"Come and taste the steamed buns I just cooked" On this day, the neighbor Uncle Wang came to the home of Aunt Li next door as a guest, and just happened to meet Aunt Li after cooking a large pot of steamed buns. When Uncle Wang saw these steamed buns that had just come out of the pot, he did not take them to eat directly. This made Aunt Li feel very puzzled, is it because the steamed buns I made myself are not delicious?
Uncle Wang quickly replied: "It's not that I don't dare to eat these steamed buns, mainly because these steamed buns that have just come out contain a lot of yeast, and these yeasts will have a risk of carcinogenesis after eating." After listening to these words spoken by Uncle Wang, Aunt Li quickly put down the steamed buns she was going to eat.
After her son and daughter-in-law returned, Aunt Li told them about it. When the two people heard the news, they were very skeptical. For them, why did they not have any disease after eating steamed buns for more than 30 years? Speaking of which, let's talk about it today, can yeast really cause cancer? Can we continue to eat these things?
One. Explanation about yeast
Yeast is a very common thing in our daily life, and it has been greatly used in food. In general, yeasts ferment in an aerobic environment. For example, after we make noodles, we use a layer of plastic wrap to seal it and heat it to a certain extent, and after 20 minutes, the dough will become twice as much.
From a biological point of view, yeast is a single-cell synthesis, which is fundamentally different from polymolecular cells. In the state of ordinary microorganisms, it often forms an oval or square shape, and its size is about 3 times the size of ordinary bacteria.
This bacterium is relatively stable in nature and is often in a static state. If heated, this yeast loses its stability.
Do you think yeast can really cause cancer, many people see such a question, there is no fixed answer in their minds. Perhaps we are already strange about such carcinogenic claims, especially when we often see such questions in major websites. Many medical experts have also conducted a large number of clinical trials on this claim about whether yeast causes cancer.
Dr. Wang of the Department of Pathology of Peking University Medical College said that the claim that yeast causes cancer does not need to be believed at all, and this statement is completely unsubstantiated. Yeast itself is a microorganism, and the main role is to add it when steaming steamed buns or steamed buns.
And when used, the temperature of the steam should be controlled at about 100 degrees, and at such a temperature the yeast has lost its activity and no longer exists. That is to say, yeast only plays a role in making the dough ferment larger, and it is sacrificed after completing its mission.
Therefore, through the above situation, we can know that yeast does not cause cancer. Therefore, even if the steamed bun contains yeast, there is no need to worry at all, and there is no possibility of carcinogenicity after eating. Through the above-mentioned things about Uncle Wang and Aunt Li, we can know that what Uncle Wang said was wrong.
Second, is eating steamed buns and bread regularly harmful to health?
The claim that eating steamed buns and bread is harmful to health is considered by many to be very absurd, and if eating steamed buns and bread is at risk of endangering health, what else is healthy? In fact, the steamed buns and bread mentioned here will be harmful to health, because the practice and ingredients have a lot to do with each other. If too many additives or hormones are added to steamed buns and bread, it is bound to endanger our health.
The following types of steamed buns we must learn to distinguish, which should be eaten and which should not be eaten, here we need to popularize science.
First, moldy buns and bread
As we all know, once the steamed bread and bread are moldy, they must not be eaten. This is mainly because after mold, a large amount of aflatoxin is produced on the surface and inside. Once the human body takes foods with this toxin for a long time, the risk of carcinogenicity will be greatly increased.
It should also be reminded that some people think that cutting off the moldy parts is no big deal as long as there is no mold. This idea is completely wrong, even if only part of the mold appears, aflatoxin will penetrate into the part that is not moldy.
Second, leftover steamed buns and bread
Leftover steamed buns and bread are also inedible, and once left on hold for up to 6 hours, nitrites will be produced. When this substance enters the stomach, it will combine with the amines in the stomach to form nitrosamines.
This substance has long been listed as a first-class carcinogen by the mainland food safety department, and if the human body eats this steamed bun for a long time, the possibility of causing cancer will be very large. Here to remind the thrifty people in ordinary life, it is very normal to leave the bread and bread, but try not to do this behavior.
It is recommended that if there is a situation of steamed buns and bread, it should not be left for more than 6 hours, and then put in the refrigerator after it is completely cool. The best way to go over 6 hours because of a situation is to throw it away.
Third, add whitening agent to the steamed bun
The reason why the whitening agent is added is to increase its aesthetics, so that consumers can see that there is a greater desire to buy. When steaming steamed steamed
Therefore, when consumers see it, they will buy it because of this color or this state. But on the other hand, eating too much of this steamed bun with a brightener can lead to a series of diseases in the stomach and intestines. Especially in recent years, the mainland food safety department has begun to carry out very strict inspections in response to this situation.
Fourth, fermented steamed buns
With the development of the level of science and technology, there are many barbecue tools on the market today. Therefore, many people will use this barbecue tool to grill steamed buns, and this practice has become very popular.
But it should be noted that when we are roasting steamed buns, we need to master a heat, and this heat cannot be too large or too small. When the heat is too large, the steamed bun will appear to be burned, and at this time, do not think that the steamed bun will be healthier after being burned. This statement is wrong, when the steamed bun is baked, acrylamide will appear.
If this chemical is ingested for a long time, it will cause certain damage to the stomach and intestines. Mild cases will cause diseases such as gastroenteritis or indigestion, and in severe cases, cancer cells will occur.
