In addition, this process also increases the natural caffeine content found in tea, resulting in 40 to 70 mg of caffeine per 8-ounce cup. Sometimes referred to as fermentation, oxidation creates a bold malty, smoky, or fruity flavor depending on the intended tea type. The oxidation process consists of a series of chemical reactions that brown the tea leaf, which affect the tea’s taste, aroma, and chemical compounds. Similar to green tea, black tea grows from theĬamilla Sinensis plant however, the oxidation process that it undergoes after being harvested differentiates it from other varietals. This popular type of tea is known for its strong, robust flavor that can shine through lots of sweeteners, creams, and other ingredients. When western cultures talk about tea, they are often referring to black teas, such as sweet iced tea, English breakfast tea, or Earl Grey tea. It is known for its sweet, well-rounded flavor that is often described as “reminiscent of freshly roasted white corn.”īlack tea is a varietal of tea that is made from oxidized leaves of theĬamilla Sinensis plant. Longjing, directly translated to “Dragon Well”, is another popular green tea in China. The high content of chlorophyll and amino acids as a result of shade growing, give Matcha its unique rich vegetal taste, followed by a lingering sweetness. Matcha is a Japanese green tea that is stone-ground into a fine powder and whisked in hot water instead of steeped. Due to its powerful fragrance, this type is the most famous scented tea in China. Jasmine tea is scented with the aroma of Jasmine blossoms resulting in a subtly sweet and highly fragrant tea. Sencha is described to have a light grassy and earthy flavor. This tea type is known for its refreshing and uplifting essence. Sencha is the mo st popular type of green tea produced and consumed in Japan. The four most popular types of green tea are Sencha, Matcha, Jasmine, and Longjing (or “Dragon Well”). Notably, China and Japan dominate the market in the production of green tea. Over time, green tea has drastically grown in popularity. One popular legend suggests that Shennong, the Emperor of China and supposed inventor of Chinese medicine, discovered tea around 2700 BC when a fresh tea leaf from a nearby tree fell into his cup of boiled water. Origins of Green TeaĪmong all teas, green tea originated in China. Compared to black tea, green tea has less caffeine with about 20 to 40 mg of caffeine per 8-ounce cup. When the tea leaves are ready for harvest, it is minimally oxidized to keep its fresh-picked, bright green color and light, vegetal flavor. Processing of Green TeaĬamilla Sinensis plant. This type of tea is most commonly consumed in China and Japan, as a daily source of antioxidants during meals. When eastern cultures talk about tea, they are generally referring to green teas, such as Matcha green tea, Sencha green tea, or Jasmine green tea. Green tea is a varietal of tea that is made from unoxidized leaves of theĬamilla Sinensis plant. Join us as we take a closer look at the two most popular tea varietals: green tea and black tea. While it is true that all tea comes from the same plant, this does not necessarily mean that all tea is fundamentally the same. So as a general rule, Green Tea has less caffeine than Black Tea but can vary depending on which brand/type chosen.Did you know that tea is the most widely consumed drink in the world? Packed with tons of health benefits, this beverage has always been a delicious staple with staying power. Research in 2020 found that green tea caffeine was in the range of 11.3–24.67 mg/g.īlack Tea had 22-28 mg per 1 gram dried matter. Another study compared the content of dry matter from tea leaves and found Green Tea had 10-20 mg per 1 gram dried matter. Green Tea BrandĪs you can see from the above data, green tea caffeine can vary greatly among brands and the type of green tea used. This table shows the amount of caffeine in an 8 fl oz cup of tea (using 2 grams of tea leaves). The Journal of Food Science evaluated different brands of green tea and had extremely varied results using the same amount of tea leaves brewed for 3 minutes. The length of brewing time is a major factor - the longer the brew - the higher the caffeine. Like other drinks from cultivated plants (tea, coffee), there are numerous variables that can alter caffeine content. The amount of caffeine in green tea varies between blends, but is typically between 11-25 mg in a cup (assuming around 2 grams of tea brewed).
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