all located northeast of the Lancang River (Mekong) in relatively close proximity to one another. The mountains' names, in the Standard Chinese character pronunciation are:
Southwest of the river there are also nine lesser known tea mountains, which are isolated by the river. [31] They are:
For various reasons, around the end of the Qing dynasty and at the beginning of the ROC period (the early twentieth century), tea production in these mountains dropped drastically, either due to large forest fires, overharvesting, prohibitive imperial taxes, or general neglect. [28] [32] To revitalize tea production in the area, the Chinese government in 1962 selected a new group of six great tea mountains that were named based on the more important tea-producing mountains at the time, including Youle mountain from the original six. [28] [ better source needed ]
Many other areas of Yunnan also produce pu'er tea. Yunnan prefectures that are major producers of pu'er include Lincang, Dehong, Simao, Xishuangbanna, and Wenshan. Other notable tea mountains famous in Yunnan include among others:
Region is only one factor in assessing a pu'er tea, and pu'er from any region of Yunnan can be as prized as any from the Six Great Tea Mountains if it meets other criteria, such as being wild growth, hand-processed tea.
While Yunnan produces the majority of pu'er, other regions of China, including Hunan and Guangdong, have also produced the tea. The Guangyun Gong cake, for example, although the early productions were composed of pure Yunnan máochá, [33] after the ‘60s the cakes featured a blend of Yunnan and Guangdong máochá, and the most recent production of these cakes contains mostly from the latter. [34] [ better source needed ]
In late 2008, the Chinese government approved a standard declaring pu'er tea as a "product with geographical indications", which would restrict the naming of tea as pu'er to tea produced within specific regions of the Yunnan province. The standard has been disputed, particularly by producers from Guangdong. [35] Fermented tea in the pu'er style made outside of Yunnan is often branded as "dark tea" in light of this standard.
In addition to China, border regions touching Yunnan in Vietnam, Laos, and Burma are also known to produce pu'er tea, though little of this makes its way to the Chinese or international markets.
The method of cultivation can have as much of an effect on the final product as region or grade. There are three widely used methods of cultivation for pu'er:
Determining whether or not a tea is wild is a challenging task, made more difficult through the inconsistent and unclear terminology and labeling in Chinese. Terms like yěshēng (野 生; literally "wild" or "uncultivated"), qiáomù (乔 木; literally "tall tree"), yěshēng qiáomù (野 生 乔 木; literally "uncultivated trees"), and gǔshù are found on the labels of cakes of both wild and "wild arbor" variety, and on blended cakes, which contain leaves from tea plants of various cultivations. These inconsistent and often misleading labels can easily confuse uninitiated tea buyers regardless of their grasp of the Chinese language. As well, the lack of specific information about tea leaf sources in the printed wrappers and identifiers that come with the pu'er cake makes identification of the tea a difficult task. Pu'er journals and similar annual guides such as The Profound World of Chi Tse, Pu-erh Yearbook, and Pu-erh Teapot Magazine contain credible sources for leaf information. Tea factories are generally honest about their leaf sources, but someone without access to tea factory or other information is often at the mercy of the middlemen or vendor. Many pu'er aficionados seek out and maintain relationships with vendors who they feel they can trust to help mitigate the issue of finding the "truth" of the leaves.
Even in the best of circumstances, when a journal, factory information, and trustworthy vendor all align to assure a tea's genuinely wild leaf, fakes teas are common and make the issue even more complicated. Because collectors often doubt the reliability of written information, some believe certain physical aspects of the leaf can point to its cultivation. For example, drinkers cite the evidence of a truly wild old tree in a menthol effect ("camphor" in tea specialist terminology) supposedly caused by the Camphor laurel trees that grow amongst wild tea trees in Yunnan's tea forests. As well, the presence of thick veins and sawtooth-edged on the leaves along with camphor flavor elements are taken as signifiers of wild tea.[ citation needed ]
Pu'er can be sorted into ten or more grades. Generally, grades are determined by leaf size and quality, with higher numbered grades meaning older/larger, broken, or less tender leaves. Grading is rarely consistent between factories, and first grade tea leaves may not necessarily produce first grade cakes. Different grades have different flavors; many bricks blend several grades chosen to balance flavors and strength.
Harvest season also plays an important role in the flavor of pu'er. Spring tea is the most highly valued, followed by fall tea, and finally summer tea. Only rarely is pu'er produced in winter months, and often this is what is called "early spring" tea, as harvest and production follows the weather pattern rather than strict monthly guidelines.
