When do you think tea was produced in Zhang Yiyuan?

Look at the seal of the bag or the bottom of the jar.

According to the survey data of enterprises, the production date of Zhang Yiyuan tea is generally marked on the sealing part of the packaging bag or the bottom of the can, so it can be seen on the sealing part of the packaging bag or the bottom of the can.

Zhang Yiyuan tea industry, 1989 was born in beijing beijing city, and it is a brand of catering >: beverage > tea, which is managed by Beijing Zhang Yiyuan Tea Co., Ltd. ..