1. Red Seal: The word "tea" on the wrapping paper of "Bazhong Tea" is printed in red, and the whole wrapping paper is red, so it is called "red seal". At present, the price of printed tea products is the highest, and the ancient trees and wild tea in Menghai tea area are used to create a strong aroma and taste. There are several kinds of wrapping paper for red printing, but only thin oil paper is used to wrap tea in the late 1950s, and matte cotton paper is repackaged after 1970s, or it is simply late tea.

2. Huang Xi: A kind of Pu 'er tea with the yellow word "tea", called "Huangxiyuan Tea". This kind of yellow-printed round tea is small, which can be divided into "rhubarb seal" and "small yellow seal" according to the size of the cake. Huangyinyuan tea is a kind of Pu 'er tea made by tea factory in order to promote tea products and increase commodity circulation. It is the predecessor of today's Qizi Pu 'er tea cake and is also the "ancestor of modern Pu 'er tea seeds".

3. Printing-grade tea is named after the word "tea" ("Bazhong tea" trademark), and its packaging paper is printed with different colors, including red seal, blue seal and yellow seal. These appellations are not the original names or models of tea products, but many old tea drinkers named them according to the color of the word "tea" printed with "Bazhong tea" in order to distinguish tea products. Indian-grade tea is the product of the times when Pu 'er tea entered the planned economy state-owned tea factory after the trademark of "China Tea Brand" was officially registered.