Factories are generally responsible for the production of pu'er teas. While some individuals oversee small-scale production of high-quality tea, the majority of tea on the market is compressed by factories or tea groups. Until recently factories were all state-owned and under the supervision of the China National Native Produce & Animal Byproducts Import & Export Corporation (CNNP), Yunnan Tea Branch. Kunming Tea Factory, Menghai Tea Factory, Pu'er Tea Factory and Xiaguan Tea Factory are the most notable of these state-owned factories. While CNNP still operates today, few factories are state-owned, and CNNP contracts out much production to privately owned factories.
Different tea factories have earned good reputations. Menghai Tea Factory and Xiaguan Tea Factory, which date from the 1940s, have enjoyed good reputations, but in the twenty-first century face competition from many of the newly emerging private factories. For example, Haiwan Tea Factory, founded by former Menghai Factory owner Zhou Bing Liang in 1999, has a good reputation, as do Changtai Tea Group, Mengku Tea Company, and other new tea makers formed in the 1990s. However, due to production inconsistencies and variations in manufacturing techniques, the reputation of a tea company or factory can vary depending on the year or the specific cakes produced during a year.
The producing factory is often the first or second item listed when referencing a pu'er cake, the other being the year of production.
Tea factories, particularly formerly government-owned factories, produce many cakes using recipes for tea blends, indicated by a four-digit recipe number. The first two digits of recipe numbers represent the year the recipe was first produced, the third digit represents the grade of leaves used in the recipe, and the last digit represents the factory. The number 7542, for example, would denote a recipe from 1975 using fourth-grade tea leaf made by Menghai Tea Factory (represented by 2).
Tea of all shapes can be made by numbered recipe. Not all recipes are numbered, and not all cakes are made by recipe. The term "recipe," it should be added, does not always indicate consistency, as the quality of some recipes change from year-to-year, as do the contents of the cake. Perhaps only the factories producing the recipes really know what makes them consistent enough to label by these numbers.
Occasionally, a three digit code is attached to the recipe number by hyphenation. The first digit of this code represents the year the cake was produced, and the other two numbers indicate the production number within that year. For instance, the seven digit sequence 8653-602, would indicate the second production in 2006 of factory recipe 8653. Some productions of cakes are valued over others because production numbers can indicate if a tea was produced earlier or later in a season/year. This information allows one to be able to single out tea cakes produced using a better batch of máochá.
Pu'er tea is specially packaged for trade, identification, and storage. These attributes are used by tea drinkers and collectors to determine the authenticity of the pu'er tea.
Pu'er tea cakes, or bǐngchá (饼茶 or 餅茶), are almost always sold with a: [37]
Recently, nèi fēi have become more important in identifying and preventing counterfeits. Menghai Tea Factory in particular has begun microprinting and embossing their tickets in an effort to curb the growth of counterfeit teas found in the marketplace in the late 1990s and early 2000s. Some nèi fēi also include vintage year and are production-specific to help identify the cake and prevent counterfeiting through a surfeit of different brand labels.
Counterfeit pu'er is common. The practices include claiming the tea is older than it actually is, misidentifying the origin of the leaf as Yunnan instead of a non-Yunnan region, labeling terrace tea as forest tea, and selling green tea instead of raw pu'er. The interpretation of the packing of pu'er is usually dependent on the consumer's knowledge and negotiation between the consumer and trader.
When bought in large quantities, pu'er tea is generally sold in stacks, referred to as a tǒng (筒), which are wrapped in bamboo shoot husks, bamboo stem husks, or coarse paper. Some tongs of vintage pu'er will contain a tǒng piào (筒 票), or tong ticket, but it is less common to find them in productions past the year 2000. [12] The number of bǐngchá in a tǒng varies depending on the weight of individual bǐngchá. For instance one tǒng can contain:
Twelve tǒng are referred to as being one jiàn (件), although some producers/factories vary how many tǒng equal one jiàn. A jiàn of tea, which is bound together in a loose bamboo basket, will usually have a large batch ticket (大 票; pinyin: dàpiào) affixed to its side that will indicate information such as the batch number of the tea in a season, the production quantities, tea type, and the factory where it was produced. [12]
Pu'er teas of all varieties, shapes, and cultivation can be aged to improve their flavor, but the tea's physical properties will affect the speed of aging as well as its quality. These properties include:
Just as important as the tea's properties, environmental factors for the tea's storage also affect how quickly and successfully a tea ages. They include:
When preserved as part of a tong, the material of the tong wrapper, whether it is made of bamboo shoot husks, bamboo leaves, or thick paper, can also affect the quality of the aging process. The packaging methods change the environmental factors and may even contribute to the taste of the tea itself.
