No no. The idea is that before, you had plates and bowls sitting on top of a tray. All had to be washed and disinfected. Now you don't have the tray, the stu

No no. The idea is that before, you had plates and bowls sitting on top of a tray. All had to be washed and disinfected. Now you don't have the tray, the students carry their plates in their hand directly. No tray to wash.