The expiry date is one of the most important information that consumers pay attention when buying food but many people consider it a safe assurance.If not expired, the food is safe.This is really a misunderstanding of the shelf life.

The expiry date is the time when the pre -packaged food maintains the quality under the storage conditions indicated on the label.Shelf life includes storage conditions and storage time, these two are inseparable.Storage conditions usually include room temperature, lighting, cooling, frozen ... The expiry date is only valid under the storage conditions indicated on the label.If the product storage conditions do not meet the regulations, the shelf life of food may be shortened, even losing safety.

Here are 6 opened foods that are shortened by 10 times, you should pay attention when using.

1. Spices

The expiry date of processed spices is not opened 1-2 years.After opening, if placed in the kitchen has high temperatures or even next to the gas stove, the expiry date will be shortened and easily damaged.Vegetable oil, soy sauce and vinegar can only be stored for 2-3 months after opening.Peanut butter, salad sauce, tomato sauce and other foods can only be stored for 1-3 months after opening.

Preventy spices should be stored in the refrigerator to help extend their expiry date.

2. Cooking oil

In the state of not open, the expiry date of cooking oil is usually 18 months.After opening, the expiry date of cooking oil will be greatly shortened.If opened too long and does not cover, the oil will react with oxygen in the air, causing oxidation, can cause nausea, vomiting, diarrhea ... after eating, maybe even dangerousto life in severe cases.

Therefore, using the cooking oil with the lid for 3 months, choose to buy the appropriate oil bottle so that even this time.

3. Rice

The unpopular use of rice is usually 1-2 years.If well stored after opening the package, it can be stored for 1 year.However, if it is improperly preserved, rice is prone to mold and produce insects.

Rice should be removed from the outer packaging bag and placed in another container that can be sealed and placed in a cool, dry environment.

4.

Wheat flour, baking flour ... easy to absorb moisture, clump, mold after opening.Shelf life and storage are similar to rice.

Milk powder has high sugar content and fine particles that are more likely to absorb moisture and clump after opening.Should be consumed within a month.Milk powder after removing must be tightly closed and stored in a dark, dry, cool place.

5. Nuts

The expiry date of the particle products in different packages is also different, usually 6-12 months.However, due to the high fat content, the seeds after opening the lid if not stored properly will be susceptible to moisture, oxidation, producing unpleasant odors and even toxic substances.

Therefore, it is best to eat nuts in a short time.If you have an unpleasant odor, you should not eat.

6. Sweet drinks

Carbonated drinks can be stored in the refrigerator for 3-5 days after opening and tightly covering.Highly acidic vegetable drinks such as thorny apples and citrus juice can be stored in the refrigerator for 2-3 days without causing serious problems.Peach juice, pear juice ... have low acidity with relatively short shelf life after opening.

To ensure nutrition and safety, drink drinks within 24 hours after opening.

Source and photo: QQ, Eat This