Tea is an important part of Chinese culture, consumed daily to quench thirst and refresh oneself. There are three main types of tea - green, black, and oolong - which are categorized based on their fermentation process. Tea is enjoyed through drinking and tasting, with weaker tea drunk for refreshment and stronger tea tasted for its flavors. Tea sets for tasting typically include a small tray, teapot, and four cups to share tea among four people. Tea is also used as medicine to soothe the body and relax.