Tips for preserving food in daily life. In life, there are many foods that need to be preserved. If you want to preserve food completely, people need to know some skills to preserve food. Here are some tips for preserving food in daily life!

Tips for keeping food in daily life 1 1, Onions are always perishable? Putting onions in broken stockings (of course, clean them) and hanging them for ventilation can prolong the shelf life for at least 6 months! Cut when you want to use it!

2. Always store dry raw materials in plastic bags? Try to cut off the bottle mouth and bottle cap of Baote bottle and put it on a plastic bag to make it a good sealing cover!

3. If you buy strawberries and don't eat them right away, are you afraid they won't be fresh and rotten? You can soak strawberries in white vinegar: water (1: 10) to keep them fresh! But you still need to clean it before eating.

4. Where should I put the cheese? The correct way is to put cheese in the hottest place in the refrigerator, such as the door frame of the refrigerator or the drawer where vegetables are placed.

5. How to prevent potatoes from sprouting? Just store potatoes and apples together, so that potatoes will not germinate easily!

6. It is more useful to keep food in glass containers than in plastic containers!

7. Is ginger cut too much? Wrap the ginger piece by piece with plastic wrap and freeze it for at least a week! Note that ginger can't be put in the refrigerator!

Bananas always ripen quickly? As long as the banana head is wrapped with plastic wrap, the shelf life of bananas can be extended by 3-5 days!

9. Remember, if there is a broken apple in the fruit basket, you must pick it up quickly, otherwise other fruits in the same fruit basket will start to rot!

10, never put onions and potatoes together again, or they will go bad faster!

1 1, lettuce salad. If you can't finish eating it, you can put paper towels on it, then wrap it with plastic wrap and send it to the refrigerator for cooling. Paper towels will absorb 1 excess water to prevent them from getting wet!

12, immature tomatoes should be put in paper bags or separate shelves until they are ripe; Mature tomatoes should be stored in a cool place to avoid direct sunlight.

13. Do you know how to preserve roasted nuts? Just put it in the refrigerator and ice it! You can also keep their flavor. Before eating, put it on a baking tray and bake it at 350 degrees 15 minutes, which will restore their aroma and color!

14. To preserve asparagus, cut off its stems, then soak it in a bottle filled with water, then put it in a plastic bag and put it in the refrigerator. It can be kept for about a week. Not only asparagus but also celery can be preserved in the same way.

15, if you have vegetables with roots, you can wrap them in aluminum foil and put them in the refrigerator, which will make the freshness and crispness of vegetables last longer! Remember to mark the aluminum foil so that you can remember what food is wrapped inside!

16, buy mushrooms and put them in the refrigerator. It is best to use "paper bags" for packing. If you use plastic bags, the water will not evaporate and the mushrooms will go bad faster!

17. Do I have to use onions every time to cut it right away? You can cut a certain amount first, put it in a bottle and freeze it in the refrigerator! Just pour out the amount to be used when necessary.

18, cut cheese always hardens inside? As long as you put a little cream on the cut surface, it will not harden the inside of the cheese!

19. I don't know how to preserve the coriander, nine-story pagoda and leek I bought from the market. Put it in a plastic container, cover it with a plastic bag and keep it fresh in the refrigerator!

Food preservation method

Food spoilage is very common in life, and it also brings us a lot of trouble. If any kind of food won't go bad, it will be much safer to eat. Therefore, the method of food preservation is particularly important.

1, stored at low temperature

Cryopreservation can inhibit the reproduction of organisms and slow down the spoilage of food, but it can't completely kill microorganisms. Pay attention to temperature control when storing at low temperature. Generally speaking, the lower the temperature, the longer the storage time.

2, high temperature sterilization

After high temperature treatment, food can kill most bacteria and enzymes. If the food is sealed, vacuum and quickly cooled, it can effectively delay the deterioration of food and prolong the storage time. For example, we often drink bagged pure milk, beer, pasteurized milk and so on.

