But the time needed for this natural fermentation is great. Most tea dealers can't set aside their purchased inventories for decades. Customers likewise want to drink the tea soon after they've bought it. The techniques of "ripening cakes" and "wet storage" were created to induce an artificially aged flavor and mellow the tea so it doesn't eat at the stomach and damage the health.
但後醱酵需時長久，一般茶行不可能把買來的茶閒置在那裡，買茶的客戶也希望買了就能喝，因此又有「熟餅」、「濕倉」等作法，一來催化「人工陳味」，二來讓茶性轉為溫和，不會刮胃傷身。