Can peanut oil be refrigerated?

Peanut oil has a good taste and high nutritional value. First of all, peanut oil can be placed in the refrigerator, which can play a role in lubricating the intestines. Long-term low-temperature storage can effectively extend the shelf life. However, many people will find some flocs in it after freezing, which will naturally disappear after thawing, so there is no need to worry about this situation. Let me introduce to you the storage method of peanut oil.

Can peanut oil be refrigerated?

Of course, cooking oil can be frozen in the refrigerator. Oils and fats easily oxidize and deteriorate when exposed to oxygen, and high temperatures will accelerate the deterioration process. Therefore, the use of sealed and low-temperature methods can definitely extend the shelf life. Flocs will appear after freezing, but they will disappear after thawing, so it's okay. After thawing, if there is no rancid smell when heating, then there is basically no problem.

Will peanut oil solidify in the refrigerator?

As the temperature drops in winter or when placed in the refrigerator, white or light yellow solids of different shapes will gradually precipitate from the peanut oil, floating in the oil or gradually sinking to the bottom. If the temperature drops further, it will gradually become semi-solidified or even completely solidified.

Reasons for the solidification of peanut oil

1. Normally, when the temperature of peanut oil is continuously below 12°C, it may become semi-solidified, which is a normal inherent characteristic of peanut oil.

2. The fatty acid composition of peanut oil is quite unique. In addition to containing about 80.0% oleic acid and linoleic acid, it also contains a large amount of long-carbon saturated fatty acids (C16:0, C20:0, C22:0, C24:0).

3. Peanut oil is generally semi-solid or solid under low temperatures in winter or after being placed in the refrigerator for a period of time. The solidification temperature and dissolution temperature of peanut oil are higher than those of ordinary vegetable oil. Pure peanut oil will gradually precipitate high-melting-point saturated esters below 12°C, affecting its transparency until it solidifies. It will gradually become clear and transparent at temperatures above 20°C, but this takes some time.

4. Due to the inconsistent ambient temperatures during transportation, storage and dissolution, and the fact that peanut oil is a mixture of triglycerides of mixed fatty acids with different melting points, saturated esters of various shapes may appear in the solidified or dissolved peanut oil, such as flocculent, filamentous, flaky, coral-like, snowflake-like, granular, spherical and other solid substances. The same box of oil may also experience different degrees of solidification and dissolution due to inconsistent local actual temperatures. These are the normal physical properties inherent to peanut oil and can be eaten with confidence.