You could skip the daily tests and stick to normal food preparation hygiene. If food is packaged in standard foil take away containers, it just needs to be heat

You could skip the daily tests and stick to normal food preparation hygiene. If food is packaged in standard foil take away containers, it just needs to be heated well enough for long enough to kill the virus (70 deg C, not sure of time). Or cook the food in the container. No salad sorry.