Something I'm curious about. With an increasing number of airlines requiring passengers to wear masks, how are the airlines encouraging good mask hygiene during meal/snack service?

My concern is that when anyone touches their mask to remove it, their hands are contaminated. Their hands get further contaminated if they bring food up to the mouth. If the mask is just placed on their tray, the tray is contaminated.

Do the flight attendants pass out a new mask each time they distribute food or drinks? What about a bag for each passenger to temporarily store their mask? Hand sanitizer?

Much of this would also apply to restaurants and shops in the airports themselves. Outside of air travel, it would also apply whenever anyone is eating food outside.