Herbal fermentation stock liquid from the same source of medicine and food is selected, which is composed of siraitia grosvenorii+fatty sea+ganoderma lucidum+honeysuckle, and has a professional inspection report (report name: Qingyanyin); The fermentation broth is light in color and odorless, without changing the original color and taste of the tea drink. It is delicious and healthy, with the taste of milk tea and the efficacy of herbal tea~