Theaflavin

Autumn has arrived, and winter is not far behind. With the coolness of autumn mornings and evenings, it's time to consider enjoying a cup of black tea, which can warm your body better than anything else. For those who love and wish to learn more about black tea, these seven questions should prove quite helpful. 01. Does the saying "high mountains produce good tea amidst clouds and mist" apply to black tea as well? Yes, it does. Tea plants prefer diffused light and are best grown under the shade of larger trees or amid clouds and mist, where sunlight is sparse and less intense. Under such conditions, tea plants find it easier to synthesize theanine. Tea plants grown at high altitudes tend to have richer theanine content, resulting in a fresher and more refreshing flavor. 02. What causes the sweetness when drinking black tea? The sweetness in black tea comes from the presence of sugars and amino acids. During fermentation, very complex chemical reactions occur centered around the enzymatic oxidation of polyphenols. The chemical composition of fresh tea leaves changes significantly, with over 90% of polyphenols reduced and new components like theaflavins and thearubigins produced. The aroma compounds increase markedly.…

Tea enthusiasts often keep a substantial amount of tea at home. Some may even store their tea in the fridge, or purchase a small fridge specifically for this purpose.However, this is a common misconception. Whether tea should be stored in the fridge depends on the type of tea. Here are some general guidelines for storing tea in the fridge: 1. Suitable for Refrigeration Green tea and lightly oxidized Oolong tea. Among the six major types of tea, green tea is the most prone to spoilage and requires extra care during storage. You can place the tea in a sealed tea tin, put it in a sealed bag, and then store it in the fridge. Lightly oxidized Tieguanyin (Iron Goddess) and Phoenix Dancong tea that has been dehumidified can also be stored in the fridge. 2. Not Suitable for Refrigeration Dark tea, Pu'er tea, traditionally processed Oolong tea, aged teas, and white tea. Pu'er tea, white tea, and dark tea emphasize the value derived from aging. Storing these teas in the fridge not only risks dampness but also reduces the activity of biological enzymes within the tea, which affects the tea's transformation efficiency. Traditionally processed Oolong teas, such as Wuyi Rock…

Those who love tea often keep a good stock at home, and many people store their teas in the refrigerator, or even buy a small fridge specifically for this purpose. In fact, this is a misconception. Whether tea should be stored in the fridge depends on the type of tea. Teas Suitable for Refrigeration:The types that benefit from refrigeration include green teas, lightly fragrant oolongs, and humidity-dried teas. Of the six major categories, green teas are the most prone to spoilage and require special attention when storing. You can place the tea in a sealed tin and then put it in a sealed bag before placing it in the fridge.Additionally, lightly fragrant Tieguanyin oolong and humidity-dried oolongs can also be stored in the fridge.Green teas, lightly fragrant oolongs, and humidity-dried teas are suitable for refrigeration. Teas Not Suitable for Refrigeration:Black teas, Pu'er teas, traditionally processed Tieguanyin, aged Tieguanyin, and white teas should not be refrigerated due to the importance of aging and transformation. Storing these teas in the fridge could lead to dampness issues and reduce the activity of biological enzymes within the leaves, affecting their transformation process. Jasmine-scented teas may lose their fragrance if stored in the fridge. However,…

Tea lovers often keep a large amount of tea at home. Many people store their tea in the refrigerator, and some even purchase a small fridge specifically for this purpose. However, this is a misconception – whether or not to place tea in the refrigerator should be considered on a case-by-case basis. 1. Teas Suitable for Refrigeration Green tea, lightly fragrant Oolong tea, and dehumidified tea. Among the six major types of tea, green tea is the most prone to spoilage and requires extra attention during storage. You can place the tea in a sealed tea canister, then put it inside a sealed bag before refrigerating it. Lightly fragrant Tieguanyin and dehumidified Oolong, which have gained popularity, can also be stored in the refrigerator. Green tea, lightly fragrant Oolong tea, and dehumidified tea are suitable for refrigeration. 2. Teas Unsuitable for Refrigeration Dark tea, aged Tieguanyin, Pu'er tea, and white tea are not suitable for refrigeration due to their need for post-production transformation, especially Pu'er tea, where aging significantly affects its drinking value. Storing these teas in the refrigerator can lead to moisture issues. Additionally, in the low-temperature environment of the fridge, the activity of biological enzymes within the tea…

Black tea is the second largest category of teas in China and the most widely sold type of tea worldwide. The origin of black tea can be traced back to China, where it was first produced over 400 years ago during the Ming Dynasty by tea farmers in Wuyi Mountain, Fujian Province, as Zheng Shan Xiao Zhong. In terms of processing techniques, due to differences in rolling methods and fresh leaf varieties, black tea can be classified into: Gongfu Black Tea, Xiao Zhong Black Tea, and Broken Black Tea. Xiao Zhong Black Tea is the oldest type of black tea, originally produced in Wuyi Mountain, and is also the progenitor of other black teas; Gongfu Black Tea comes in many varieties, produced in different regions, such as Qimen Gongfu Black Tea mainly produced in Qimen County, Anhui Province, and Dian Hong Gongfu from Yunnan Province; Broken Black Tea is produced across a wide range of areas and is primarily for export. Although there are different classifications of black tea, the basic process generally includes "withering, rolling, fermentation, and drying." As a fully fermented tea, the core and soul of black tea is its "fermentation," which is a critical step in…