8 effective ways to check the expiration date of foods

Articles Aug 10, 2020 00:33

Food spoilage is mainly the result of a mutual interaction between two factors, the nature of the food itself and the external environment.

If you keep the following rules in mind, you can tell a food is fresh or old just by looking at the food .

8 tips to recognize expired foods

1. Leftovers in the refrigerator

8 effective ways to check the expiration date of foods

Many people have a habit of storing leftovers in the refrigerator for the day together and eating them the next day. However, this is not the best way to preserve food because not all foods are resistant to the growth of bacteria and mold when stored in the refrigerator.

If the refrigerator does not have enough cold temperature, it will not be able to store food for more than 1 day, or the refrigerator contains too much food, resulting in lower quality.

When you notice that food has an unusual smell, stale vegetables, and raw meat thawed is viscous and has an unusual odor, it is a sign that the food has been rancid and should not be used.

2. Eggs

8 effective ways to check the expiration date of foods

Eggs can be stored in the refrigerator for 3 weeks and in the freezer for 1 year. But if you are wondering whether the home egg is old or new, get a full glass of water or a bowl of water and put the egg in there.

If the egg sinks to the bottom, it is still fine to use but if the egg floats, the eggs are spoiled and out of date.

3. Yogurt

When unopened, yogurt can be stored for 1 week in the refrigerator and 5 days if opened, and you should pay attention to the expiry date shown on the packaging.

8 effective ways to check the expiration date of foods

If you open the yogurt and notice signs of mold or color changes, immediately throw it in the trash.

4. Red meat

The shelf life for red meat is about 1-3 days if it's raw and 7-10 days if it's cooked. For meat purchased in the supermarket, throw it out immediately if the expired meat is printed on the package to avoid food poisoning.

8 effective ways to check the expiration date of foods

Red meats show signs of spoilage often have a distinct, pungent odor and a bad smell.

Green or brownish green meat is generally unsafe to eat, although browning without greening is not necessarily a sign of rotting.

5. Poultry meat

Fresh poultry, light pink in color, and cooked poultry should be white. When the color of the meat turns gray and has a strong odor it is likely that the food is spoiled and cannot be used anymore.

8 effective ways to check the expiration date of foods

6. Watermelon

On the outside, watermelons may differ depending on the variety, but on the inside, melons should always be pink or magenta.

If the melon is removed and the red part is darker than usual, and the sweetness is not natural, the melon is likely to be booted. The melon has a pale white streak and slightly viscous, then the melon will rot. New, delicious melons will always be fragrant, fresh and very sweet, with hard melon rind and without pitting holes.

8 effective ways to check the expiration date of foods

7. Fresh milk

For unopened box of milk, you can still use it within 1 week from the expiration date indicated on the carton. This applies only to 1%, 2% and skim milk.

With fresh milk, depending on the type of milk, you must use it in 24 hours or 2-3 days, store them in the refrigerator at a temperature of about 4.4 degrees Celsius. Don't keep boxes of milk on the refrigerator door because it has an unstable temperature, not suitable for milk storage.

8 effective ways to check the expiration date of foods

The rotten milk will be slightly viscous and has a sour taste that is no longer as fragrant as fresh milk.

How to preserve food and avoid spoilage

For fresh meat and fish, after being washed, divided into bite-sized portions and put in sealed boxes or sealed nylon bags before putting them in the freezer of the refrigerator for storage... Frozen foods. cold, before using about 4-5 hours should put down in a cool compartment to thaw. Avoid defrosting food multiple times and limit microwave thawing as this will lose nutrients.

Fresh vegetables and fruits should be stored in the refrigerator's cool compartment, possibly for several days or a week depending on the type. It should be noted, do not put vegetables and fruits in the freezer compartment of the refrigerator to avoid crushing vegetables due to too cold temperatures.

If you want to preserve fresh vegetables for a long time, after removing deep leaves, crushed leaves, roots, keep the vegetables dry and put in a foam bag, tie the seal and then put it in the cooler compartment of the refrigerator. This way will help reduce the amount of water evaporation, avoid wilting quickly when stored in the refrigerator.

In addition, cooked food must be allowed to cool completely, cover tightly before placing in the refrigerator. Raw foods and cooked foods should be stored in separate boxes, absolutely avoiding storing these two foods together without being covered. Keeping food sealed will help prevent the food from drying out, smelling and contaminated with microorganisms.

Watch next: 10 Foods You SHOULD Buy Frozen instead of Fresh

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