Edible oil is used by every household, stir-fry is inseparable from oil, usually we are going to convenience stores, supermarkets and even wholesale markets and other places to buy, and the price is also acceptable to the people, it is no longer the past, everyone feels tight on the oil days.
However, in addition to the oil bought on the market, many people have also eaten their own squeezed oil, many people also think that self-pressed oil is a fragrant dish is also more delicious, earlier there were many people, will prepare materials, some people will drive in the countryside, in this oil press, to the village mouth to give people oil, that smell is a special incense, but also become a childhood memory of many people.
It's just that now it is rare to see such a scene, only a small number of people will self-press oil, so is it better to self-press oil, or to buy barrel oil?
To say that self-pressed oil is divided into vegetable oil and animal oil, animal oil is mostly lard, buy some lard oil, and then cut into small pieces to clean up, and then put into the pot, add half a bowl of water, first boil on high heat, and then turn the low heat slowly boiling, slowly the water will begin to disappear, and the oil will begin to increase, wait until the lard plate oil has become oil residue, it is boiled well, after the oil is slightly cooled, filtered through the oil residue, the slightly yellowed oil is placed in the container, and when it is cooled, the lard will become white and fragrant.
In addition to animal oil, there are vegetable oils, which will also be divided into peanut oil, rapeseed oil and soybean oil, usually select the fresh raw materials produced that year for pressing oil, the oil aroma can be smelled by neighbors, in my childhood memory, that rapeseed oil is the most common.
And because people now pay more attention to natural, natural, coupled with the selection of self-pressed oil materials that can be seen, these raw materials are safe and reliable, as for the purchased barrel oil, raw materials can not be seen, whether there is any addition to the inside and the oil pressing environment is not clear, so that many people feel that self-pressed oil is safer, healthier, healthier, without any additives, and the older generation of people have eaten a lifetime is also very good, then these self-pressed oil is certainly no problem.
Even more, due to the small amount of self-pressed oil, the taste is fragrant, and even many people began to pursue self-pressed oil, and its price is more expensive than barreled oil, even so, but also let many people compete to chase, become a green food in the eyes of many people, so to speak, does not mean that self-pressed oil is better than the supermarket barrel oil, healthier?
This is not the case, of course, not that self-pressed oil is necessarily bad, but that it cannot guarantee quality.
First of all, let's take a look at the barreled oil on the market, most of these are soybean oil, it looks like the price of these oils is relatively affordable, and even can see the promotion of oil, so that many people produce cheap and no good goods, why sudden promotion, is there a problem with this kind of idea, but in fact, so the oil produced by the regular large oil mills is in line with the national production standards, health standards, etc., can be guaranteed that these oils, health and safety, when the production has been removed from the bacteria, very safe, and then the government will randomly conduct sampling in the supermarket, To avoid counterfeiting in supermarkets.
The reason why this kind of oil will be so cheap is because as a large oil mill, the raw materials they buy are all in large quantities, and even have their own planting bases, coupled with mechanized production, the demand for manpower is also reduced, which reduces the cost of raw materials and the cost of labor, and the price of these ordinary barreled oils will naturally not be high, and the people can afford to buy oil.
However, it is a pity that these ordinary barreled oils are mostly impregnated with organic solvents in oil mills, also in order to increase the oil yield, but the disadvantage is that the oil is not fragrant, so many people think that the oil in the supermarket does not have self-pressed oil nutrition. However, although it is not fragrant, it is not so bad to eat, and it is also safe and reliable.
So speaking of which, isn't self-pressed oil safe and reliable?
To talk about self-pressed oil, it is usually a small workshop, or their own home processing, although processed out, but there is no sterilization equipment, and regular oil mills, squeezed out of the oil, but also sterilization is not the same, plus those raw materials, sometimes are beginning to deteriorate, our naked eye is unable to distinguish, but in fact, the interior may have aflatoxin, so the self-pressed oil in the absence of treatment, which will contain some harmful substances exceeding the standard, even if you personally select the material, you are difficult to escape this situation.
This aflatoxin has long been identified by the World Health Organization Cancer Research Institute as a class of naturally occurring carcinogens, and it is also a highly toxic substance with strong toxicity, so if the self-pressed oil is not produced well, what it contains, we really don't know.
In addition to the problem of this bacteria exceeding the standard, there is also a self-pressed oil is not refined and processed primary oil, referred to as crude oil, the oil on our market, are on the basis of the initial oil, refining, removing impurities, decolorization and deodorization and then selling, the stability of the oil is very good, so there is basically a shelf life of 3 years.
However, self-pressed oil is still crude oil, so it is not stable, on its impurities, it is also easy to oxidize and deteriorate, so it cannot be stored for a long time, but many people do not know that self-pressed oil can also be placed for a long time, and when pressing oil, it is usually squeezed more for storage.
In addition, when cooking vegetables, stir-frying and frying, it is relatively easy to smoke, but the general family is buying barreled oil for household use, which may not feel very profound, but the "smoke point" of self-squeezing oil is extremely low, and these oil smokes will cause irritation to the eyes and respiratory tract, if this is the case for a long time, it is also a greater harm to the human body.
So it seems that it is not to say that the dish is fragrant, it must be a good oil, of course, it does not mean that the self-pressed oil can not be eaten, in the case of ensuring the safety of the oil pressing process has been hygienic, the self-pressed oil can still be eaten occasionally, but can not eat more, the family has children also try to avoid giving children to eat, eat more or will affect a certain health.
Do you think self-pressed oil is better or bottled oil sold in supermarkets?