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Author: Fan Zhihong
Some foods are almost reaching the expiration date, can they still be bought?
Some temporary foods (products nearing the expiry date) on the Internet have great discounts.
Is it worth buying? After I bought the food, it expired in my own home, can I still eat it?
Is it worth buying? After I bought the food, it expired in my own home, can I still eat it?
There have been many discussions on the Internet recently
.
Here to talk about my views
.
.
Here to talk about my views
.
First of all, for qualified pre-packaged food, there is no food safety risk within the shelf life
.
.
The principle is: you can't throw it away just because it is about to expire
.
As long as the state and flavor are normal, you can eat it
.
.
As long as the state and flavor are normal, you can eat it
.
For those foods with a particularly long shelf life, as long as the package is not opened, the quality of the food will not change much compared with the days before the expiration date
.
.
For example, the shelf life of vacuum-packed grain, canned food, soft canned food, biscuits, etc.
is between 1-2 years
.
45 days before the expiration, they entered the impending category
.
Although the content of some vitamins will gradually decrease with the shelf life, for a food with a retention period of up to 365 days, how much difference can the composition be between 50 days before expiration and 30 days before expiration?
is between 1-2 years
.
45 days before the expiration, they entered the impending category
.
Although the content of some vitamins will gradually decrease with the shelf life, for a food with a retention period of up to 365 days, how much difference can the composition be between 50 days before expiration and 30 days before expiration?
So, if you really want to choose this kind of cheapness, it's okay
.
I just have to understand in my heart:
.
I just have to understand in my heart:
Some foods have low nutritional value, such as potato chips, crisp biscuits, candy and sweet drinks, even new ones, they are not worth eating more
.
.
If you deliberately buy because of the discounted price, stock up on a large amount of goods, and eat as much as you want, then I am afraid that it is your own health that will be damaged
.
Second, expired food does not necessarily have a food safety problem, but you need to make your own comprehensive judgment
.
.
Second, expired food does not necessarily have a food safety problem, but you need to make your own comprehensive judgment
.
For long-shelf-life foods, as long as the storage conditions meet the requirements, in most cases, the shelf life is surplus
.
But after all, after the expiration date, the manufacturer has not made quality promises for it.
Whether there is a quality reduction or safety risk, it needs to be judged by itself
.
.
But after all, after the expiration date, the manufacturer has not made quality promises for it.
Whether there is a quality reduction or safety risk, it needs to be judged by itself
.
For example, for vacuum-packed food such as cereals and beans, if the packaging is not damaged, the quality is relatively stable.
After the expiration date, as long as there is no corruption, mold growth, or odor problems, it can be eaten normally
.
After the expiration date, as long as there is no corruption, mold growth, or odor problems, it can be eaten normally
.
Continuously refrigerated yogurt expires for two or three days.
If the flavor and taste are normal, there is usually no problem
.
If the flavor and taste are normal, there is usually no problem
.
But on the other hand, for some long-shelf-life foods whose packaging is not reliable enough, it is better to buy new ones as much as possible
.
For example, if some nut snacks rich in fat are not packaged in vacuum/nitrogen filling, fat oxidation will become more and more serious over time, and the vitamin E content will continue to decline
.
Perhaps before the expiration date, the peroxide value index has already exceeded, and even an unpleasant "hala smell" is produced.
At this time, the acid value may have exceeded the standard and it is not suitable for consumption
.
.
For example, if some nut snacks rich in fat are not packaged in vacuum/nitrogen filling, fat oxidation will become more and more serious over time, and the vitamin E content will continue to decline
.
Perhaps before the expiration date, the peroxide value index has already exceeded, and even an unpleasant "hala smell" is produced.
At this time, the acid value may have exceeded the standard and it is not suitable for consumption
.
Third, for products that require refrigeration or freezing, or foods with a short shelf life, it is best to buy the latest products on the shelves
.
.
For those foods that need to be refrigerated or frozen, expired products really cannot be bought casually
.
This is because once it leaves the cold chain, or the refrigeration or freezing temperature does not meet the requirements, or the ambient temperature is too high, the food will "expire early"
.
.
This is because once it leaves the cold chain, or the refrigeration or freezing temperature does not meet the requirements, or the ambient temperature is too high, the food will "expire early"
.
For example, refrigerated pasteurized milk, if it is not kept in the refrigerator for a few hours at room temperature, it will expire early
.
This is often seen in summer.
Before the expiration date, the product will be layered, sour, and taste wrong
.
Boil it, and it will even flocculate
.
This kind of milk is excessively bacterial.
Do not give it to young children or the elderly.
People with sensitive gastrointestinal tracts and poor resistance should not drink it
.
.
This is often seen in summer.
Before the expiration date, the product will be layered, sour, and taste wrong
.
Boil it, and it will even flocculate
.
This kind of milk is excessively bacterial.
Do not give it to young children or the elderly.
People with sensitive gastrointestinal tracts and poor resistance should not drink it
.
Soy products such as refrigerated tofu also have similar problems
.
The antibacterial ability of soy products is even weaker than that of milk.
Once they leave the cold chain environment or pass the shelf life, the risk of breeding dangerous pathogenic bacteria is greater than that of milk
.
Therefore, it is safest to buy new products
.
.
The antibacterial ability of soy products is even weaker than that of milk.
Once they leave the cold chain environment or pass the shelf life, the risk of breeding dangerous pathogenic bacteria is greater than that of milk
.
Therefore, it is safest to buy new products
.
Fourth, when buying discounted temporary foods, you must consume them in time, or cool them down and store them in time
.
