Food expiration dates: What do they really mean?

Food expiration dates: What do they really mean?

Are you one of those people who pour the milk down the drain on the expiration date?

Expiration dates on food products can protect consumer health, but those dates are really more about quality than safety, and if not properly understood, they can also encourage consumers to discard food that is perfectly safe to eat.

A recent poll of more than 2,000 adults showed that most of us discard food we believe is unsafe to eat, which is a good thing, of course, but it is important that we understand what food expiration dates mean before we dump our food -- and our money -- down the drain or into the garbage.

Which five foods are most often feared as being unsafe after the printed date? According to ShelfLifeAdvice.com, we are most wary of milk, cottage cheese, mayonnaise, yogurt, and eggs, and the site offers these helpful explanations:

Milk: If properly refrigerated, milk will remain safe, nutritious, and tasty for about a week after the sell-by date and will probably be safe to drink longer than that, though there’s a decline in nutritional value and taste.
Cottage cheese: Pasteurized cottage cheese lasts for 10-14 days after the date on the carton.
Mayonnaise: Unopened, refrigerated Kraft mayonnaise can be kept for 30 days after its expiration date or 3-4 months after opening, the company told ShelfLifeAdvice.
Yogurt: Yogurt will remain good 7-10 days after its sell-by date.
Eggs: Properly refrigerated eggs should last at least 3-5 weeks after the sell-by date,


The “Use-By” Date

The “use-by” or “best if used-by” date indicates the last day that the item is at its best quality as far as taste, texture, appearance, odor, and nutritional value. The decline after that is gradual. The use-by date refers to product that has not yet been opened.



The “Sell By” Date

The “sell by” date is not really a matter of food safety, but a notice to stores that the product should be taken off the shelf because it will begin to decline in quality after that date.

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