Fresh food preservation

"Eat" is very important to the Chinese people. Whether it is "flying in the sky" or "running on the ground", the Chinese people can figure out the various dishes between "fried and boiled". Compared with "cooking food," the Chinese people's awareness of "storing food" can be dwarfed by many people in other countries. In this issue, Xiao Bian will open the secret of food preservation for you.

For most of today's busy white-collar families, going to the supermarket for a big purchase in a week and then slowly storing food in the refrigerator has become a law of life, and buying fresh food and eating now becomes an unattainable luxury. “How to keep food fresh for a long time?” I believe every housewife who pays attention to the quality of life cannot ignore this issue.

The real meaning of "preservation"

Explain from a professional point of view, the word “preservation” is very knowledgeable: the word “protect” means all technical measures or processes that maintain its fresh state during the process of food storage; and the word “fresh” represents the specific state of the fresh state. The content is the external shape and color, fragrance, and taste of fruits and vegetables.

It has been confirmed that the main factors that can affect the “preservation life” of fruits and vegetables are “temperature” and “oxygen”. In fact, after the fruits and vegetables are completely detached from the mother, all sources of nutrition have been cut off, and they are in the process of constantly consuming limited nutrients in the body. All effective measures for keeping freshness are to minimize the consumption of fruits and vegetables themselves. To be sure, the hypoxic environment can inhibit the respiration of fruits and vegetables and slow the evaporation of surface water. Less consumption, the "fresh life" will naturally be extended!

So, what are the current coups for food preservation? What about the effect?

The ancestral law of the old ancestors "dried and preserved"

In China, our old ancestors have been studying how to store foods and can extend their food life. The oldest method is to dry the food or salt it with sugar or salt. The principle of "drying, pickling" is that an anhydrous environment can slow or prevent the growth of bacteria.

Although this method can slow food decay to a certain extent, it is almost impossible to preserve the nutrition and the original flavor of the food.

The fridge is a safe?

Most Chinese people's "food storage" method is a refrigerator to get everything: raw, cooked, and the rest of the food is put in the refrigerator. They think that such food will not rot and deteriorate. Absolutely Insurance. In fact, the refrigerator is definitely not a safe! And no matter how cluttered the refrigerator is, the smell is tangy. What is important is that the refrigerator is quietly “stuck” away the nutrition of food.

We all know that the nutritional value of food lies not only in its inherent growth factors, but also in the preservation environment of the day after tomorrow. The control range of the preservation temperature of the refrigerator is large, which affects the adaptability of different foods to the temperature, and it cannot guarantee that all the foods are in the best preservation state. For example, the optimum storage temperature for apples is 0 to 1 degrees Celsius, and for cucumbers it is 7 to 8 degrees Celsius. If you store both types of food directly in the refrigerator at the same time, you will “disregard each other.” What's even more frightening is that low temperature does not kill bacteria. Microorganisms in the refrigerator will become active once the temperature conditions are right. Untreated leftovers will be contaminated by pathogenic bacteria and cause food poisoning.

Lightweight and convenient plastic wrap and fresh-keeping bag

In order to overcome the drawbacks of freezing the refrigerator and destroying delicious foods, people have begun to use plastic wrap and fresh-keeping bags to preserve foods. After the food is packaged in lightweight and easy-to-use plastic wrap and fresh-keeping bags, the moisture content of the food evaporates. The freshness of the food is prolonged several times longer than that stored in the refrigerator without treatment, and the odor of food can be solved to some extent. The problem.

However, after a period of use, we will find that the durability and tightness of cling film and fresh-keeping bags are unsatisfactory, and foods with strong taste still pollute the environment in the refrigerator. The foods packed with them are still cluttered up in the refrigerator, and cling film or storage bags are non-degradable non-environmental products.

Traditional connection type crisper

Traditionally-connected crispers have now become popular on the market. The preservation function of the crisper is more advanced than the cling film and the fresh-keeping bag, and the odor is basically solved and the preservation time is longer.

However, this crisper also has a problem in design: if the lid and the box body are in close contact with each other, although the sealing performance is greatly enhanced, the switch is very difficult and is not suitable for use by the elderly and children; however, if the opening and closing is easy, the lid must be adjusted. Loose, this will greatly reduce the sealing performance of the crisper.

New concept crisper

In order to solve the problem of the conventional connection type crisper, the latest type of crisper has systematically studied the problems existing in the conventional crisper, and has introduced a new product with a double locking system.

This product, known as Lock & Lock, is a new concept crisper developed by Korea's HANACOBI. The Lock & Lock utilizes a four-sided combination to close the box surface. The pressure around it is even and can provide 100% sealing. Experiments have shown that the LOCK & LOCK fresh-keeping container can maintain the freshness of food more than 3 times that of similar products. Moreover, the LOCK&LOCK brand, which is based on the concept of “saving time, space, and money”, currently has more than 150 types of crisper types, which can solve various food collections.