"expiration" news and stories

Sell by, best by, and use by are all labels that we commonly see on foods in the grocery store. They are on just about anything that is packaged, from milk and bagged produce to cookies and soda. Is there really a difference between the terms, and if so, what is it?

BusinessWeek actually has some of the answers for us. A "sell by" date is one that indicates to a store how long the product should be offered for sale, although such a product will almost always be good for at least a few days beyond that date. A "best by" date means that the flavor or texture of a food will begin to decline at that point. The "use by" date is the real expiration date. Beyond it, there is no guarantee that the food will be fresh and tasty or that it will retain all of the nutrients that it started out with. The overall quality of the product can begin to decrease and you're probably better of just starting again with a fresh bottle/can/bag.

The best strategy is to buy foods in small batches so you don't have to worry about expiration dates of any sort coming on too quickly, but keep the dates in mind as you shop for reference points, and choose products with further dates if you know you're not going to be consuming everything you buy in a short period of time.

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A 19-year old South Carolina man died as a result of eating a batch of pancakes from an expired mix. It wasn't exactly the pancakes that killed him, though. He seems to have had an allergic reaction to a mold that grew in the mix.

As unfortunate as this story is, it can illustrate a valuable point to everyone about checking expiration dates, especially on things that have a long shelf life. While the ingredients, which in the case of pancake mixes consist primarily of flour, can last for a long time in a cool, dry place, unwanted things can develop over time. Sometimes a product can smell or look "off, though a potential problem may not be obvious to the naked eye. "Unseen molds can trigger both minor and severe allergic reactions, so it is best to throw out an old mix than to risk anaphylactic shock - especially if you are prone to allergies.

 Update: Link is now fixed

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Over time, some of the dry goods in the pantry will expire, from Bisquick to canned cranberry jelly. Most of these things will still be safe to eat in the weeks immediately following their “best by” date, but it is best to try and use them up before reaching that point. Spring cleaning is a great time to sort through all those cans and mixes and figure out what to do with them. Soups and chili recipes are a good start for most pantry favorites.

Another prevalent pantry item is chocolate chips. The Tollhouse recipe is a classic and one of the best, most reliable recipes there is, so keeping a bag or two of chocolate morsels on hand is common. All of these chips have a “best by” date on them, after which point they will still be usable, but their flavor will begin to decrease. I happen to have a lot of seasonal chips around – red and green white chocolate chips for Christmas and red and pink white chocolate chips for Valentine’s day – in addition to the specialty Milk Chocolate and Caramel Swirl Chips pictured above. Just use them in place of the regular chips in the Tollhouse recipe, or one of the other recipe on the back of the bags. It sounds obvious to say it here, but would we ever have leftover chips if we just disregarded the holiday that they are “supposed” to be for and used them whenever we wanted a batch of cookies?