I’ve run two companies for the past 30 years. I reckon I’ve tried everything to keep the kitchen clean. In the end the only thing that worked was to remove all the plates and cutlery and give everyone a cup with their own name on. (Oh, and a fridge only large enough to hold milk and drinks…no food.) It still meant that I had to clean the bench tops and sink but I didn’t mind leaving the dirty, moldy cups on the sink for the owner to try to disinfect if they wanted a cup of coffee.
Personally, I’m with you… burn the kitchen down.