Knife knife all edible oil mixed with waste oil

The state and relevant departments are still discussing and demonstrating the detection methods of waste oil, and summarizing the following points for your reference.

1, taste: if the oil taste contains spicy taste, it is probably edible oil extracted from waste oil;

2, odor identification: take a small amount of cooking oil in the palm, rub it back and forth with the palm, if there is odor, it is likely to be mixed with waste oil;

3. Put it in the refrigerator: put the oil in the refrigerator at 5 to 8 degrees Celsius. After 2 to 4 hours, it will solidify and crystallize, probably waste oil. Because the waste oil is added with animal oil with equivalent oil content.

4. High fire: If the color of the oil changes after high fire cooking, and the color becomes thick and black, it is likely to be gutter oil, because the small particles contained in gutter oil are easy to change color after burning.

5. Look at the oil transparency. Authentic edible oil is clear and transparent. When you put a note on one side, you can clearly see the words on the other side under the opposite light, and the gutter oil is definitely turbid. The more mixed, the more turbid the oil.

This society is full of vicious competition and unscrupulous businessmen. You don't have to be too alarmed. What you need is to study slowly, so that you can distinguish something. Of course, the most important thing is to hope that the state will strengthen supervision and give consumers and regular manufacturers a safe food environment.