Legal analysis: To open a teahouse, you need to have a formal business certificate and food license, and then you need to have certain financial ability, including early decoration, equipment purchase, tea purchase, personnel salary, property expenditure, etc., and then you need to have good management and operation ability, as well as profit and cost control, and you need to have good communication and the ability to maintain customer relations.

legal basis: food safety law of the people's Republic of China

article 35 the state practices a licensing system for food production and operation. Engaged in food production, food sales, catering services, shall obtain a license according to law. However, sales of edible agricultural products and sales only in prepackaged foods do not require permission. Only selling prepackaged foods shall be reported to the food safety supervision and administration department of the local people's government at or above the county level for the record.

article 41 the production of food-related products shall comply with laws, regulations and national food safety standards. For food-related products with high risks, such as packaging materials that come into direct contact with food, the production license shall be implemented in accordance with the provisions of the state on the administration of production licenses for industrial products. The food safety supervision and management department shall strengthen the supervision and management of the production activities of food-related products.