Herbal tea, that is, the traditional Chinese medicine treatment of tea, is a health-preserving method of pulverizing traditional Chinese medicine into coarse powder or cutting it into small filaments, brewing it in boiling water or slightly frying it in water, and taking it like tea to achieve the purpose of eliminating pathogenic factors, treating diseases and protecting health. Medicinal tea is a special liquid beverage with certain curative effect made by adding food or medicine to tea leaves. Medicinal tea in a broad sense also includes tea substitute products, such as soup, fresh fruit juice, lotion, emulsion and so on. It contains no tea leaves and is made of food and medicine through brewing, decocting, squeezing and distillation.