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 ==== Amount of caffeine in tea ====
-Caffeine constitutes about 3 percent of tea's dry weight. This translates to between 30 and 90 milligrams per 250-milliliter cup depending on the type of tea, brand and method of brewing. The caffeine content of one gram of black tea ranges from 22 milligrams to 28 milligrams and the caffeine content of one gram of green tea ranges from 11 milligrams to 20 milligrams.  [([[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3459493|National Institute of Health]])]
+Caffeine constitutes about 3 percent of tea's dry weight. This translates to between 30 and 90 milligrams per 250-milliliter cup depending on the type of tea, brand, and method of brewing. The caffeine content of one gram of black tea ranges from 22 milligrams to 28 milligrams and the caffeine content of one gram of green tea ranges from 11 milligrams to 20 milligrams.  [([[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3459493|National Institute of Health]])]
 ==== Types of tea ====
-Tea is divided into categories based on how it is processed. The three main categories include green tea, which is unwilted and unoxidized; white tea, which is wilted and unoxidized and black tea, which is wilted, sometimes crushed, and fully oxidized.  [([[https://www.artfultea.com/tea-wisdom-1/types-of-tea-a-comprehensive-guidea|Artful Tea]])]
+Tea is divided into categories based on how it is processed. The three main categories include green tea, which is unwilted and unoxidized; white tea, which is wilted and unoxidized and black tea, which is wilted, sometimes crushed and fully oxidized.  [([[https://www.artfultea.com/tea-wisdom-1/types-of-tea-a-comprehensive-guidea|Artful Tea]])]
+==== Brits drink a lot of tea ====
+The Brits drink 165 million cups of tea a day. That's a staggering 60.2 billion a year.[([[https://www.powteainyourface.com/post/11-facts-about-tea|Tea In Your Face]])]
+==== Camellia Sinensis ====
+All teas come from the same plant. Black, green, white, and Pu-erh all come from Camellia Sinensis, a subtropical evergreen plant native to Asia but now grown around the world. [([[https://www.thepinkteabox.com/blogs/tea-times/what-is-tea|The Pink Teabox]])]
+==== Shen Nung ====
+Tea was first discovered in China by Shen Nung in 2737 BC, who used it as an antidote to poisonous herbs.
+[([[https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/shennong|Science Direct]])]
+==== Rooibos ====
+Rooibos is an herbal tea made from a plant that grows in South Africa. Its leaves look like needles and are fermented like regular tea leaves. [([[https://www.scienceworld.ca/stories/ever-wonder-about-rooibos/|Science World]])]
+==== Storage ====
+Tea absorbs moisture, so it is important to store tea bags in an airtight container. [([[https://teacultureoftheworld.com/Make-The-Most-Of-Loose-Leaf-Teas-With-Proper-Storage|Tea Culture of the World]])]
+==== Infusion not tea ====
+Mint tea is not a tea - it is an infusion. All teas classified as tea must come from the leaves of the Camellia Sinensis plant. Everything else, like herbs (like mint), fruits (like raspberry), and so on, is an infusion. [([[https://www.goodandpropertea.com/blogs/all/why-herbal-tea-isnt-really-a-tea|Good and Proper Tea]])]
+==== Tea bags ====
+Tea bags were invented in the United States in 1904. [([[https://time.com/3996712/a-brief-history-of-the-tea-bag/|Time]])]
+==== Oxidation ====
+Black tea undergoes the longest oxidation process. White tea has the shortest oxidation process. [([[https://www.artfultea.com/tea-wisdom-1/2017/7/7/tea-oxidation|Artful Tea]])]
+==== Black tea process ====
+Black teas are made from leaves that are fermented and then heated to remove moisture. The heat changes the color of the leaves to black. [([[https://talcottlab.tamu.edu/wp-content/uploads/sites/108/2019/03/Review-Black-Tea.pdf|Talcott Lab]])]
+==== Adding milk ====
+The practice of mixing milk with tea has to do with social class, not taste. Low-quality china cups would break when hot tea was poured into them, so pouring milk in first meant that the cups would remain intact. [([[https://www.theguardian.com/notesandqueries/query/0,,-1400,00.html|Guardian]])]
+==== Iced tea ====
+% of the tea consumed in the United States is iced tea. [([[https://www.npr.org/sections/thesalt/2015/06/09/412984583/as-american-as-iced-tea-a-brief-sometimes-boozy-history?t=1646730931654|NPR]])]
+==== Lipton ====
+Lipton is the world's best-selling tea brand. [([[https://www.teacurry.com/blogs/industry-and-world-news/most-selling-tea-brands-in-the-world|Tea Curry]])]
+==== Second-most consumed beverage ====
+After water, tea is the most consumed beverage on Earth. [([[https://www.teausa.com/teausa/images/Tea_Fact_Sheet_2019_-_2020._PCI_update_3.12.2020.pdf|Tea Association]])]
 {{tag>food culture history science}}

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