Can watermelon juice be frozen

Watermelon juice can be frozen, and frozen watermelon juice tastes better, which is why many people like to add ice cubes when squeezing watermelon juice in summer. Generally, watermelon juice cannot be frozen and stored for more than one day. It is easy to spoil. Spoiled watermelon juice can cause diarrhea. Therefore, it is best to squeeze watermelon juice and eat it immediately.

How long can watermelon be kept in the refrigerator?

Many people are used to refrigerating watermelons because they cannot finish eating them after cutting them, but how long can they be kept in the refrigerator?

If a watermelon is placed in the refrigerator, bacteria will still grow on its surface. Refrigeration can only inhibit the reproduction of bacteria but cannot freeze the bacteria to death. In addition, watermelon is rich in glucose, fructose and other nutrients, which provide raw materials for the growth and reproduction of bacteria. These pathogenic bacteria often cause food poisoning and diarrhea in humans.

It is best not to keep watermelon in the refrigerator for more than 12 hours, and no longer than 24 hours. In addition, it should be noted that when cutting watermelon, you must first clean the watermelon, knife and cutting board. The watermelon is best eaten immediately after it is cut. If you cannot finish it, cover it with a thin plastic wrap as soon as possible or put it directly in the refrigerator. When you take the watermelon out of the refrigerator to eat, you can first cut off about 1 cm of the surface.

When the temperature is really high, whether it is a whole half of the watermelon or cut into small pieces, if there is no protection, "countless" bacteria will grow within 6 hours. Therefore, the storage time of cut watermelon should not exceed 4 hours. If it is not finished, refrigerate it at low temperature and keep it as intact as possible.

It is best to place the watermelon on the bottom shelf of the refrigerator, where the temperature is about 8-10 degrees Celsius, and the taste is best at this temperature. Do not eat more than 500 grams each time, and eat slowly. People with cavities, tooth allergies that feel sour and painful when exposed to cold, and those with poor gastrointestinal function should not eat cold watermelon.

Studies have shown that the nutritional content of chilled watermelon is far lower than that of watermelon stored at room temperature. The lycopene and beta-carotene content in watermelon at room temperature is 40% and 139% higher than that in iced watermelon. These nutrients are antioxidants with anti-cancer effects.

Therefore, it is best to buy and eat watermelon immediately. If it is warm when you buy it, you might want to turn up the temperature in the refrigerator before refrigerating it. The flavor is best if it is refrigerated within two hours.

Does watermelon need plastic wrap when stored in the refrigerator?

Many people store uneaten watermelon by covering it with plastic wrap and putting it in the refrigerator. But in fact, watermelons stored covered with plastic wrap sometimes have more bacteria than those stored without plastic wrap. Experts explained that the plastic wrap prevented the watermelon from cooling down, creating conditions for bacteria to multiply.

Experts say that watermelons stored in plastic wrap will go bad faster than those without plastic wrap. Because there are bacteria and microorganisms on the surface of the watermelon before it is covered with plastic wrap. If the plastic wrap is not breathable and water-permeable, and the temperature drops slowly, the bacteria will multiply faster, and the food will easily deteriorate after an anaerobic reaction occurs.

It should be noted that some people think that adding an extra layer of plastic wrap can help preserve food. In fact, if the plastic wrap is too thick, not only will it make it difficult for moisture to evaporate, but it will also prevent the carbon dioxide inside from being discharged, which is not conducive to preservation. If the plastic wrap is too thick, the food will not be able to "breathe" oxygen, resulting in anaerobic fermentation and rot.

However, for a refrigerator with mixed food, if there is a huge source of pollution, such as unwashed ingredients, not using plastic wrap will also cause pollution. And watermelon without plastic wrap is easy to transfer flavor, so the healthiest way is to eat it as soon as possible.