tea可数还是不可数?_百度知道

Examples of additions added at the point of consumption include milk, sugar and lemon. In the production of black teas, halting by heating is carried out simultaneously with drying. Without careful moisture and temperature control during manufacture and packaging, growth of undesired molds and bacteria may make tea unfit for consumption. Caffeine makes up about 3% of tea’s dry weight, which translates to between 30 and 90 milligrams per 250-millilitre (8+1⁄2 US fl oz) cup depending on the type, brand, and brewing method. Tea contains small amounts of theobromine and theophylline, which are xanthines and stimulants, similar to caffeine. Its characteristic colour and powerful flavour come from the fermentation or oxidation process by which it’s produced.

Fruited tea loaf with kea plum compôte

Only the top 25 to 50 millimetres (1 to 2 in) of the mature plant are picked. Assam second flush or “tippy” tea is considered superior to first flush, because of the gold tips that appear on the leaves. In clinical research conducted in the early 21st century, it was found there is no scientific evidence to indicate that consuming tea affects any disease or improves health. Chinese small-leaf-type tea was introduced into India in 1836 by the British in an attempt to break the Chinese monopoly on tea. In 1841, Archibald Campbell brought seeds of Chinese tea from the Kumaun region and experimented with planting tea in Darjeeling.

Bottled and canned tea

{

    {

  • We’ve worked out what makes an afternoon tea a truly memorable (and delicious) experience.
  • |}{

  • Furthermore, it would appear that adding a small amount of milk and sugar to tea appears to make little difference to the levels of l-theanine, but adding high amounts of milk does.
  • |}

  • Caffeine makes up about 3% of tea’s dry weight, which translates to between 30 and 90 milligrams per 250-millilitre (8+1⁄2 US fl oz) cup depending on the type, brand, and brewing method.
  • In 1848, Robert Fortune was sent by the East India Company on a mission to China to bring the tea plant back to Great Britain.
  • {

  • The Classic of Tea, a treatise on tea and its preparations, was written by the 8th century Chinese writer, Lu Yu.
  • |}

  • Tibetans and other Himalayan peoples traditionally drink tea with milk or yak butter and salt.

|}
Polyphenols in tea include flavonoids, epigallocatechin gallate (EGCG), and other catechins. The most important chemicals in tea are the tannins, or polyphenols, which are colourless, bitter-tasting substances that give the drink its astringency. When acted upon by an enzyme called polyphenol oxidase, polyphenols acquire a reddish colour and form the flavouring compounds of the beverage. Certain volatile oils contribute to the aroma of tea, and also contributing to beverage quality are various sugars and amino acids. The first published account of methods of planting, processing, and drinking came in 350 ce.

    {

  • The first record of tea cultivation is dated to this period, during which tea was cultivated on Meng Mountain (蒙山) near Chengdu.
  • |}{

  • Many teas are traditionally drunk with milk in cultures where dairy products are consumed.
  • |}

  • English drinkers preferred to add sugar and milk to black tea, and black tea overtook green tea in popularity in the 1720s.
  • Unlike Southern Yunnan Assam tea, Western Yunnan Assam tea shares many genetic similarities with Indian Assam-type tea (also C. sinensis var. assamica).
  • {

  • If buying flavoured tea, check whether the flavouring is natural or a ‘nature-identical’ synthetic.
  • |}

  • What sets the different types of tea apart is the degree of fermentation they undergo – white tea receives the least, then green, oolong and, finally, black tea.

More tea recipes

Registered nutritionist Kerry Torrens showcases the many health benefits of this popular drink. Turkey, with 2.5 kilograms (5 lb 8 oz) of tea consumed per person per year, is the world’s greatest per capita consumer. Turkish tea is an important part of that country’s cuisine and is the most commonly consumed hot drink, despite the country’s long history with coffee.

  • When acted upon by an enzyme called polyphenol oxidase, polyphenols acquire a reddish colour and form the flavouring compounds of the beverage.
  • {

  • The popular green tea is often served after every meal in the Pashtun belt of Balochistan and in Khyber Pakhtunkhwa.
  • |}

  • The origin of the tea, picking season, and the processing techniques may be intentionally misidentified.
  • {

  • The loose tea is individually measured for use, allowing for flexibility and flavour control at the expense of convenience.
  • |}{

  • Its characteristic colour and powerful flavour come from the fermentation or oxidation process by which it’s produced.
  • |}

  • Without careful moisture and temperature control during manufacture and packaging, growth of undesired molds and bacteria may make tea unfit for consumption.

May support bone health

However, the number of cups that might be considered optimum over a day will vary from person to person and be dependent on the type of tea you choose. Peter Mundy, a traveller and merchant who came across tea in Fujian in 1637, wrote, “chaa – only water with a kind of herb boyled in it”. Tea, however, was not widely consumed in the British Isles until the 18th century and remained expensive until the latter part of that period. English drinkers preferred to add sugar and milk to black tea, and black tea overtook green tea in popularity in the 1720s. Tea smuggling during the 18th century led to the general public being able to afford and consume tea. In Britain and Ireland, tea was initially consumed as a luxury item on special occasions, such as religious festivals, wakes, and domestic work gatherings.

London Calling Afternoon Tea at Haymarket Hotel

What sets the different types of tea apart is the degree of fermentation they undergo – white tea receives the least, then green, oolong and, finally, black tea. In Pakistan, both black and green teas are popular and are known locally as sabz chai and kahwah, respectively. The popular green tea is often served after every meal in the Pashtun belt of Balochistan and in Khyber Pakhtunkhwa. In the northern Pakistani regions of Chitral and Gilgit-Baltistan, a salty, buttered Tibetan-style tea is consumed.
{

Compressed tea

|}
In 1848, Robert Fortune was sent by the East India Company on a mission to China to bring the Tea Spins tea plant back to Great Britain. The Chinese tea plants he brought back were introduced to the Himalayas, though most did not survive. The British had discovered that a different variety of tea was endemic to Assam and the northeast region of India, which was then hybridized with Chinese small-leaf-type tea. Tea was originally consumed only by Anglo-Indians; however, it became widely popular in India in the 1950s because of a successful advertising campaign by the India Tea Board. Many types of Southern Yunnan Assam tea have been hybridized with the closely related species Camellia taliensis. Unlike Southern Yunnan Assam tea, Western Yunnan Assam tea shares many genetic similarities with Indian Assam-type tea (also C. sinensis var. assamica).

Leave a Reply

Your email address will not be published. Required fields are marked *