Canned sweet corn

How can canned food achieve the effect of long-term storage of food, we must first know what causes the spoilage of food. Microorganisms will breed and multiply in food.

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How can canned food achieve the effect of long-term storage of food, we must first know what causes the spoilage of food. Microorganisms will breed and multiply in food. They continuously decompose the nutrients in the food, so that the composition of the food changes and the food deteriorates. Therefore, during the production process, you can keep some sugar water or drain the water in the can, and add industry The additives specified in the standard are used for preservation and preservation. Therefore, canning generally works together to prevent food spoilage in three ways:

1. Sterilization Whether it is food or canned food, it needs to be sterilized. After the bacteria and bacterial spores are eliminated, there will be no bacterial reproduction. However, it is unlikely that they will be completely eliminated, and what can be done is basic sterilization, so as to prolong the preservation time of food as much as possible.

2. There are also a large number of bacteria and bacterial spores in the dust and so on in the airtight air. The spores of bacteria are like tree seeds, which are very durable and can float in the wind. So the cans are all vacuum sealed.

3. Hygienic standards for preservatives and food additives stipulate that no additives may be added to canned fruit. However, some low-quality cans are added with synthetic pigments such as potassium sorbate, carmine, and tartrazine, and they also use sweeteners, industrial-grade caustic soda, and industrial-grade hydrogen peroxide to "bath" coconut fruit. When choosing canned fruit, first look at the appearance of the pulp of the canned fruit. For normal canned yellow peach fruit, the color of the product should be uneven, with golden yellow and a little cyan. The pulp of the fake canned yellow peach is exactly the same, and the color looks good. The soup of normal canned yellow peach should be colorless, while the canned canned. The choice of canned strawberries is to look at the soup first. If the soup is very red, it is dyed, if the soup is slightly pink it is normal. At the same time, dyed canned strawberries, whose pulp is immature, will be relatively small. Although homemade canned fruit can be used with confidence, it should not be stored for a long time, so it is best to consume it in a short time. Although canned fruit is convenient to eat, the nutrient content of the fruit is partially lost during the production process, and it cannot fully provide trace elements that are beneficial to the human body.

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Canned sweet corn

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