Mini-bar CAN be switched as follows:
8 50ml bottles of spirits, including 2 scotch, 2 gin, 2 vodka and 2 brandy
2 bottles of beer usually Dos Equis
6 cans of soda
2 bottles Perrier
2 small bottles of water
You can switch like for like, i.e. all water for all of it or all water for non-alcoholic beverages
all soda for non-alcoholic beverages
all scotch, or all gin or all brandy for alcoholic beverages