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.
Green tea is a type of tea that is made from Camellia sinensis leaves and buds that have not undergone the same withering and oxidation process which is used to make oolong teas and black teas. Green tea originated in China, and since then its production and manufacture has spread to other countries in East Asia.
White tea may refer to one of several styles of tea which generally feature young or minimally processed leaves of the Camellia sinensis plant.
In the tea industry, tea leaf grading is the process of evaluating products based on the quality and condition of the tea leaves themselves.
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.
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.
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.
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.
Camellia sinensis, the source of tea leaves and buds, can be grown in much of the United States. Commercial cultivation has been tried at various times and locations since the 1700s, but tea has remained a niche crop and has never been cultivated widely in the US. As of 2020, the US mainland has one relatively large plantation with full mechanization in Charleston, South Carolina, and many small commercial tea gardens that pick tea by hand. Some growers feel that tea production is not economically viable without some mechanization, but there is evidence that unmechanized tea production is viable, albeit with lower net profit margins. Most domestically grown teas are available through mail order and online purchases.
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.
Matcha (抹茶) is a finely ground powder of specially grown and processed green tea leaves that originated in China. Later, the green color exhibited in most modern matcha was developed in Japan, where most matcha is produced today. In the 12th century at the latest, Chinese compressed tea, the raw material for matcha, was introduced to Japan. When the production of compressed tea was banned in China in 1391, matcha was abandoned in China but continued to develop in Japan thereafter.
The Temi Tea Garden in Temi, established in 1969 by the Government of Sikkim, is located in Namchi in the northeastern Indian state of Sikkim. It is the only tea garden in Sikkim and is considered one of the best in India and the world. Top quality tea is produced, which is in demand in the international market. The garden is laid over a gradually sloping hill. The tea produced in this garden is also partly marketed under the trade name "Temi Tea".
Coffee production in Tanzania is a significant aspect of its economy as it is Tanzania's largest export crop. Tanzanian coffee production averages between 30,000 and 40,000 metric tons annually of which approximately 70% is Arabica and 30% is Robusta.
Congou is a description of a black Chinese tea variety used by 19th-century tea importers in America and Europe. It was the base of the 19th-century English Breakfast tea blend.
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.
Bangladesh is an important tea-producing country. It is the 12th largest tea producer in the world. Its tea industry dates back to British rule, when the East India Company initiated the tea trade in the hills of the Sylhet region. In addition to that, tea cultivation was introduced to Greater Chittagong in 1840. Today, the country has 166 commercial tea estates, including many of the world's largest working plantations. The industry accounts for 3% of global tea production, and employs more than 4 million people.
Sri Lanka has a climate and varied elevation that allows for the production of both Camellia sinensis var. assamica and Camellia sinensis var. sinensis, with the assamica varietal holding the majority of production. Tea production is one of the main sources of foreign exchange for Sri Lanka, and accounts for 2% of GDP, contributing over US$1.3 billion in 2021 to the economy of Sri Lanka. It employs, directly or indirectly, over 1 million people, and in 1995 directly employed 215,338 on tea plantations and estates. In addition, tea planting by smallholders is the source of employment for thousands whilst it is also the main form of livelihood for tens of thousands of families. Sri Lanka is the world's fourth-largest producer of tea. In 1995, it was the world's leading exporter of tea, with 23% of the total world export, and Sri Lanka ranked second on tea export earnings in 2020 after China. The highest production of 340 million kg was recorded in 2013, while the production in 2014 was slightly reduced to 338 million kg. India has additionally guaranteed Sri Lanka a shipment of 65,000 metric tons of urea. Sri Lanka's troubled execution of an organic agriculture initiative had pushed the country perilously close to an agricultural crisis. Given the surge in global fertilizer prices, it is improbable that Sri Lanka could procure fertilizer at prevailing market rates.
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.
