Not every date you see on your food is an expiration date. Here are four common dates you may see in the grocery store and what they really mean, according to Business Insider:
Sell-by date: How long the store has to display the product
Use-by date: When manufacturer thinks the product will be at its peak quality
Best before date: The best date for flavour and quality
Closed by date or coded dates: The packing number that the manufacturer uses
None of these are expiration dates nor do they indicate whether food is safe to eat or not. In fact, the FDA allows manufacturers to sell almost any food past these dates, with baby formula being the exception. What’s more, manufacturers aren’t required to put any of these dates on their food; the decision is totally up to them.
That being said, looks and smells can sometimes be deceiving (taking a whiff of the milk carton is not an exact science), which is why those expiration dates stamped on the packaging can guide you in the right direction and help prevent illness. From creamy cheeses to sandwich staples, it’s best to toss these foods once they’re past their given expiration date unless you want to roll the dice on an extra sick day.