What is waste oil?

Gutter oil refers to low-quality oil in daily life, such as oil that is repeatedly used for frying or recycled oil after use. The biggest source of gutter oil is the grease traps in the sewers of large urban hotels or other restaurants and hotels. Long-term consumption is very harmful to the body and may cause cancer. Think about the gutter oil in the sewer and the cooking oil in the trash can. When you take it out, it smells bad, but through simple separation, it becomes a delicacy on the table.

So how to distinguish gutter oil:

1. Look at the color

Normal cooking oil is clear, while gutter oil is turbid and dark in color. This is because impurities, waxes and pigments are mixed in during long-term processing, repeated heating, and repeated insertion of items harmful to the body. The color of the oil is changed unknowingly

2. The feel of the oil

Gutter oil will feel sticky during repeated use. Take a little and put it in the palm of your hand. You can feel it when you rub it into heat. Oil used normally will not feel sticky. Moreover, normal tableware is very difficult to clean if there is waste oil.

3. Smell

Every normal and healthy oil will have its own smell. Rub two drops on your hands and smell the special fragrance when you get close. On the contrary, if it is gutter oil, it will give off a pungent, disgusting, and unpleasant smell.

4. Look at the solidification time

The solidification point of gutter oil is lower than that of normal oil. This is because many various impurities are mixed in during the processing. In the summer put the oil in the refrigerator for a few hours before taking it out. If the oil solidifies, it is not gutter oil, and vice versa.

5. Listen to the sound of burning

Take out one or two drops of oil at the bottom and put it on a piece of paper to burn. Generally speaking, normal oil will not make noise, but if it is gutter oil, it will make noise. A "squeaking" burning sound indicates that it contains a lot of water. If it makes a "crackling" sound, it means that the water content seriously exceeds the standard, and these oils cannot be purchased.

Finally: When buying oil, still You need to go to some regular supermarkets or stores and have a record of purchasing tickets. It has validity period, usage period, manufacturer, after-sales service and other material identification. Don't go to some Sanwu stalls to buy oil for cheap. You think you are taking advantage, but in fact it is your health that is being damaged. If problems arise later, you will have to spend a lot of money for treatment. Normally, you can cook by yourself or go to a physical store to eat, which is healthier. Try not to order takeout that looks cheap and has a lot of meat. Even if you don’t use the oil you use at home for repeated frying, it is no different from gutter oil. Diseases enter through the mouth, buy oil wisely.