Lynn, one of my jobs in college was in a supermarket, in the deli. A big job we had every night at closing was to clean the slicers. (Where, inevitably, someone would come by in the midst of cleaning and want something sliced!

) The whole thing has to be carefully taken apart and the blades soaked and washed, and the rest hand cleaned. (Yuck, I can still smell it!) It wouldn’t be possible to do that every time they slice something. Not sure there’s really a need, either, since normally there aren’t germs that shouldn’t be in the meats. (It doesn’t hurt, though, to at least maybe wipe the scraps away from time to time, which I bet most places probably do.)
The other thing I think about cleaning today is, I’m not sure everyone knows how to do it right, and I don’t trust that they wouldn’t actually be
adding germs if they tried to wipe slicers down with, say, dirty rags. I remember once where DH worked they got pinged by either the FDA or DPH for having rags by the sink - they’d tested them, and sure enough, they tested positive for - wait for it - listeria!

That was a long time ago, but it’s also why rags shouldn’t be laying around in food places and why they most often use disposable paper towels to clean - or should.
I think I’ve told this story before but one day in the supermarket I was in the ladies room when the janitor was in there cleaning. I watched him clean the toilet bowl with the brush - then take the brush over to the faucets and start to clean them with it after cleaning the bowl!

I was in college at the time and had taken my medical microbiology class and nearly passed out! I went to the manager and told them that guy was putting us all at risk and he needed to be re-taught how to clean. Never from dirty to clean, and never using toilet brushes on sinks! I still get grossed out in public bathrooms and am very careful in there if I have to use them!
So I don’t trust a lot of places when I go in there, whether it’s shopping or using the bathroom or getting a sandwich, etc. I always thought it was gross at Subway with the workers touching everything around the kitchen and then putting lettuce on sandwiches with the same glove. Ugh. I love Moe’s but watching them in there I have concerns there, too, lol. Especially when there is no kill step. (Heat.)
We have experienced a food borne illness and it was life changing.