If you learnt anything from old ppl, just eat around the mold

Food Poisoning ? No problem as Mold = Penicillin - It's a fun cycle !

It actually doesn’t look that bad for 50yr old potato’s lol, it was the better one of the few others that completely turned black and dried up

Mmmm. Tasty ! or should I say 'crunchy'
On a related point, when did you last go through your cupboards checking 'sell by' dates and what other delicious treats do you have there ? ;~)