Food Cleaning

I went to pick up dinner earlier at Mitsuwa, the Japanese market down the street. Most of the vendors in the food court has displays of their dishes/food items that are made of plastic. I guess they get dirty/dusty over time. A guy was cleaning each plate with a paper towel.





There are four food vendors in all: three Japanese and one Chinese. The Chinese food place has "real" display dishes instead of the plastic ones. I wonder how often they have to replace the display so the food doesn't go bad.