This article needs additional citations for verification .(April 2009) |
Crush, tear, curl (sometimes cut, tear, curl) is a method of processing tea leaves into black tea in which the leaves are passed through a series of cylindrical rollers with hundreds of sharp teeth that crush, tear, and curl the tea into small, hard pellets. This replaces the final stage of orthodox tea manufacture, in which the leaves are rolled into strips. Tea produced using this method is generally called CTC tea or mamri tea.
The first CTC machine was brought into service in 1930 at the Amgoorie Tea Garden in Assam under the supervision of Sir William McKercher. [1] [2] It proliferated over three decades starting in 1950, most rapidly in India and Africa.
Today, most black teas produced use the CTC method or the closely related Rotorvane orthodox manufacture. CTC and Rotorvane orthodox have a finished product that is well suited for tea bags, as the product quickly gives a dark brew.
For many large tea producers, 80% to 90% of the factory's production is of small, broken, primary grades suitable for tea bag blends; the remaining 10% to 20% are secondary grades which trade at a discount to the primary grades. The convenience, low price, strong liquor, generic flavor, and mild bitterness all have contributed to the near-monopoly that CTC-type teas now enjoy in South Asia.
In the Indian domestic market, this type of manufacture is by far the most popular – over 80% of tea production is of the CTC type. In the export market, particularly in the CIS, the Middle East, United Kingdom and Ireland, CTC teas continue to be the most highly in demand.
CTC teas generally produce a rich red-brown colour when they are boiled by the Indian method. The drawback of the CTC method is that it tends by its nature, and unfortunately by adulteration, to homogenize all black tea flavors. In the process of crushing, tearing and pelletising the tea leaves, pressures and stresses occur which break down the cells, releasing large amounts of the phytins that normally oxidise to produce black tea's mahogany colour. Since, regardless of origin, CTC teas in their dry form are generically "tea-like" in aroma, and of similar pelletized appearance, it is easy to adulterate a more expensive CTC-type tea with inexpensive and generally mild lowland teas of the same process. Different types of orthodox-processed whole and broken leaf teas, by contrast, look quite different from each other, making them more difficult to adulterate.
Oolong 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.
Tea is an aromatic beverage prepared by pouring hot or boiling water over cured or fresh leaves of Camellia sinensis, an evergreen shrub native to East Asia which probably originated in the borderlands of southwestern China and northern Myanmar. Tea is also made, but rarely, from the leaves of Camellia taliensis. After plain water, tea is the most widely consumed drink in the world. There are many different types of tea; some have a cooling, slightly bitter, and astringent flavour, while others have profiles that include sweet, nutty, floral, or grassy notes. Tea has a stimulating effect in humans, primarily due to its caffeine content.
Pu'er or pu-erh 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, and is typically applied after the tea leaves have been sufficiently dried and rolled. 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, for which it is not.
In the tea industry, tea leaf grading is the process of evaluating products based on the quality and condition of the tea leaves themselves.
Camellia sinensis is a species of evergreen shrub or small tree in the flowering plant family Theaceae. Its leaves, leaf buds, and stems can be used to produce tea. Common names include tea plant, tea shrub, and tea tree.
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). Assam's people tried to plant the Chinese varieties in Assam soil but 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.
Nilgiri tea is a drink made by infusing leaves of Camellia sinensis that is grown and processed in the Nilgiris district in Tamil Nadu, India. The leaves are processed as black tea, though some estates have expanded their product offerings to include leaves suitable for making green, white and oolong teas. It is generally described as being a brisk, fragrant and full-bodied tea. The region produces both rolled and crush, tear, curl tea and it is predominantly used for blending. Nilgiri tea is also used for making iced tea and instant tea.
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.
Nepali tea is a beverage made from the leaves of tea plants grown in Nepal. They are distinctive in appearance, aroma and taste, but are similar in many ways to tea produced in Darjeeling, perhaps because the eastern zones of Nepal have geography and topography similar to Darjeeling. Its relatively smaller production quantities mean that teas from Nepal are less well known than those from Darjeeling.
Darjeeling tea is a tea made from Camellia sinensis var. sinensis that is grown and processed in Darjeeling district or Kalimpong district in West Bengal, India. Since 2004, the term Darjeeling tea has been a registered geographical indication referring to products produced on certain estates within Darjeeling and Kalimpong. The tea leaves are processed as black tea, though some estates have expanded their product offerings to include leaves suitable for making green, white, and oolong teas.
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.
Irish breakfast tea is a blend of several black teas, most often a combination of Assam teas and Ceylon teas. Irish tea brands, notably Barry's, Bewley's, Lyons and Robert Roberts in the Republic and Nambarrie's and Thompson's Punjana in Northern Ireland are heavily weighted towards Assam. It is one of the most popular blended teas, common in tea culture in Ireland. When tea was first transported from China to Ireland in the mid-18th century, it was mainly introduced to the wealthy as a result of its high cost and low demand. However, throughout the mid-19th century, Irish breakfast tea became readily available to those of both lower and higher socioeconomic classes.
Tea processing is the method in which the leaves from the tea plant Camellia sinensis are transformed into the dried leaves for brewing tea.
India is one of the largest tea producers in the world, although over 70 per cent of its tea is consumed within India itself. A number of renowned teas, such as Assam and Darjeeling, also grow exclusively in India. The Indian tea industry has grown to own many global tea brands and has evolved into one of the most technologically equipped tea industries in the world. Tea production, certification, exportation and all facets of the tea trade in India are controlled by the Tea Board of India. From its legendary origins to modern processing techniques, tea production in India delicately weaves together cultural heritage, economic prowess, and technological advancement.
India is the second largest producer of tea in the world after China, including the famous Assam tea and Darjeeling tea. Tea is the 'State Drink' of Assam. Following this the former Planning Commission Deputy Chairman, Montek Singh Ahluwalia had plans to officially recognise tea as the Indian "National Drink" in 2013. According to the ASSOCHAM report released in December 2011, India is the world's largest consumer of tea, consuming nearly 30% of global output. India is also the second-largest exporter of tea, after China.
Sencha is a type of Japanese ryokucha which is prepared by infusing the processed whole tea leaves in hot water. This is as opposed to matcha, powdered Japanese green tea, where the green tea powder is mixed with hot water and therefore the leaf itself is included in the beverage. Sencha is the most popular tea in Japan.
Tea is a major cash crop that is grown in Kenya. Kenyan tea has been the leading major foreign exchange earner for the country.
Kenya Tea Development Agency Holdings (KTDA) is a Kenyan company that provides comprehensive services to more than 600,000 small tea farmers such as agri-extension, transportation, processing, and marketing.
Black tea is a type of tea that is more oxidized than oolong, yellow, white, and green teas. Black tea is generally stronger in flavour than other teas. All five types are made from leaves of the shrub Camellia sinensis, though Camellia taliensis is also rarely used.
Goodricke Group Limited is an India-based tea producing company headquartered in West Bengal. It is a part of the Camellia PLC UK – the world's largest private sector tea producer. The four tea producing companies in its fold include Goodricke Group Limited, Stewart Holl (India) Limited, Amgoorie India Limited and Koomber Tea Co. Pvt. Limited. The Group owns 30 gardens and 27 tea factories spread over Darjeeling, Dooars, Assam and Cachar. In recent years the Goodricke Group acquired in Assam two estates of the McLeod company being in economic difficulties. The major Darjeeling brands include Goodricke Castleton, Roasted and Margaret's Hope, while the Black (CTC) tea includes Goodricke Khaass, Goodricke Zabardast and Goodricke Chai.