You have to choose precious and high-quality tea (the packaging does not need to be gorgeous), such as fresh green tea, Longjing tea, Maojian tea and so on. Or Wuyi Rock Tea, Dahongpao, Tieguanyin, etc. I suggest that it is more meaningful to send a piece of Pu 'er tea cake with the meaning of "long life without borders" to the teacher.

How to choose tea:

1, see the uniformity. Good quality tea has the same size and length.

2. Look at the clarity. The purity of tea refers to the amount of impurities contained in tea. Authentic tea leaves are generally not allowed to contain any impurities, and secondary tea leaves cannot contain non-tea impurities.

3. Look at the color. Green tea is good in quality when it is green and shiny, with more white, but poor in yellow or brown.

4. Look at the cable. Tight and heavy quality is good, thick and loose, thin and broken quality is poor.