Age is not the sole factor in determining pu'er quality. Similar to aging wine, the tea reaches a peak with age and can degrade in quality afterwards. Due to the many recipes and different processing methods used in the production of different batches of pu'er, the optimal age for each tea will vary. Some may take 10 years while others 20 or 30+ years. It is important to check the status of ageing for your teacakes to know when they have peaked so that proper care can be given to halt the ageing process.
Over time, raw pu'er acquires an earthy flavor due to slow oxidation and other, possibly microbial processes. However, this oxidation is not analogous to the oxidation that results in green, oolong, or black tea, because the process is not catalyzed by the plant's own enzymes but rather by fungal, bacterial, or autooxidation influences. Pu'er flavors can change dramatically over the course of the aging process, resulting in a brew tasting strongly earthy but clean and smooth, reminiscent of the smell of rich garden soil or an autumn leaf pile, sometimes with roasted or sweet undertones. Because of its ability to age without losing "quality", well aged good pu'er gains value over time in the same way that aged roasted oolong does. [39]
Raw pu'er can undergo "wet storage" (shīcāng, 湿 仓) and "dry storage" (gāncāng 干 仓), with teas that have undergone the latter ageing more slowly, but thought to show more complexity. Dry storage involves keeping the tea in "comfortable" temperature and humidity, thus allowing the tea to age slowly. Wet or "humid" storage refers to the storage of pu'er tea in humid environments, such as those found naturally in Hong Kong, Guangzhou and, to a lesser extent, Taiwan.
The practice of "Pen Shui" 喷 水 involves spraying the tea with water and allowing it dry off in a humid environment. This process speeds up oxidation and microbial conversion, which only loosely mimics the quality of natural dry storage aged pu'er. "Pen Shui" 喷 水 pu'er not only does not acquire the nuances of slow aging, it can also be hazardous to drink because of mold, yeast, and bacteria cultures.[ citation needed ]
Pu'er properly stored in different environments can develop different tastes at different rates due to environmental differences in ambient humidity, temperature, and odors. [12] For instance, similar batches of pu'er stored in the different environments of Yunnan, Guangzhou and Hong Kong are known to age very differently. Because the process of aging pu'er is lengthy, and teas may change owners several times, a batch of pu'er may undergo different aging conditions, even swapping wet and dry storage conditions, which can drastically alter its flavor. Raw pu'er can be ruined by storage at very high temperatures, or exposure to direct contact with sunlight, heavy air flow, liquid water, or unpleasant smells.
Although low to moderate air flow is important for producing a good-quality aged raw pu'er, it is generally agreed by most collectors and connoisseurs that raw pu'er tea cakes older than 30 years should not be further exposed to "open" air since it would result in the loss of flavors or degradation in mouthfeel. The tea should instead be preserved by wrapping or hermetically sealing it in plastic wrapping or ideally glass.
Since the ripening process was developed to imitate aged raw pu'er, many arguments surround the idea of whether aging ripened pu'er is desirable. Mostly, the issue rests on whether aging ripened pu'er will, for better or worse, alter the flavor of the tea.
It is often recommended to age ripened pu'er to air out the unpleasant musty flavors and odors formed due to maocha fermentation. However, some collectors argue that keeping ripened pu'er longer than 10 to 15 years makes little sense, stating that the tea will not develop further and possibly lose its desirable flavors. Others note that their experience has taught them that ripened pu'er indeed does take on nuances through aging, [37] and point to side-by-side taste comparisons of ripened pu'er of different ages. Aging the tea increases its value, but may be unprofitable.
The common misconception is that all types of pu'er tea will improve in taste—and therefore gain in value—as they get older. Many different factors play into what makes a tea ideal for aging and the aging process itself. Further, ripe (shu) pu'er will not evolve as dramatically as raw (sheng) pu'er will over time due to secondary oxidation and fermentation.
As with aging wine, only finely made and properly stored teas will improve and increase in value. Similarly, only a small percentage of teas will improve over a long period of time.
From 2008 Pu'er prices dropped dramatically. Investment-grade Pu'er did not drop as much as the more common varieties. Many producers made large losses, and some decided to leave the industry altogether. [40]
Preparation of pu'er involves first separating a portion of the compressed tea for brewing. This can be done by flaking off pieces of the cake or by steaming the entire cake until it is soft from heat and hydration. [37] A pu'erh knife, which is similar to an oyster knife or a rigid letter opener, is used to pry large horizontal flakes of tea off the cake to minimize leaf breakage. Smaller cakes such as tuocha or mushroom pu'erh are often steamed until they can be rubbed apart and then dried. In both cases, a vertical sampling of the cake should be obtained since the quality of the leaves in a cake usually varies between the surface and the center.
