Do all teas improve with age?

Do all teas improve with age?
Tea Hong

With the exception of green teas and green style oolongs, most properly processed oolongs, white teas, pu’ers and black teas do mature well — i.e. improve with age. That is true only upon the needed conditions of handling and storage. Depending on the selection, the quality of such teas also peak at a certain age. Some a couple of years, others quite a number of years more.