This can not be used if you are going to sell your honey. If you are going to eat it all yourself then you can decide if you are happy for your food to be in close contact with a rusty tin.
I do not look inside my hives after I have finished autumn feeding I just lift each side of each hive to to get an estimate of the amount of stores in them.
I think that if we leave them alone in winter that they have a better chance than if we meddle with them. After all they ( bees that...