I don't know what kind of catering business your store is engaged in. Usually, our drinks are free, all of which are carbonated drinks (Sprite cola and the like) and beer, while other high-grade liquor and foreign wine are inevitable. The specific operation method is as follows:

1) No cups are placed on the table. When the guests arrive, they should put cups on their heads to ensure that each person has only one cup (if the guests need to change cups, they should take away the used cups while bringing new ones). Drinks are for guests to help themselves.

2) Introduce a Coca-Cola or Pepsi-Cola beverage machine, which can greatly reduce the cost of beverages. Remember to choose carbonated drinks, because guests can't drink much like this.

3) beer and drinks should be placed in a special area. Both drinks and beer can only be poured into cups and taken away. Beer can't be taken away with bottles. If you can, you'd better have someone pour the beer.

that's about it. In fact, a lot of consumption is not on the guests, but on the employees ... Hehe, it is also a hole of loss and waste. I suggest that you should pay attention to internal management and reduce consumption besides controlling customers.