Pu'erh is commonly brewed in the Gongfu style using Yixing teaware or a gaiwan, a Chinese brewing vessel consisting of bowl, lid, and saucer. Optimum water temperatures are generally regarded to be in the range of 85-99 °C depending on the quality and processing of the pu'erh. The leaves are traditionally given one or more "rinses" before the first infusion, involving exposing them to hot water for 2–5 seconds and subsequently discarding the extract produced. This is done to saturate the leaf with water and allow it to decompress, as well as remove any small leaf particles that could adversely affect the outcome of the first infusion. The first infusion is steeped for 12 to 30 seconds, followed by later infusions repeatedly increasing by 2–10 seconds. The prolonged steeping sometimes used in the west can produce dark, bitter, and unpleasant brews. Quality aged pu'erh can yield many more infusions, with different flavor nuances when brewed in the traditional Gongfu method.
Because of the prolonged fermentation in ripened pu'erh and slow oxidization of aged raw pu'erh, these teas often lack the bitter, astringent properties of other teas, and can be brewed much stronger and repeatedly, with some claiming 20 or more infusions of tea from one pot of leaves.[ citation needed ] On the other hand, young raw pu'erh is known and expected to be strong and aromatic, yet very bitter and somewhat astringent when brewed, since these characteristics are believed to produce better aged raw pu'erh.
Quality of the tea can be determined through inspecting the dried leaves, the tea liquor, or the spent tea leaves. The "true" quality of a specific batch of pu'erh can ultimately only be revealed when the tea is brewed and tasted. Although not concrete and sometimes dependent on preference, there are several general indicators of quality:
In Cantonese, the tea is called po-lay (Cantonese Yale :bou2 nei2). It is often drunk during dim sum meals, as it is believed to help with digestion. It is not uncommon to add dried osmanthus flowers, pomelo rinds, or chrysanthemum flowers into brewing pu'er tea in order to add a light, fresh fragrance to the tea liquor. Pu'er with chrysanthemum is the most common pairing, and referred as guk pou or guk bou (菊 普; Cantonese Yale :guk1 pou2; pinyin: jú pǔ).
Sometimes wolfberries are brewed with the tea, plumping in the process.
Various claims have been made regarding health benefits claimed for pu-erh tea. [41] [42] A 2019 study did not report any evidence that consuming pu'er tea promotes loss of body weight in humans. [42]
In the Japanese manga Dragon Ball , the name of the character Pu'ar is a pun on pu'er tea.[ citation needed ]
Oolong (, ; Chinese: 烏龍茶 is a traditional semi-oxidized Chinese tea produced through a process that includes withering the leaves under strong sun and allowing some oxidation to occur before curling and twisting. Most oolong teas, especially those of fine quality, involve unique tea plant cultivars that are exclusively used for particular varieties. The degree of oxidation, which is controlled by the length of time between picking and final drying, can range from 8% to 85% depending on the variety and production style. Oolong is especially popular in southeastern China and among ethnic Chinese in Southeast Asia, as is the Fujian preparation process known as the gongfu tea ceremony.
Salami is a cured sausage consisting of fermented and air-dried meat, typically pork. Historically, salami was popular among southern, eastern, and central European peasants because it can be stored at room temperature for up to 45 days once cut, supplementing a potentially meager or inconsistent supply of fresh meat. Countries and regions across Europe make their own traditional varieties of salami.
Chinese tea culture includes all facets of tea found in Chinese culture throughout history. Physically, it consists of tea cultivation, brewing, serving, consumption, arts, and ceremonial aspects. Tea culture is an integral part of traditional Chinese material culture and spiritual culture. Tea culture emerged in the Tang dynasty, and flourished in the succeeding eras as a major cultural practice and as a major export good.
White tea may refer to one of several styles of tea which generally feature young or minimally processed leaves of the Camellia sinensis plant.
Assam tea is a black tea named after Assam, India, the region of its production. It is manufactured specifically from the plant Camellia sinensis var. assamica (Masters). The Assam tea plant is indigenous to Assam—initial efforts to plant the Chinese varieties in Assam soil did not succeed. Assam tea is now mostly grown at or near sea level and is known for its body, briskness, malty flavour, and strong, bright colour. Assam teas, or blends containing Assam tea, are often sold as "breakfast" teas. For instance, Irish breakfast tea, a maltier and stronger breakfast tea, consists of small-sized Assam tea leaves.
