One of the rarest types of teas, Yellow teas are produced from carefully picked buds and leaves that are minimally processed. The leaves are piled or wrapped in small parcels where the internal heat generated from their decomposition, slowly stops the oxidation process. Virtually self-processed, the leaves also skip the first pan-firing step. Yellow teas have more caffeine than green teas and can yield light colored infusions and delicate tastes and aromas. Some Yellow teas are thought to be especially beneficial to the health.