When you're shopping at the supermarket, it's important to know what different expiration dates actually mean on food packaging. Something that's marked with a "sell by" date is actually for retailers to know when food won't be at its peak freshness; it doesn't mean the food is bad or unsafe to eat. A "best by" date is an estimate of the latest date when you can enjoy the food at its best quality; you still have time after that date to safely consume unopened goods. A "use by" date notes when whatever you're buying will have passed the point of being safe to eat.
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