How to deal with expired peanut oil

Generally, the cooking oil we buy has a shelf life. If it is not consumed within this shelf life, people will throw it away directly because they are worried that eating expired peanut oil will cause some burden to the body. First of all, everyone needs to pay attention that if you want to dispose of expired peanut oil, you can choose to use it as lubricating oil for flowers, so you don’t have to throw it away directly.

Peanut oil expires, which is a very common thing in life

Peanut oil expired

Many foods are thrown away and wasted after their expiration date. In fact, many expired foods are still worth recycling. Make full use of them and be an environmental guardian. Here we first look at what happens when peanut oil expires and what we should do.

Peanut oil is prone to becoming oily residue after being stored for a long time, which is a sign of oil rancidity. Peanut oil contains a component called linoleic acid, which easily reacts chemically with oxygen in the air. This phenomenon is called "oil oxidation", which will generate small molecular aldehydes, ketones, carboxylic acids and other oxides, peroxides and other decomposition products with special odors. After heating, the oil smoke is thick and choking, and it is easy to cause poisoning after consumption.

For health reasons, expired peanut oil can be used for other purposes.

1. Apply to hands. For dry and cracked skin, soak them in oil. It will improve the condition and make your fingertips and nails more transparent and stronger.

2. For growing flowers, expired peanut oil can be used to grow Clivia.

3. As lubricant, peanut oil can be used as lubricant in bicycle chains, bearings, door locks, etc. However, it cannot be used as a special lubricant.

4. To make soap, add alkali and rice in a certain proportion to make hand-washing soap.

Can you still eat expired peanut oil?

Whether it is peanut oil or other vegetable oils, especially the tertiary oil we usually eat, it contains some plant residues brought in during oil pressing. These residues cannot be filtered and we cannot even see them with the naked eye. These may lead to rancidity of oils.

Edible oil also contains a component called linoleic acid, which easily reacts with oxygen in the air and hydrolyzes to produce small molecular aldehydes, ketones, carboxylic acids and other oxides, peroxides and other decomposition products with special smells. This phenomenon is called the acidification reaction of oil.

Edible oil also contains a component called linoleic acid

An effective way to identify expired cooking oil is that the cooking oil has a rancid smell, which is especially obvious when heated. It also produces a lot of smoke and is choking. It contains decomposition products such as glycidaldehyde, which can easily cause poisoning after consumption. Can you still eat expired peanut oil? So it’s best not to eat expired peanut oil.

The harm of consuming expired peanut oil

Eating expired peanut oil will first irritate our gastrointestinal tract, causing symptoms such as nausea, vomiting, diarrhea, and stomach pain.

Toxic substances such as peroxides produced by spoiled oils convert hemoglobin ferrous iron into hemoglobin ferric iron. The toxic effect causes hemoglobin to lose its oxygen-carrying function, causing the body to suffer from hypoxia and cyanosis of the mucous membranes and skin. Generally, if this situation occurs, you need to go to the hospital for gastric lavage in time.