There are three main categories of tea and many varieties within these categories. Black tea is the most popular among all cultures. The dried leaves are black and when brewed, turns the tea a deep amber color and gives it a rich malty flavor. For Asian cultures such as Chinese and Japanese, green tea is very popular. Although it comes from the same plant as the black tea leaves, these tea leaves don't ferment and retain their natural green color.
Green tea is milder, has a light green color, and a more constrictive taste.
But green tea is very high in caffeine. The last category is not made by tea leaves, but rather by blending flower petals, roots, tree barks, berries, fruit peels, seeds and grass, giving it the name Herbal Infusions. Although it might sound awkward, it has been known to enhance health and well-being in many cultures. Also as an added bonus, it is completely caffeine-free. There are innumerable benefits to drinking tea and using it in recipes.