(1) See whether the restaurant has a certificate of legal operation, such as a valid Food Hygiene License. If the restaurant operates without a license, then the sanitary condition is not guaranteed and the interests of the consumer are not ensured, and

(2) do not choose a restaurant where the consumer flow increases greatly during the festival period, compared to ordinary times. The concentrated supply amount may cause an overload for the processing capacity of the restaurant and this may result in food hygiene and safety problems.