1. To make the taste and aroma of the tea more equal.
Sencha is called Sencha in a nutshell, but its origin, type, and quality vary widely.
Also, since tea leaves are agricultural products, even the same tea has a different taste and aroma from one tea plantation to another.
These differences in taste and aroma are homogenized through blending.
2. To cover the shortcomings of the tea leaves.
For example, blending three types of tea leaves that look bad, taste bad, and smell bad can help cover the shortcomings of each one.