Longjing tea, sometimes called by its literal translated name Dragon Well tea, is a variety of pan-roasted green tea from the area of Longjing Village in Hangzhou, Zhejiang Province, China. It is produced mostly by hand and renowned for its high quality, earning it the China Famous Tea title.
Chinese teas can be classified into six distinctive categories: white, green, yellow, oolong, black and post-fermented. Others add categories for scented and compressed teas. All of these come from varieties of the Camellia sinensis plant. Most Chinese teas are cultivated and consumed in China. It is commonly available in Chinese restaurants and grocery shops worldwide. Green tea is the most common type of tea consumed in China.
Yellow tea can refer to Chinese huángchá and Korean hwangcha.
Gunpowder tea is a form of tea in which each leaf has been individually rolled into a small pellet. Its English name comes either from some resemblance of the pellets to gunpowder, or from a phrase in Chinese that phonetically resembles the word "gunpowder". This rolling method of shaping tea is most often applied either to green tea or to oolong tea.
Pu'er is a prefecture-level city in southern Yunnan Province, China. The urban administrative center of Pu'er is Simao District, which is also the former name of the prefecture-level city itself. A major downturn in the price of tea in 2007 caused severe economic distress in the area. The price of Pu'er has since recovered and Pu'er tea, a type of dark tea, still contributes much to the income of the area.
The Tea Horse Road or Chamadao, now generally referred to as the Ancient Tea Horse Road or Chamagudao was a network of caravan paths winding through the mountains of Sichuan, Yunnan and Tibet in Southwest China. This was also a tea trade route. It is also sometimes referred to as the "Southern Silk Road" or "Southwest Silk Road."
Dianhong tea is a type of relatively high-end, gourmet Chinese red tea sometimes used in various tea blends and grown in Yunnan Province, China. The main difference between Dianhong and other Chinese red teas is the amount of fine leaf buds, or "golden tips," present in the dried tea. Dianhong tea produces a brew that is brassy golden orange in colour with a sweet, gentle aroma and no astringency. Cheaper varieties of Dianhong produce a darker brownish brew that can be very bitter.
Compressed tea, called tea bricks, tea cakes or tea lumps, and tea nuggets according to the shape and size, are blocks of whole or finely ground black tea, green tea, or post-fermented tea leaves that have been packed in molds and pressed into block form. This was the most commonly produced and used form of tea in ancient China prior to the Ming Dynasty. Although tea bricks are less commonly produced in modern times, many post-fermented teas, such as pu-erh, are still commonly found in bricks, discs, and other pressed forms. Tea bricks can be made into beverages like tea or eaten as food, and were also used in the past as a form of currency.
Tea blending is the act of blending different teas to produce a final product that differs in flavor from the original tea used. This occurs chiefly with black tea, which is blended to make most tea bags, but it can also occur with such teas as Pu-erh, where leaves are blended from different regions before being compressed. The most prominent type of tea blending is commercial tea blending, which is used to ensure consistency of a batch on a mass scale so that any variations between different batches and seasons of tea production do not affect the final product. Commercially, it is considered important that any batch of a particular blend must taste the same as the previous batch, so a consumer will not be able to detect a difference in flavor from one purchase to the next.
Gongfu tea or kung fu tea, literally "making tea with skill", is a traditional Chinese tea preparation method sometimes called a "tea ceremony". It is probably based on the tea preparation approaches originating in Fujian and the Chaoshan area of eastern Guangdong. The practice involves using smaller brewing vessels and a higher leaf-to-water ratio than in Western-style brewing. Today, the approach is used popularly by teashops carrying tea of Chinese or Taiwanese origin, and by aficionados and trained masters as a way to fully realize the taste of a tea selection, especially a finer one.
Korean tea is a beverage consisting of boiled water infused with leaves, roots, flowers, fruits, grains, edible mushrooms, or seaweed. It may or may not contain tea leaves.
Fermented tea is a class of tea that has undergone microbial fermentation, from several months to many years. The exposure of the tea leaves to humidity and oxygen during the process also causes endo-oxidation and exo-oxidation. The tea leaves and the liquor made from them become darker with oxidation. Thus, the various kinds of fermented teas produced across China are also referred to as dark tea, not be confused with black tea. The most famous fermented tea is pu'er produced in Yunnan province.
Tea processing is the method in which the leaves from the tea plant Camellia sinensis are transformed into the dried leaves for brewing tea.
Camellia taliensis is a small species of evergreen shrub whose leaves and leaf buds are used to produce tea.