Green, black and white teas are all made from the leaves of the Camellia sinensis plant. The way tea leaves are handled after they are picked determines the type of tea they become.
Green tea is gently steamed or pan-fired right after picking to preserve its bright green color and fresh taste.
White tea is made from very young tea leaves and buds that are minimally processed after picking. Black tea is allowed to oxidize slightly before being dried to bring out a richer flavor.
Herbal teas contain no Camellia sinensis leaves at all. Their flavor comes from a combination of herbs, spices, botanicals and natural flavors. Since they contain no tea leaves, herbal teas are naturally caffeine free.