Black tea is a popular type of tea around the world.

- It is a fully oxidized tea, more than any other kind of tea.
- The leaves are exposed to moist, oxygen-rich air. The oxidation process turns the leaves from green to a dark brownish-black color and makes this tea stronger in flavor than other teas.
- All teas are made of leaves from the Camellia sinensis. The Camellia sinensis sinensis is a small-leaved plant native to China and is commonly used for green and white teas. The Camellia sinensis assamica is a larger-leaved plant typically used for black and oolong teas.

In China, black tea is called â??red teaâ?? due to the reddish color of the infusion.