Aflatoxin is the most harmful substance to human body in gutter oil, which is internationally recognized as a first-class carcinogen. The most important way to avoid the harm caused by gutter oil is to avoid eating gutter oil.

Effect of waste oil on human body

Indigestion

In the process of refining "gutter oil", animal and vegetable oils will undergo a series of chemical changes such as rancidity, oxidation and decomposition, resulting in substances that are highly toxic to human body; Excessive consumption of arsenic will cause indigestion, headache, dizziness, insomnia, fatigue, liver discomfort and other symptoms.

diarrhea

Once a large number of harmful microorganisms, such as bacteria and fungi, contained in "gutter oil" reach people's intestines, it will cause people's diarrhea, and in severe cases, it will cause people's nausea, vomiting and a series of gastrointestinal diseases.

abdominalgia

"Waste oil" is mixed with a large amount of sewage, garbage and detergent. After being extracted in the open air, bacteria and harmful chemical components cannot be removed. Among them, the lead content seriously exceeds the standard, which will cause severe abdominal cramps, anemia, toxic liver disease and other symptoms.

Gastric cancer and intestinal cancer

Swing oil contains aflatoxin and benzopyrene, both of which are carcinogens, which can cause gastric cancer, intestinal cancer, renal cancer and cancer in breast, ovary and small intestine.

The composition of waste cooking oil is very complicated, and the quality of the oil can be basically felt by looking and listening when it is cooled. However, it is often used in low-end food and consumption places such as small restaurants, so it is safest to cook and eat by yourself at present.

Determination of waste oil

First, look:

Look at the transparency, pure vegetable oil is transparent, and the transparency will decrease due to the mixing of alkali grease, wax and impurities in the production process; Look at the color, pure oil is colorless, and the oil will be colored because the pigment in the oil is dissolved in the oil in the production process; Look at the sediment, its main component is impurities.

Second, smell:

Each oil has its own unique smell. You can drop a drop or two of oil on your palm, rub your hands together, and smell it carefully when you are hot. Oil with odor indicates that there is a problem with the quality, and it is likely to be waste oil with odor; If there is a smell of mineral oil, you can't buy it.

Third, taste:

Take a drop of oil with chopsticks and taste it carefully. The oil with sour taste is unqualified, the oil with bitter taste has been rancid, and the oil with peculiar smell may be waste oil.

Fourth, listen:

Take one or two drops of oil from the bottom of the oil layer, coat it on flammable paper, light it and listen to its sound.

The products with normal combustion and no noise are qualified products;

If the combustion is abnormal and makes a "squeaky" sound, the water content exceeds the standard and it is an unqualified product;

The "crack" explosion during combustion indicates that the water content of the oil is seriously exceeding the standard, and it may be adulterated products, so it is absolutely impossible to buy.

V. Q:

Ask the merchant about the purchase channel, ask for the purchase invoice or check the sampling test report of the local food hygiene supervision department if necessary.