你有問題，我有答案! Always !
EXPIRATION or USE BY date: This is the most important term. It is the biggy! "Use by" and Exp. or Expiration are interchangeable terms. But they mean just that. The product is only good until this date. If you haven't used it by the said date, toss it.
"SELL BY" or "PULL BY" date: This term is designed for retailers not consumers. The term is a signal for them to pull the product, but generally, there is still time left to consume it. "Sell by" on milk for example, generally means milk will be good for at least one week after the date.
"BEST BY": The key word here is "best." The food should remain good after said date, but beyond it, something in the product like flavor or consistency will deteriorate.
There is also a term called "GUARANTEED FRESH," that you might find on baked goods. If your product wears one of these, yet fails to be fresh, you're advised to return it back to the store. Especially if you find it stale or growing mold.
It is important to note that the FDA only requires infant formula and poultry packaged at the farm to wear an expiration or "use by" label. In addition, beyond all of this terminology, food safety is also determined by how the product is handled; by you, grocers, and packers as well. Perishable products must be kept at 34 degrees at the store. On your end, 40 degrees or lower keeps food fresh. Anything higher shortens the shelf life.
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又露出狐疑的表情 
) , 真的啦~~~如果表達得不夠清楚, 那我修正為: 這讓「生性非常節儉」的我非常痛苦.
你都怎麼處理過期的食品?
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