If you're like me, then buying a new box of cracker or a new bag of sealed chips is not your first option, even if it's expired. Instead, you may just eat it and risk getting sick. So I am looking for an easy way to determine if a foodstuff that is expired without risking getting food poisoning is still okay to eat. For the sake of it, I'm only asking about food that is unopened until the point of determining if you can still eat it.
The best way to check if food is spoiled is to use your sight and smell. The first thing you will notice about spoiled food would be the off smell. If you can't smell anything strange or unusual then check for foreign colours and objects on the food.
The second way to check is by your gut feeling. If you think the food is off then it probably is !