3. Dehydration and drying

Dehydration and drying is to reduce the moisture in food below a certain limit, so that microorganisms are not easy to grow and reproduce, and the activity of enzymes is inhibited. The commonly used dehydration methods in the family include sun exposure, drying in the shade, heating evaporation or freeze drying. It is worth reminding that although the method of sun exposure is the simplest, it is also the most vitamin loss.

Step 4 increase osmotic pressure

The name seems difficult to understand, but in fact most people have used this method. For example, marinate food with salt or sugar. When the concentration of salt is 8%- 10%, it can inhibit the reproduction of most microorganisms, but it can't completely kill them. To kill microorganisms, the concentration of salt should be controlled at15%-20%; The sugar concentration of sugar-coated foods should be controlled at 60%-65% to inhibit the proliferation of microorganisms. Pay attention to sealing and moistureproof when storing. Common candied foods include candied fruit, candied fruit and jam.

5, improve the hydrogen ion concentration

Most bacteria can't grow and reproduce normally in an environment with pH below 4.5, and corrosion can be prevented by increasing the concentration of hydrogen ions. Vinegar pickling is adding vinegar to food, which is often used in fruits and vegetables, such as pickled cucumber, sauerkraut, sour bamboo shoots and so on.

Tips for preserving food in daily life 2 1. Keep Chinese cabbage and cabbage fresh.

When storing cabbage and cabbage, the biggest mistake is to store it in plastic bags. What you should do is put the cabbage directly in the refrigerator drawer, not in the plastic bag. In this way, it can keep crisp and fresh, even up to 2 weeks.

Step 2 store onions

It's not a good idea to store onions in the refrigerator because of the humidity. Besides, all refrigerators and other products may smell like onions because of this behavior. The correct way is to store them in a barbed wire basket, because it is well ventilated. In this way, they can keep fresh for several months. Don't put them with potatoes, because they will go bad faster.

3. Keep the nutrition of carrots.

If you buy carrots with stems, cut them off before storage. The stem will absorb all the necessary nutrients and water. Without stems, your carrots will stay fresh and nutritious for a longer time. Similarly, you should not put them in plastic bags, but in the refrigerator drawer.

Step 4 store fruit

If you wash blueberries and blackberries and put them in plastic or glass containers, they will start to go bad even in the refrigerator. So, unless you want to eat, you'd better avoid cleaning. Just store them in a container with good ventilation.

Step 5 keep mushrooms fresh

If you buy mushrooms in plastic containers, please take them out of the container at once. Wash away the residual dirt and open it to dry. After drying, wrap it in a paper towel and put it in a paper bag. You can keep them in the refrigerator until you need them.

6. Don't freeze, but keep the meat fresh.

If you don't want to freeze meat and plan to use it in the next few days, there is a simple solution. Put a piece of meat in a plastic container and fill it with oil. Oil will make the meat better preserved for you and make it more delicious. You can take this opportunity to pickle and add the sauce you need. But this can only keep the meat fresh for 3 days at most, and it is not suitable for minced meat.

7. Lemons can be kept fresh for one month.

Lemons should be put in plastic bags in the refrigerator. In this way, they can keep fresh for a month. Just don't fold it. Because they still need enough space to circulate the air. In addition, if it is kept at room temperature, it can be kept fresh for a week.

8. Bury leeks in the soil

Burying leeks in the soil is the best way to keep them fresh, which can prevent them from taking root. If there is no garden to bury, you can use flowerpots instead. Just make sure that the first layer is cleaned and peeled off before use. This technology can keep leeks fresh for several months. Besides, you should store leeks buried in the soil in the shade and water the soil from time to time.

9. Keep bananas fresh with plastic wrap.

Wrapping banana stems with plastic wrap can keep bananas fresh. It sounds too simple, but it is a practical skill. In this way, the texture of bananas is not easy to soften or turn black, because the ripening process will be greatly slowed down. Just remember to wrap the stems when you eat bananas.