选购包装食品的原则应坚持营养大于口感。但是对于大多数的人来说,仍然是以广告噱头以及口感来选购食品。一般而’言,选购袋装食品必须看标签,但是标签上的内容太多了,为了把握最核心的内容,一定要记住“两短”。保质期越短越好保质期指可以保证产品出厂时具备的应有品质,在保质期内可以保证食用的安全性,过期后品质有所下降,虽然可能还可以吃,但是食用的安全性已经不能保证。在买包装食品的时候一定要看好食品的保质期,避免买到过期的食品,危害身体健康。但是每种食品的保质期是不一样的,即便是同一种 The principle of buying packaged food should insist on nutrition than taste. But for most people, the food is still gazing at the gags and the taste. Generally speaking, buy bags of food must look at the label, but the label is too much content, in order to grasp the core content, we must remember “two short ”. The shorter the shelf life, the better the shelf life of the product that can guarantee the quality of the products available in the shelf life of food safety can be guaranteed after the expiration of a decline in quality, although may also eat, but the safety of food can not be guaranteed. When buying packaged food must be optimistic about the shelf life of food, to avoid buying expired food, endangering their health. However, the shelf life of each food is not the same, even if the same