Why does it thicken when it is cold in Lu Hua's 5s peanut oil press?

At a certain low temperature, the liquid state of edible vegetable oil gradually changed from clear and transparent to hazy, and the precipitate gradually appeared in a solid-liquid mixed state, and finally completely changed into a solid state, which is commonly known as freezing. It is normal for cooking oil to condense and thicken, which does not affect eating.

The solidification of peanut oil is also a gradual process. When the temperature drops to near the critical point of 10℃, peanut oil will produce some flocs and the oil will become turbid. The physical change of edible vegetable oil solidification in winter does not affect the product quality. The solid matter in edible oil is saturated fat and does not need to be removed. Vegetable oil is still triglyceride after solidification, without any chemical changes, and it will still become clear and transparent after the temperature rises.

Extended data:

Distinguish between true and false peanut oil;

A look: oil paint. High-quality peanut oil is light yellow and transparent, with clear color and no sediment, while dark and turbid peanut oil is inferior.

The second smell: smell the oil. High-quality peanut oil has fragrant smell and pure taste; The smell is rich but the smell of peanuts is not enough, and the smell is inferior oil. You can also drop a drop or two of peanut oil in your palm, rub it until it gets hot, and put it in front of your nose to smell it. Pure peanut oil can smell a strong peanut oil fragrance, and peanut oil mixed with essence begins to have a faint peanut oil fragrance. Wipe it again, pure peanut oil still maintains a strong peanut oil fragrance.

Three frozen: refrigerated peanut oil. Adjust the refrigerator to 10℃ and drain the oil for about 10 minutes. Half of the pure peanut oil has begun to solidify, the peanut oil mixed with a lot of soybean oil is only slightly solidified at the bottom, and the peanut oil mixed with palm oil is mostly or completely solidified, with white crystals at the crystallization place.

Four frying: pure peanut oil, no overflow, no foam, no lampblack, pleasant fragrance for high-quality peanut oil; When heated, the pot overflows, bubbles, has a large oil smoke, and even turns dark and black, which is inferior peanut oil.

People's Network-How to choose four tricks for peanut oil and simply distinguish between true and false?

People's Daily Online-It is normal for edible oil to freeze. Different oils have different freezing points.