The noodle restaurant is a producer and seller of hot food, but the on-site sale of homemade sorbet ice powder does not belong to the business scope. Law enforcement officers have reason to issue a rectification notice on the spot and dispose of their homemade drinks off the shelf.

Selling sorbet ice powder requires not only a business license, but also a food hygiene license and personal health certificate. If there is no fixed place, mobile vendors do not need to apply for licenses.