Would these potatoes be safe
Had them in container all day for about 15 hours would be safe eat them
if they are uncooked and still raw..sure..potatoes will last over a week..generally..but is best to take them out of the bag so they can air out and not rot..if already cooked..i'd toss them after that long..but your question doesn't say which..
Not if they're cooked. Potatoes are cheap, medical care is expensive. Even if you're 99.9% sure, it's a bad bet.
If they smell bad toss um
Yeah if uncooked there fine, when you cook them they will reach over 135 degrees killing any possible bacteria growth. As long as the potatoes aren't green, or black your good, remove all black and green spots.