Frozen steamed buns can’t be eaten? Will breed aflatoxin? Doctor tell the truth, find out

Introduction: my country has a vast territory and abundant resources. Each region has its own unique diet. The diet structure in the south, rice and north has not changed.

Steamed buns are the staple food of the vast majority of northerners, almost people cannot do without him for three meals a day , although it is small in size, it can emit a lot of energy, which can not only enhance the feeling of fullness, but also maintain the normal operation of the body and meet people’s needs for energy substances.

For the vast majority of northern families, everyone chooses to steam steamed buns at home in their spare time. And every time steamed buns are steamed in a large pot.

Freshly baked buns The taste is chewy, the preparation is soft, and it tastes like bread. It is very delicious and makes people want to stop. When the stewed steamed buns are too much to eat, they are usually stored in the refrigerator and can be taken out and heated directly when you want to eat them next time.

Some time ago some people claimed that frozen steamed buns cannot be eaten, and steamed buns will be easy to eat after three days in the refrigerator Breeding aflatoxin, so is this statement true or false? Let’s take everyone to find out today.

what Is it aflatoxin?

Aflatoxin (AF) is actually a secondary metabolite produced by toxin-producing strains such as Aspergillus flavus and Aspergillus parasitica. A highly toxic substance.

Among the naturally contaminated foods, aflatoxin B1 is the most common and the strongest known a chemical carcinogen.

As early as 1993, the Cancer Research Institute of the World Health Organization had designated aflatoxins as Class I carcinogens.

It is very toxic to humans, and it has obvious damage to the liver, which will easily cause liver parenchyma Necrosis, hepatic fatty infiltration, bile duct epithelial hyperplasia, hepatic hemorrhage and other lesions.

Freezing Can’t eat the steamed buns? Will breed aflatoxin? The doctor tells the truth, let’s find out

There is also a corresponding experiment about this statement. The researchers divided 200 steamed buns into 10 groups, respectively Stored in the refrigerator for different storage days, it was finally found that after three days of frozen storage, there was no problem of mold growth.

Steamed buns that have been stored for more than three days have no mold contamination, but they are different from the original There has been some change in taste.

The water loss is also serious Yes, after reheating, the degree of softness is relatively lowTherefore, it is a rumor that steamed buns stored in the refrigerator for more than three days will easily breed aflatoxin.

The production condition of aflatoxin is 12~42℃, but the temperature of the refrigerator cannot reach such Conditions, in addition to humidity also has a very large requirement for the growth of aflatoxin, the general humidity needs to be kept at around 78%~98%.

Regardless of humidity or temperature, the conditions in the refrigerator are not suitable for aflatoxin to survive, so in general Aflatoxin will not grow in the refrigerator, nor will it cause aflatoxin to grow in the food in the refrigerator.

Remind everyone: try to eat these 3 kinds of steamed buns as little as possible

Moldy steamed buns< /p>

If the steamed buns are stored for too long, it will easily lead to mildew and deterioration, because the steamed buns contain a lot of carbohydrates. After humidity, it is easy to make carbohydrates breed some molds, especially aflatoxins.

So if you find that the steamed buns at home are moldy and spoiled, don’t eat them again, even if they are Only a small part of the eye should be discarded, as the remaining part may become infected as well.

Fried steamed buns

Fried steamed buns are crispy and tender. Although they are very delicious, it is not recommended to eat them frequently.

The steamed buns are fried After that, it contains a large amount of acrylamide, which is a carcinogen.

And relevant studies have shown that acrylamide is closely related to the occurrence of pancreatic cancer, lung cancer and other cancers, so for personal If you are healthy, try to eat less fried steamed buns.

Colorful buns

< p data-track="29">Colorful steamed buns were loved and welcomed by children when they first came into the market, and many merchants claimed that the colorful steamed buns were made from fruits or vegetables.

But in fact, many small workshops will use various pigments to make steamed buns for cheap, and often eat like this Eating steamed buns will not only bring benefits to your health, but also easily induce food poisoning problems such as abdominal pain and diarrhea.

How to store the unfinished steamed buns?

Refrigerator storage method

Whether it is home steamed steamed buns or bought steamed buns, before putting them in the refrigerator for refrigeration, you must put the steamed buns in a certain amount first, and ensure that there is no excess moisture on the surface.

Next, everyone will prepare some plastic wrap, and use the plastic wrap to wrap all the steamed buns one by one , without leaving a trace of gaps to ensure that the steamed buns will not come into contact with air, and then put them in the freezer of the refrigerator for storage.

Refrigerator freezing method

Also follow the method mentioned above, wrap the steamed buns, and then put them in the freezer of the refrigerator for storage.

However, this method will save a lot of time for a long time, because the temperature in the freezer is relatively low, and there will be no damage after 2~3 months question.

What foods are prone to produce aflatoxin?


Peanut is one of the crops that are very susceptible to aflatoxin, and it has a very high affinity for peanut.

If the peanuts have a moldy problem, even after cleaning it has no effect, I found that the peanuts at home have In case of mildew, it must be thrown away as soon as possible.


Moldy nuts are also prone to the growth of aflatoxin, which is a first-class carcinogen, and its toxicity is 68 times that of arsenic.

If the nuts are improperly stored during storage, or if you buy spoiled nuts for too long, it will be easy to There is a phenomenon of mildew and deterioration.

Conclusion: In today’s In the era, refrigerators have entered thousands of households, and have become an important “safe” for everyone to store food, but here we still need to remind everyone that although refrigerators are very good universal appliances, they are not all Almighty food, long-term storage will also easily lead to deterioration problems, which will affect personal health.