Why does peanut oil foam?

Everyone knows that cooking requires oil. In Europe, people like to use olive oil for cooking, but because it is relatively expensive, many Chinese people prefer to use pure vegetable peanut oil. Peanut oil is rich in nutrients and is very suitable for people to eat. However, sometimes people report that the oil foams when cooking, causing them to suspect that the oil they bought is impure. So why does peanut oil foam? Today I will show you

When people use peanut oil for cooking, they occasionally encounter the phenomenon of foaming. Some say that the oil is adulterated, or some say that the oil contains toxins. This statement is unscientific. Why does peanut oil foam?

Let's look at the reasons why peanut oil foams:

1. Peanut oil is squeezed and consumed directly without filtering, and the oil contains impurities

2. The bottom oil at the bottom of the oil barrel contains a small amount of sediment after sedimentation, which does not affect the use

3. During the pressing process, the water content of peanuts is too high, resulting in a relatively high water content in the oil, which will easily foam once heated.

Solution:

1. Put a few green onions in the oil before it starts to smoke.

2. Heat the oil at high temperature to remove the moisture inside, and then use it after it settles.

3. There is something called defoaming agent, which is not recommended. Try not to use such chemicals on food because these chemicals may not be suitable for daily life but for industrial products.

Why some oils are darker:

The fatty acid composition of peanut oil is quite unique, so it is generally in a semi-solid turbid state in winter or when refrigerated in the refrigerator. Its turbidity point is 5°C, which is higher than that of ordinary vegetable oils. Sometimes the color of peanut oil becomes darker when heated. This is because the peanut oil is hot-pressed and over-fried during the frying process before pressing.

After the above introduction, do you instantly understand the reason why peanut oil foams? The foaming of peanut oil does not affect its use so you can rest assured. However, in recent years everyone has advocated a diet of less oil and less salt, so even if there is no problem with the oil, you should still eat less.