.
If you buy impending food, as long as you can eat it in time, you will not suffer
.
But if it expires in your own home, it will be a bit of a loss
.
.
But if it expires in your own home, it will be a bit of a loss
.
Especially for food with a shelf life of only a few days, it is risky to buy a large amount of pre-period food
.
For example, bread and steamed bread, once the ambient temperature is higher than the range of 20-25 ℃, it is easy to expire in advance, so the merchant will start "buy one get one free" two days before the expiration date
.
At the time, it looked like it was cheap, but if you buy too much, you can't finish eating it in a day or two, and it will taste bad and moldy when you go home.
But there is a real safety hazard, and it is not economically cost-effective
.
.
For example, bread and steamed bread, once the ambient temperature is higher than the range of 20-25 ℃, it is easy to expire in advance, so the merchant will start "buy one get one free" two days before the expiration date
.
At the time, it looked like it was cheap, but if you buy too much, you can't finish eating it in a day or two, and it will taste bad and moldy when you go home.
But there is a real safety hazard, and it is not economically cost-effective
.
So, what should I do if I have bought too much impending food? The remedy is to quickly cool down and store
.
According to the laws of chemistry and biology, the lower the environmental temperature, the slower the speed of adverse chemical reactions, the slower the reproduction of microorganisms, and the longer the actual shelf life
.
If a product can be stored at room temperature for 7 days and stored at 4°C for at least half a month, it is not a problem
.
.
According to the laws of chemistry and biology, the lower the environmental temperature, the slower the speed of adverse chemical reactions, the slower the reproduction of microorganisms, and the longer the actual shelf life
.
If a product can be stored at room temperature for 7 days and stored at 4°C for at least half a month, it is not a problem
.
If frozen, it will not deteriorate for 3 months or more
.
Therefore, if you find that the bread you bought will expire tomorrow, the amount is a bit large and you can't finish it in a few days, it is recommended to divide it into small portions that can be eaten at a time, store them in the freezer, and enjoy them slowly
.
Of course, this is just a stopgap measure.
Don’t just keep it in the refrigerator and forget it.
After wasting a lot of electricity bills, you will end up eating expired things, and you will lose a lot.
.
.
.
Therefore, if you find that the bread you bought will expire tomorrow, the amount is a bit large and you can't finish it in a few days, it is recommended to divide it into small portions that can be eaten at a time, store them in the freezer, and enjoy them slowly
.
Of course, this is just a stopgap measure.
Don’t just keep it in the refrigerator and forget it.
After wasting a lot of electricity bills, you will end up eating expired things, and you will lose a lot.
.
.
Fifth, some foods must be especially careful to "modify the shelf life" and kill bacteria and poison before eating
.
.
Supermarkets and farmer’s markets have cooked meat and various soy products, once they expire, there is a high possibility that microbes will exceed the standard, and there will be food safety risks
.
Some salespersons are worried about economic losses.
They tear off the label and change the date.
In fact, they are selling expired cooked food.
This happens frequently
.
.
Some salespersons are worried about economic losses.
They tear off the label and change the date.
In fact, they are selling expired cooked food.
This happens frequently
.
Therefore, when buying this type of food, you must be careful about "provisional discounts
.
" Even if you see the label saying that it is not expired, don't eat it directly after buying cooked food, but sterilize it and eat it as quickly as possible
.
If you can't finish it right away, it is recommended to freeze it
.
Don't forget to heat and sterilize before taking it out for consumption
.
.
" Even if you see the label saying that it is not expired, don't eat it directly after buying cooked food, but sterilize it and eat it as quickly as possible
.
If you can't finish it right away, it is recommended to freeze it
.
Don't forget to heat and sterilize before taking it out for consumption
.
There are countless cases of vomiting and diarrhea due to eating expired cooked food and expired soy products at home
.
There are even college entrance examination candidates that affect their performance and miss the university they expected
.
So don't take risks!
.
There are even college entrance examination candidates that affect their performance and miss the university they expected
.
So don't take risks!
Sixth, from a social perspective, it is necessary to establish a supervision and management mechanism
.
.
For merchants who purchase temporary food on a large scale and use them to make food ingredients on site, there must be a supervision and management mechanism
.
.
For example, restaurants, snack bars, beverage shops, etc.
, may purchase these temporary foods in large quantities in order to reduce production costs
.
Originally, when used for large-scale production, the temporary food can be used up as soon as possible to avoid waste, which is a good thing
.
However, how to prevent them from using food ingredients after long expiration and poor quality? This is a subject of supervision and management
.
, may purchase these temporary foods in large quantities in order to reduce production costs
.
Originally, when used for large-scale production, the temporary food can be used up as soon as possible to avoid waste, which is a good thing
.
However, how to prevent them from using food ingredients after long expiration and poor quality? This is a subject of supervision and management
.
In short, food is hard-won and cannot be wasted
.
Temporary food cannot be thrown away, but it cannot be taken lightly
.
Understanding relevant knowledge, timely consumption or cooling storage, can help us reduce food waste
.
.
Temporary food cannot be thrown away, but it cannot be taken lightly
.
Understanding relevant knowledge, timely consumption or cooling storage, can help us reduce food waste
.
However, the most important thing is not how to buy impending foods with reduced prices, but to choose foods with high nutritional value, fresh and natural foods, and eat them in a reasonable combination
.
Good health is really good, and in the long run, it is really cost-effective to eat
.
.
Good health is really good, and in the long run, it is really cost-effective to eat
.
