Reporter survey: Ji'nan fresh oil shop hidden hidden impurities more likely to cause cancer
Qilu's
according to the Shandong radio and television news center "survey", edible oil can be said to be in the family life of our people. The necessity of three meals a day can hardly be separated from it. But in recent years, frequent occurrence of waste oil, black heart oil and problem oil has made consumers more alert to the choice of cooking oil. In order to eat safe oil, many consumers turn to buy bulk fresh oil on the market. Then, these fresh, pure and non added fresh oil on the market can really make people feel at ease? The reporter conducted an in-depth investigation.
crude oil mill equipment is crude, consumers worry about oil quality
in a farmer's market in Ji'nan, reporters found a fresh oil stall. There are several bottles of samples on a small table at the entrance of the shop. The reporter noticed that the fresh oil was clear from the appearance of yellow, smelling, and no difference between the brand barreled oil sold in the regular supermarket, but the packaging was relatively simple, and there was no label on it. The owner said that the oil quality of his family was absolutely fine, not only the quality of raw materials was assured, but also the oil extraction equipment was very advanced.
the owner of the shop said that the oil in the supermarket in the supermarket is so clear that the equipment used is the same as our equipment, and this set of equipment is more than ten thousand. The shopkeeper constantly recommends that the price of a barrel of 5 liters of peanut oil is 110 yuan, the price is cheaper than the brand barreled oil in the supermarket, and it is absolutely not added, and the taste of the food is more fragrant, so the business is quite good.
later, the shopkeeper took the reporter to the shop and continued to introduce the oil extraction equipment. He said, "don't look at the equipment, but it looks very simple, but in fact it's very powerful. All the other processes of the oil press can be done in this process, except for the scrambled process."
in order to witness the process of oil extraction, the reporter proposed to the owner of the house to squeeze several jin of oil from his peanuts, but he was rejected. The reporter noticed that in the seven or eight square meters of the store, in addition to a frying pan, an oil press, a fresh oil buckets, but also a lot of living supplies and debris. Although the owner said his own oil quality is guaranteed, it is very popular, but the reporter in the vicinity of the interview to understand that many consumers are still a little worried about the fresh oil.
family oil press is very popular with the quality of raw materials, but it is difficult to check
some people say that the fresh oil on the market is unreliable. Gradually rising.
reporters entered the household press on Taobao, with up to more than 4000 related products, of which the best seller sold more than 500 units a month. Many people in the interview said that the oil squeezed by the household press was relieved.
then, is this oil squeezed out by this family of oil squeezing machine, is it just as healthy and safe as the business propaganda and consumers think? The reporter came to a merchant super sales counter in Ji'nan. According to the sales staff, the working principle of the family oil press is simple, that is, pure physical press, the whole process is all automatic machine. Operation, so the oil extracted is pure natural, without adding any chemical components, therefore, it is more and more favored by consumers.
reporter has learned that ordinary household presses can squeeze peanuts, sesame seeds, rapeseed and other oil. Take peanut as an example, the oil yield of this oil press is generally around 40%, that is to say, a pound of peanuts can squeeze 4 or two oil. But in the process of oil press, the press found that the oil squeezed by the home oil press, compared to the oil used in our families, looked more sticky and cloudy. In this regard, the manufacturer of oil press manufacturers said that, after all, it is pure physical extrusion, there are some peanuts powder, a little natural precipitation, the above is the oil, the underneath the peanut butter.
according to the sales staff of the home oil press, the key point of the family oil press is that the people can control the quality of the raw materials themselves, and the whole process of pressing the oil is not added, so that the oil can be absolutely safe and healthy. Then, can the people of our people be able to be a good keeper of the quality of the raw material? Will the large amount of sediment in the fresh oil affect the quality of the oil? The reporter extracted a sample of peanut oil from the sales counter and the previous press, and sent it to a professional testing Agency for testing. The oil of Aspergillus flavus extracted by the court press is not detected. The content of the fresh peanut oil aflatoxin in
does this mean that the common people themselves can be a good raw material keeper? Is there any other risk in it? According to experts, ordinary consumers, in the process of selecting raw materials such as peanuts, can only identify the peanuts that have sprouted or have other clearly mouldy appearances by the naked eye. In fact, some of the peanuts are normal in appearance, but may be mildew inside, so it is not reliable to rely solely on the naked eye to observe whether mildew is found in peanuts.
fresh oil contains a lot of impurities, low smoke point and easy to produce carcinogenic substances.
a large amount of impurities contained in fresh oil is also a major hidden danger. According to experts, the amount of impurities contained in oil is closely related to the level of oil smoke. The so-called cigarette point refers to the temperature at which oil starts to smoke. Generally speaking, the lower the smoke point, the more harmful substances are produced during the cooking process. For example, the harmful substances such as acrolein in lampblack have strong stimulation to the eyes and respiratory tract. So, this has not been purified process of fresh oil, what about the point of smoke?
according to professionals, fresh oil is mainly by natural precipitation, and natural precipitation is the most likely to lead to excessive residue in the oil, and the impurities in the oil will directly affect the smoke point of the oil. After testing, the smoke point of fresh oil is very low, and it is very serious when it has not reached the smoking point. Liu Qingnian, director of the expert committee of the Ji'nan Food Industry Association, said, "in the case of high temperature, it has a lower smoke point. As long as the oil is a cigarette, it is necessary to produce some bad substances, like 3-4 benzopyrene, everyone knows it is a carcinogenic substance, and the home-made homemade oil is as oil as possible when we stir fry. Temperature must not be too high. If too much, it will produce harmful substances.
except for low smoke point, it is easy to produce harmful substances. Fresh oil containing more impurities is often more difficult to store and easy to deteriorate. Liu Qingnian told reporters, "homemade oil is relatively muddy, containing more impurities, it is easy to sour oxidation, so the oxidation value is high, the acid price is high, and these two indicators are clearly defined, so the self-made peanut oil can not be stored for a long time."
, therefore, experts remind consumers that, although fresh oil is fresh and flavors are flavored, because the press or household pressing machine of small workshop is simple, it can not be strictly tested and screened, so there may be pesticide residues, heavy metal contamination, and aflatoxin exceeding the standard. There will be some hidden dangers. It is suggested that consumers must go to regular shopping malls and supermarkets to purchase regular cooking oils and regular brands.