Thanks to the combination of caffeine and L-theanine (an amino acid), black tea provides a "calm alertness" rather than the jittery spike you might get from an espresso.
"Black tea is a fully oxidized tea variety known for its robust flavor and dark, reddish-brown hue. Unlike green or white teas, black tea leaves undergo a complete oxidation process, which develops their characteristic malty, earthy, or floral notes. It serves as the base for popular blends like Earl Grey, English Breakfast, and Masala Chai, and remains the most consumed type of tea in the Western world." black tea
Fully oxidized, which darkens the leaves and creates deep, robust flavors. Flavor Profile Thanks to the combination of caffeine and L-theanine
Black tea comes in a variety of flavors and styles, depending on the region in which it is produced. Some of the most popular types of black tea include: It serves as the base for popular blends
: Black tea typically has higher caffeine content than green tea, providing a smoother alertness due to the presence of L-theanine.
This oxidation process turns the leaves dark brown or black and develops the complex, rich tannins that give black tea its characteristic bold flavor and astringency. Finally, the leaves are fired (dried) to halt oxidation and lock in the flavor.