The surface claims to be natural and healthy, but in fact it hurts the liver and causes cancer! Remind the old people at home not to eat this oil any more.

I don’t know when, my parents at home began to be obsessed with "self-extracting oil".

It is often seen that their circle of friends are drying their own "self-squeezed peanut oil", saying that it has no additives and tastes particularly fragrant.

And a search on the website shows that these self-squeezed oils have been transformed into online celebrity products with monthly sales exceeding 10,000.

The question is, are these self-squeezed oils really healthy?

What’s the problem with squeezing peanut oil from the soil?

As a matter of fact, peanut oil squeezed from the soil has not only been exposed by the news once, but the sales channel of self-squeezed oil relies on the word of mouth of middle-aged and elderly people.

(screenshot of e-commerce website)

But behind these so-called pure nature, there may be a fatal injury-aflatoxin!

Aflatoxin, which is classified as a first-class carcinogen by WHO, is extremely common in daily life and has far-reaching influence.

(IARC carcinogen list)

The study found that:The toxicity of aflatoxin is 68 grades higher than that of arsenic., known as the king of toxicity. How powerful is it? In fact, it is terrible because it is harmful whether it is eaten for a long time or for a short time.

First of all, it will affect the liver after entering the human body, affecting the detoxification effect of the body, showingAscites, edema of lower limbs, vomiting, loss of appetite and fever.After that, it gradually spread to the whole body to form cancer and eventually lead to death.

Even if it is eaten in a small amount for a long time, according to the risks known at present, people will suffer from liver cancer unconsciously.

(Source: CCTV Focus Interview)

Aflatoxin is usually concentrated in these foods:

From the carrier to which aflatoxin can attach, it is more likely to exist in dark, humid, spoiled and rotten food.

First, moldy rice and peanuts

In the hot weather environment in summer, many foods are prone to mildew. If the common rice and peanuts in daily life are improperly stored and mildewed, they will become the gathering place of aflatoxin. Once it happens, it needs to be discarded in time to prevent health problems.

Second, deteriorated melon seeds

Due to improper operation in transportation, storage and preparation, melon seeds are prone to mildew, especially in the whole package of melon seeds sold in supermarkets, bitter and astringent melon seeds often appear.

Third, corn with mildew spots

July and August are the season when corn ripens, which coincides with summer and is also the season most prone to mildew. Therefore, it is necessary to preserve corn properly in a dry and cool environment, so as to reduce the possibility of mildew and reduce the deposition of aflatoxin.

Among them, earth-pressed peanut oil has always been the hardest hit area with excessive aflatoxin, and we often see similar news:

Why is it easy to grow aflatoxin when peanut oil is squeezed from the soil?

In fact, compared with other foods, peanuts blossom on the ground and bear fruit underground, and soil happens to be the main source of aflatoxin in peanuts.

The humid environment is conducive to the growth of aflatoxin. If peanuts are not dried in time after collection, a large number of toxins will be produced in a short period of time.

The self-squeezed peanut oil is produced in a small workshop, and the selected raw materials are not well guaranteed. It is impossible to adopt a standardized process to remove toxins, and it is inevitable that there will be hidden dangers of toxins only by naked eyes.

In addition, the traditional manual oil refining of earth-pressed peanut oil, coupled with the pure manual production in small workshops, has low general investment, and its equipment and technology can not remove impurities.

(Screenshot of a real shot of a soil-pressed oil production equipment)

There are many impurities in crude oil, such asWater, mechanical impurities (dust falling from the air during soil pressing), free fatty acids and metal compounds.Wait, there may be some toxic heavy metals left, such asArsenic and mercuryAnd so on, or some residual pesticides.

Many of these impurities will pose a health hazard to the human body.

These unrefined crude oils have many health risks, so China’s food safety standards have long stipulated that,This kind of crude oil can not be eaten directly, but can only be used as raw material of refined oil.

The risk of extracting oil from soil is much more than we thought.

You know, in addition to aflatoxin, in order to improve the oil yield, small workshops will raise the temperature during the seed frying process, which makes it easier to produce more.benzopyreneAnd this kind of substance is also a carcinogen.

In addition, the oil extracted from earth has not been refined, and the smoke point is low, usually only at 150-160℃, so when it is used for cooking, it is easier to produce more fumes.acroleinThis substance has a strong irritating effect on eyes and respiratory organs.

In addition, there are many impurities in itself, so it is difficult to store and easy to deteriorate. The rancid oil is naturally not conducive to human health.

It is understandable to pursue pure natural food, but blindly pursuing "homemade", "indigenous" and "original ecology" is more likely to backfire.

Therefore, for the sake of family health, it is necessary for us to remind them that these self-extracting oils are really not allowed!

Reference article:

[1]. Yu Jinhui, Cheng Lian, Chen Bicong, etc. Study on the influence of aflatoxin B1 content in earth-pressed peanut oil [J]. Modern Food, 2020,(7):185~188.

[2] Chen Tao. Monitoring of aflatoxin pollution in peanut oil sold in Fujian Province in 2016 [J]. Journal of Strait Preventive Medicine, 2017,23 (5):75~77.