First of all, raw tea refers to Puerh tea that has not undergone fermentation during processing and production. The taste and color of raw tea is comparable to green tea, and it is usually steamed and pressed at high temperatures into various shapes, such as cakes, bricks, and golden melons. The fundamental difference between green tea and Pu-erh tea is that Pu-erh tea continues to ferment during storage, gradually becoming ripe Pu-erh tea; whereas green tea has to be drunk new, and when it is old, it is not good to drink, and the nutrients are gradually disappearing. After the storage of raw tea, usually according to the years of storage on the said years of raw tea or old tea.
Now ripe tea usually refers to the production of Puerh tea after the use of artificial ovo-pile fermentation, according to the production process and the degree of fermentation, there are seven ripe, nine ripe, etc., the taste is naturally different, it is in addition to tightly pressed and shaped, there are also loose tea.