Steamed bread is an indispensable staple food for northerners, especially during the Chinese New Year, a large pot of steamed bread will be steamed, and those that cannot be eaten will be stuffed into the refrigerator inside.
Now every household will freeze some steamed buns in the refrigerator, and take them out to warm up when they want to eat them , but many people have questioned whether aflatoxin will be produced for steamed bread that has been frozen for a long time? Listen to the doctor’s answer below.
Can I eat frozen steamed buns? Will aflatoxin be produced? The doctor will tell you the answer, I’ll have a good morning
Can I still eat frozen steamed buns? Whether aflatoxin will be produced, nutrition experts have conducted a series of tests, storing steamed bread in the freezer layer of the refrigerator for 5 days, and under sealed conditions, to see if aflatoxin will be produced.
The growth of aflatoxin requires temperature, and the temperature requirement is about 12~45℃. Above this temperature on food surfaces, aflatoxins can grow.
The temperature of the freezing layer of the refrigerator is all below zero, so it does not meet the temperature requirements for the growth of aflatoxins. In this case, the doctor also gave the answer, the steamed bread stored in the frozen layer will not proliferate aflatoxin.
But when the steamed buns are put into the freezer layer of the refrigerator, be sure to pay attention to the layering treatment, to avoid mixing with meat, otherwise even if it does not breed Aflatoxins can also breed some bacteria.
Eating steamed buns that are infested with bacteria will have a negative impact on health, and the storage time of steamed buns Within 10 days, too long storage time will lead to a large loss of nutrients and affect the taste.
Should the steamed buns be stored at room temperature or in the refrigerator? An experiment tells you
Although it is said that steamed bread will not breed aflatoxin, some people say that the taste of steamed bread will be worse when placed in the refrigerator. It is better to store it at room temperature. In order to verify this rumor, CCTV Finance and Economics “Is it true? “The program team conducted an experiment.
The program group first prepared two fresh steamed buns that were just out of the pot, and then packed them in air-permeable food bags. One portion is kept indoors at room temperature, and the other portion is kept in the refrigerator.
On the second day, the program team purchased the same fresh steamed buns again and divided them into two parts, and continued to divide them into two parts. One part is kept at room temperature and the other part is refrigerated.
On the third day, the reporter bought fresh steamed buns again, plus the previous 4 servings, With 5 samples of steamed bread, I came to the Institute of Agricultural Products Processing, Chinese Academy of Agricultural Sciences for analysis.
After testing, the hardness value of fresh steamed bread is 408 grams, and the hardness of refrigerated steamed bread after one day of storage is 216 grams higher than that of room temperature steamed bread , the hardness values of refrigerated steamed bread and room temperature steamed bread after storage for three days are basically the same.
The steamed buns at room temperature become hard due to the loss of moisture. After re-steaming, the steamed buns stored at two different temperatures There is no difference between the steamed buns, the hardness value is similar, but lower than the fresh steamed buns.
So whether the steamed buns are stored at room temperature or refrigerated, after heating, the steamed buns will The taste is similar, but it is prone to mildew when stored at room temperature.
How to save and compare the steamed buns that cannot be eaten Good?
Pouches
After the steamed buns are cooled, put them in a fresh-keeping bag, squeeze out the air in the fresh-keeping bag, and then seal it for storage, which can preserve the taste of the steamed buns to a large extent and prevent the taste from becoming hard.
Place it in the freezer layer
Do not put steamed buns in the refrigerator compartment of the refrigerator, because it will accelerate the speed of the steamed buns to harden and dry, and the storage time of the refrigerated compartment is about 1~2 days. There is a risk of deterioration, so put the steamed buns in the freezer layer of the refrigerator.
Use steam Pot heating
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