Generally speaking, the shelf life of different foods is not the same, generally easy to corrupt or oxidize the food shelf life requirements will be higher, such as meat, cooking oil, eggs and other food shelf life, once the odor, deterioration, corruption and other phenomena do not eat.

It is worth noting that the shelf life is not equal to the shelf life, the shelf life is the best consumption period of the food, while the preservation period is the final consumption period of the food.

We will find that some food even if the shelf life is up, but the food will not spoil, just miss the best time to eat it, not necessarily can not eat. But it's different if it's shelf life, if it's past the shelf life, then it's not edible.

Thus, consumers should recognize what is written on the package is "shelf life" or "shelf life".

3, expired food on the health hazards

I believe that some people should have eaten some expired food, eaten is fine. So you may think that expired food, as long as it is not spoiled then you can eat.

In fact, after the expiration date of the food, it is easy to produce a large number of bacteria and germs, if you eat the expired food, may make some people appear gastrointestinal symptoms, serious cases may lead to food poisoning, these are not good for health.

For example, some spoiled meat food may be contaminated with Clostridium botulinum, which is capable of releasing more intense toxicity, and will harm the human nervous system and muscular motor system, which can lead to respiratory paralysis, and in serious cases may lead to food.

And peanuts, nuts, soybean such food spoilage, then will breed aflatoxin, and aflatoxin will produce aflatoxin, which is a great damage to the liver of the first-class carcinogens.

So, expired food can not eat as much as possible, and once the food spoiled, we must not eat.