Two Meng Hai factory Shu-Pu-Erh cakes ... different recipes and outer wrappers; the 7452 vintage 2010 and 7572 from 2019

What does 7572 stand for?

7572 is a code that stands for a recipe/blend for a pu erh tea. The first two numbers ’75’ refers to the year a recipe was first introduced. 

The third number ‘7’ stands for the type of leaves used. This can range from 0-9 depending on the size of the leaves. In this case it’s 7, meaning that relatively large leaves are used. 

Finally, the last digit stands for the factory where the cake is made. In this case number ‘2’ stands for the Menghai tea factory. See below the full list of factories:

• #1: Kunming Tea Factory
• #2: Menghai Tea Factory
• #3: Xiaguan Tea Factory
• #4: Puer Tea Factory