Industry insiders roughly divide the nearly century-old history of Pu'er tea into three periods: Hao-grade tea, Yin-grade tea and Qizi cake tea.

1. No. 1 tea - refers to tea products produced by private teahouses from the beginning of the last century to the establishment of "China Yunnan Tea Trading Co., Ltd." in 1938.

The main tea products are: Centenary Tongqing Hao (with Malong and Double Lions), Tribute Tongqing Hao, Fuyuanchang Hao (with purple tickets, red tickets, blue tickets), Song Chenghao (with red tickets) ticket, blue ticket), Sun Xishun, tribute Tongxing number (with thick paper, thin paper), Song Cheng Jingchang number, Jingchang number, Jiangcheng number, Tongchang number Huang Wenxing, Tongchang Huangji (with red ticket, blue ticket), Yangcheng Hao, Puqing Hao, Cheshun Hao, Dingxing Hao (with red tickets and blue tickets), Yiwu Xingshunxiang Hao, Yiwu Yongmaochang, Fulugong, Sipu Gongming, Qunji Yuancha, Mengjing No., Xinxing No., Yunnan No. Hanoi No. and so on.

2. Indian-grade tea - from the establishment of China Tea Company in 1938, when the first batch of red-printed round tea was produced, to 1967, the tea produced during this period was Indian-grade tea.

With the establishment of China Tea Company as the starting point, the transformation from private teahouses to national first-class factories to produce tea is a major change. The scale of production The production methods, product quality and packaging characteristics are all different from the era of Hao-grade tea. It was not until 1967 that the Zhongcha brand round tea was changed to Qizi cake tea, which marked the end of the era of Indian-grade tea.

The main tea products include red-seal round tea, green-seal round tea, paperless red-seal, paperless green-seal, large-character green-seal round tea, small-character green-seal round tea, yellow-seal round tea, round tea discus, etc. According to the information, most of the Indian-grade tea products are manufactured by Menghai Tea Factory.

3. Qizi Cake Tea - In the mid-to-late 1960s, China Tea brand round tea was renamed Yunnan Qizi Cake Tea, and ended with the transformation of major state-owned tea factories in Yunnan at the beginning of this century.

The main tea products include Kunming Simplified Qizi Cake Tea and Xiaguan Zhongcha Simplified Qizi Cake. The first two were produced in conjunction with Indian-grade tea in the early days and used the Zhongcha brand.

In the 1980s, there were: Xiaguanzhong Tea Brand Traditional Chinese Qizi Cake (8653 discus), Yellow Seal Qizi Cake (recipe with yellow seal), Big Blue Seal Qizi Cake, Water Blue Seal Qizi Cake, 7542 -73 green cake, 8582 green cake, red belt Qizi cake, 7532 snow-printed green cake, 7542 and 7582 thick paper and thin paper green cake in the 1980s, 88 green cake, etc.

After the 1990s, in addition to the traditional conventional tea produced in Kunming, Menghai, and Xiaguan, there were also Qizi cakes under the Hong Dayi and Zi Dayi brands in printing and packaging.

In addition, there are also Qizi cake tea produced by large tea factories such as Dadugang and Liming that were built later, and Qizi cake tea ordered by tea merchants from major factories.