It’s hard to answer that without seeing it.
But you can rely on your own judgment.
If the machine is clean between uses, meaning the meat from the previous sandwich does not stick around, then it is fine. Usually there are just some tiny crumbs from the bread. That would be ok.
If there are pieces from previous sandwiches still hanging around, chances are you are getting food from many other sandwiches. For health reasons alone I would keep away.
In most cases it would be fine. Avoid dirty stores.
It’s hard to answer that without seeing it.
But you can rely on your own judgment.
If the machine is clean between uses, meaning the meat from the previous sandwich does not stick around, then it is fine. Usually there are just some tiny crumbs from the bread. That would be ok.
If there are pieces from previous sandwiches still hanging around, chances are you are getting food from many other sandwiches. For health reasons alone I would keep away.
In most cases it would be fine. Avoid dirty stores.