For example:
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When you open a fresh jar of peanut butter do you only work through one side until it is completely empty then start on the other side?
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Or when you get those shallow tubs of hummus does it have to make it back home undisturbed? Then one of the baggers at the grocery store shoves it sideways into the bag completely ruining the symmetry.
That’s fine. As long as you clean it properly before eating it.
I would also claim exception for uncooked food, specifically food that needs to be cooked before it is consumed, if it hits the floor prior to cooking, as long as it’s properly cleaned and cooked, it should be fine… I’m thinking more along the line of meats and things here. If cooking only involves a short bath in boiling water, then no… 10+ minutes in 300+ F temps, sure.
Exception to the exception: if any debris is on the food which cannot be easily removed.