Black tea’s flavor profile ranges from brisk and astringent to smooth and malty, with aromatic notes like floral, fruity, spicy, smoky, or honeyed depending on origin and processing. Theaflavins impart briskness and brightness; thearubigins contribute body and color.
Leaves are exposed to air in a temperature-controlled environment. During this stage, catechins convert into theaflavins and thearubigins , which create the tea's dark color and robust taste. black tea
Excessive intake can cause sleep disturbance, increased heart rate, or gastrointestinal discomfort due to caffeine and tannins. Interactions with certain medications and effects on iron absorption are considerations for some individuals. As with most dietary factors, moderation is prudent. The Complete Guide to Black Tea