Black tea is one of the most beloved drinks or beverages in the world, and almost 80% of humans consume it. Black tea is the most usual type of tea served without milk. It is made from a tea plant scientifically known as Camellia Sinensis. The level of oxidation gives it the unique colour and flavour, which ranges from amber to dark brown and savoury to sweet. The difference between black, green, and white tea is the way they are processed. During the processing stage, black tea is fermented and oxidized. On the other hand, green tea and white tea are not fermented.