How to prevent food from going bad in hotel lobby bar

Think about the clothes cover on the chair in the hot pot restaurant (the cover that the waiter takes off for the customer); Think about high-end places again. The service staff carefully put away their coats for customers.

As far as the floor where the canteen is located is concerned, at that time, I always felt that the smoke smell of the canteen on the second floor was bigger than that on the first and third floors (the highest floor), probably because the ventilation on the second floor was not good. Half an hour before dinner is the cooking time with heavy kitchen fumes. Let the smoke dissipate for a while.