Fifth, dessert steamed buns and bread
This kind of steamed bun and bread will be put on the market in 2021, and it will be loved and sought after by the majority of consumers at the beginning, but there are also various problems behind it. The main purpose of this dessert is to attract consumers and thus seek more benefits.
Although it is delicious, it contains a lot of sugar, and long-term consumption will lead to an increase in sugar in the body. This will increase the production of high blood sugar or diabetes and other diseases, try to pay more attention.
Third, the difference between yeast and baking soda
The two substances of yeast and baking soda are two additives used in the processing of pasta foods today, and the two substances are still fundamentally different. When many people make steamed buns or bread, they often struggle with which of these two things is the best.
In fact, yeast and baking soda play a similar role, but there is a difference in whether the sugar is high or low. Yeast is a better choice when making foods that are low in sugar, and these low-sugar foods can refer to foods such as steamed buns and flower rolls.
When making something high in sugar, baking soda is a better option, such as sugar cakes and other foods. It should also be noted that after baking soda is put into these foods, the effect of fermentation may not be ideal.
For our daily steamed steamed buns or when making some bread, the most used is yeast, and the fermentation effect achieved by this substance after adding steamed buns is very good. When we visit the supermarket, we often hear others recommend yeast.
The reason why baking soda is not used often is because the substance itself has an alkaline taste, and as long as it exceeds a certain amount, it will appear yellow. This is not the most important, more important is that this substance will deliberately destroy the vitamins and other nutrients in the food, resulting in a great reduction in the nutritional value of the steamed food.
Therefore, combined with the above factors, yeast has a greater advantage than baking soda, and it will also be liked by more people. But it is not necessary to choose yeast, mainly according to their actual situation to choose.
When we buy yeast, we don't necessarily just look at its benefits, but more importantly, we must also pay attention to the following factors.
First, when buying yeast in the supermarket, do the three-look principle. The first principle is to look at its manufacturers and try to choose large factories. These large factories have strict production standards, and the products produced are in line with sanitary standards, and we can only rest assured that we can use them.
The second principle is to look at its production date, as far as possible to choose the most recent production date, in order to ensure the freshness of yeast. The third principle is to look at its safety signs, when these products have safety signs, it will indicate that its safety status is good.
Second, when buying yeast, you should consider your own dosage before purchasing, and it is generally recommended to buy small doses and small packages. This is because small packages not only meet the need for quantitation, but also avoid excessive waste.
There are many people who tend to choose large doses and large packages when buying, but in the end there may be waste. Therefore, when buying, adhere to the principle of how much to buy, do not follow the trend of buying in large quantities.
After purchasing yeast, it is also necessary to determine according to its own use. Every time when making steamed buns, the amount of yeast used is appropriate and not excessive. After adding yeast to the dough, the time should be extended later in the dough process.
It is recommended that when kneading the dough by hand, the time can be controlled for about 30 minutes to allow the yeast to fully dissolve into the dough. As a result, the noodles become more powerful, and we will taste more delicious when we eat them.
In addition to controlling the time, it is also necessary to pay attention to the humidity of the surrounding environment and try to do it in a cool environment. After making the dough, what needs to be done immediately is to take precautions to close it.
Fourth, old noodles and yeast two fermentation methods
In the sixty-seventh years of the last century, the older generation liked to ferment with old noodles. This fermentation method has been said since the Tang Dynasty and is one of the oldest traditional fermentation methods.
However, in 1991, the relevant medical department pointed out that this method has health risks. This is because the old noodles are in an aerobic environment, after a long period of shelf or storage, the surface and interior will automatically produce a large number of bacteria.
Most commonly, aflatoxin appears on the surface, which multiplies and multiplies and then spreads throughout the dough. Therefore, once the human body takes the pasta made with this old noodle, it will cause damage to the human stomach and intestines. Mild cases will only cause diarrhea or stomach ulcers, and in severe cases, this toxin will lead to the production of cancer cells.
In addition to the above-mentioned situations, the dough fermented by this old noodle contains a certain sour taste in itself, so that the steamed steamed bun tastes very astringent. It greatly affects the taste of the food and brings people a very bad feeling.
Whether it is from the health side or the taste side, yeast has a greater advantage, which is why many people choose yeast.
Five, use yeast tips
First, the yeast must be unwrapped with warm water before use, when the yeast is poured into the bowl, and then stirred with chopsticks while pouring warm water. This not only maximizes the activity of the yeast, but also benefits the fermentation of the dough afterwards.
Second, according to a certain ratio principle, the proportion of flour and yeast used is 1:0.5%, which is the most appropriate ratio at present. At this time, if we want to judge to what extent the dough has fermented, the best way is to poke the dough with our own fingers, and when we release our hands, the place that is poked will immediately bounce back, and when we encounter this phenomenon, it means that it has been fermented to the most appropriate point.
summary
The claim that yeast causes cancer is completely non-existent, and once you hear such rumors in the future, you must keep your sanity. In our daily life, we can use yeast for fermentation with complete confidence, while carefully choosing old noodles and baking soda.
When used correctly and reasonably, yeast will not bring any harm to our health, let alone worry about diseases in our bodies. If you have stomach upset after eating food fermented with yeast, you should immediately go to the hospital to ask a doctor and perform an examination.