West Side Tea, referred to as West Side Tea for short, is a side-selling tea produced in guanxian and Beichuan, Sichuan Province, and packed in contempt bags. Rectangular bags made in guanxian are called square tea bags; round bags made in Beichuan are called round tea bags. Now round teabags have been discontinued and processed according to the specifications of square teabags.

The raw materials of western tea are rougher and older than those of southern tea. It is the thickest and oldest tea with a tree age of 1-2 years. In most producing areas, the system of both coarse tea and fine tea is implemented. Generally, spring tea is picked once, and then the tea is cut. Some cut side tea once a year, which is called "single season knife". Edge tea has high yield and good quality, but the output of fine tea is low. Some cut side tea once every two years, which is called "double season knife". Thick tea and thin tea are suitable, but the quality of side tea is low. Some cut side tea every few years, which is called "multi-season knife". Tea branches are coarse and old, and the quality is poor, which can not meet the requirements of production and sales.

The primary processing technology of Xifang tea is simple. Branches cut by x 1i can be directly dried in the sun, which can be used as ingredients for making square tea, and the stem content is about 60%.