White tea is the least-processed style of tea. Traditionally plucked by hand to avoid damaging the leaves and exposing them to oxygen, white tea is made from the newest buds and leaves of the plant, which have soft, downy, white hairs. Once plucked, the leaves are laid out in the sun to wither, which stops the oxidation process. White tea has the least amount of caffeine and contains high amounts of antioxidant polyphenols and L-theanine amino acids.
Principle methods for processing white tea: Plucking -> Withering -> Roasting