Generally, in supermarkets now, cooking oil comes in a 5L barrel, which is more cost-effective. There are also 1L barrels, which are relatively more expensive. Most families also buy a barrel. However, this 5L barrel of oil can be consumed by an average family for 1 to 2 months. If there are few people in the family or people who do not cook much, can it be consumed for half a year?

According to the provisions of my country's "General Standard for Food Labeling" : The shelf life of 18 months on the edible oil package refers to the period of time it can be used when unopened under specified storage conditions. Once the product is opened, the shelf life of the edible oil is not the same as the 18 months on the trademark. It’s related.

Factors that affect the shelf life of edible oil

1. The most important thing is the type of oil

Peanut oil, corn oil, etc. contain more omega-6, while vegetable oil Seed oils, etc. contain more omega-9. Generally, cooking oils containing more omega-9 are more stable than cooking oils containing omega-3/6. Therefore, cooking oil containing omega-3/6 is not suitable for high-temperature cooking and is best served cold.

2. Antioxidants added to the oil

Edible oil without antioxidants will generally reach the critical point of deterioration 2 months after opening. In a few days, the characteristic "harratic smell" of oil rancidity will appear.

Most edible oils on the market have added antioxidants, but it is still recommended that you consume them within 3 months, especially in summer.

3. Storage environment.

Principles for preserving edible oil:

Edible vegetable oil has four fears: one is fear of direct light, the other is fear of air, the third is fear of high temperature, and the fourth is fear of water intrusion.

Therefore, edible oil should be stored away from light, sealed, low temperature, and waterproof.

If you don’t usually cook, you can just buy a 1L bucket, which is less likely to be wasted.

The secret of oil usage habits?

Peanut oil is the most commonly used oil in Chinese households. More than half of users choose peanut oil, followed by corn oil.

Residents’ diet has long since shifted from “eating full” to “eating healthy”, and the same goes for the choice of oil products. The number of people who chose olive oil reached 35.82, which is the same number as corn oil.

Tips for healthy oil use

● The "Dietary Guidelines for Chinese Residents (2016)" recommends that the total amount of cooking oil consumed by adults should not exceed 30 grams per day

● Eat a variety of vegetable oils and reduce the intake of animal oils

● Olive oil (virgin) and flaxseed oil are not resistant to high temperatures and are recommended for cold use; corn oil, sunflower seed oil, Soybean oil is also relatively heat-resistant. It is fine for ordinary cooking, but high-temperature stir-frying and frying are not recommended

●? Saturated fatty acid oils are suitable for frying, such as coconut oil and palm oil (not well-known) (Good), various animal oils; however, it is still recommended to eat as little fried food as possible

● The dietary structure of ordinary Chinese people should increase the intake of Omega-3 polyunsaturated fatty acids

No Introduction to Doctor of Pharmacy

Ph.D., practicing pharmacist, senior nutritionist, with 11 years of experience in medication guidance, nutritional consultation and health management. No medicine, no medicine, advocate healthy life, don’t get sick, don’t take medicine!