Why does peanut oil have sediment? Why does peanut oil foam?

Peanut oil has a strong peanut flavor, and is very tasty when used in cooking or cold dishes. It can give people a light milky flavor. Adding a proper amount of peanut oil before cooking can make the dishes taste better. The peanut oil I bought in the slightly cold winter weather has sediment. What's going on? Please continue to learn more!

Contents of this article

1. What is the reason for the sediment in peanut oil?

2. Why does peanut oil foam?

3. Taboos of peanut oil

What is the reason for the sediment in peanut oil?

It is normal for peanut oil to have sediment. After the peanut oil is pressed and then precipitated and bottled, a small amount of particulate matter may remain. Low temperature conditions may also cause sediment in the peanut oil, but it will disappear automatically after the temperature returns to normal. Peanut oil should be stored in a cool and ventilated place, and placed near the radiator when the temperature is lower in winter.

1. Natural precipitation

It is normal for peanut oil to have sediment, because peanut oil is pressed from peanuts, then precipitated and bottled. Generally, the peanut oil at the top is the clearest, and there may be many particles or impurities at the bottom.

2. Low temperature solidification

The sediment in peanut oil may be caused by low-temperature solidification. The composition of peanut oil is not single, so the different substances contained in it will change in a low-temperature environment. Part of the oil may solidify, resulting in sediment or flocs at the bottom.

3. Saving method

Peanut oil should be stored in a dry and cool environment to prevent the oil from oxidizing. Adding seasonings such as pepper and fennel to peanut oil can inhibit bacteria. In winter, it should be placed near the radiator to prevent solidification.

Why does peanut oil foam?

Peanut oil foams because it contains impurities such as oil residue, or because it has not been fully precipitated, or because the moisture content of the peanuts used to extract the oil is too high. If peanut oil foams, you can add green onions or ginger slices before the peanut oil is put into the pot and smokes. You can also heat the peanut oil in the pot at high temperature before using it.

1. Causes of blistering

The foaming of peanut oil may be because the peanut oil is not filtered cleanly and refined well, and it contains some oil residues and impurities, which will cause foaming when used. It may also be that the peanut oil is used soon after it is squeezed and has not been fully precipitated. It may also be because the moisture content of the peanuts used for oil extraction is too high, or the moisture is not completely evaporated during the frying process.

2. Solution

If the peanut oil is foaming, you can add a few scallions or ginger slices to the oil before it smokes. This can effectively prevent the formation of foam when there is a small amount of foam in the peanut oil, but the effect is poor when there is a lot of foam. In addition, you can also put all the squeezed peanut oil into the pot and fry it at high temperature to prevent foaming.

3. Notes

When squeezing peanut oil on a daily basis, be careful to prevent peanut oil splashing and scalding. In addition, the freshly squeezed peanut oil must be fully precipitated so that impurities and oil residues sink to the bottom of the oil. When using it, just take the upper layer of peanut oil. On the market, some self-pressed peanut oil may also be added with industrial defoaming agents, so be careful when purchasing.

Peanut oil taboo

Peanut oil is high in fat and calories. People with obesity, high blood lipids, and fatty liver should not consume it in large quantities as it can easily make the condition worse and cause cardiovascular and cerebrovascular diseases. It should not be used repeatedly as it can easily produce carcinogens and cause gastrointestinal indigestion symptoms, which can have a certain impact on health.

Peanut oil is high in fat and calories, so you must control the amount you use. Especially for people who are obese, have high blood lipids, and fatty liver, it is best not to consume excessive amounts of peanut oil, as this can easily aggravate the symptoms of obesity and may also cause cardiovascular and cerebrovascular diseases, which will have a certain impact on your health.

Peanut oil is also not suitable for repeated use. After being heated at high temperature, peanut oil will produce a small amount of carcinogens, which will also reduce the nutritional value of peanut oil. If you eat fried foods repeatedly, malnutrition may occur at the mildest, and long-term consumption may cause adverse symptoms such as gastrointestinal cancer.

In fact, peanut oil is relatively safe. You can avoid adverse symptoms by controlling the amount and replacing it in time. Adding an appropriate amount of peanut oil before cooking can not only prevent the pan from sticking, but also make the cooked dishes taste better.