Should the refrigerant be placed on top or under the food insulated box? Employees reveal the most effective location for insured food

When you go out for daily food or condom, the weather is most afraid of food loss. Therefore, it is best to put an ice bag to keep the cold to prevent the food from getting better. Businesses also recommend that the ice bag be placed above the food, which has the best cold-keeping effect.
If it is often stored for more than 1 to 2 hours, the food will easily changeOften we usually take food or leave the door, and we are most afraid of food loss. For example, many office workers take food for lunch, but sometimes when they have to eat at noon, they find that the food inside is overflowing. Because food is easily changed as long as it is placed at a normal temperature for more than 1 to 2 hours, and it produces problems such as toxins and bacterial breeding. The food changes faster when the weather is hot. Therefore, it is best to put the food in a cold-keeping bag and put a cold-proofing agent or ice pack (ice box) inside to keep the food cold to prevent the food from getting better.
And some people are accustomed to put ice packs/cold refrigerants under the food box, some people put them on the side, and some people put them on it, but is there any difference in where the ice packs are placed? In fact, the location of the ice bag will really affect the cooling effect.
How to make the cold-keeping bag have the best cooling effect?According to the Japanese media "grapee", the ice pack production operator pointed out that if only one ice pack/refrigerant is used, it is recommended to put it on the food box. Because the flow of cold air is from top to bottom, putting an ice pack on it can best cool the food and make the food evenly cold. It would be better if you can put more than 1 ice bag. In addition to putting it on top, the rest should be placed on the side.
If the bag still has space, it is recommended to put a towel inside so that the cold air will not run out, which can make the refrigeration environment more stable.
In addition, if you remember, you can also place the cold storage bag and refrigeration bag in the refrigerator in advance, and then take out the food from the refrigerator to pack the food when you are about to use it. This can keep the refrigeration environment in the bag for longer.
There are many ingredients for exposed-built food. Raw and cooked food is divided into different ice buckets or temperature-keeping bags.Nowadays, many people like to sell it, and there are more foods needed for exposed-built food, including raw food, cooked food, fruits and vegetables. The Food and Drug Administration reminds that all kinds of raw meat, seafood, milk, as well as cut fruits and vegetables or cooked foods need to be stored at low temperature. It is recommended that when the exposed operation, small refrigerators, ice buckets or temperature bags should be prepared to store ingredients separately. Raw and cooked foods should be stored separately, because raw foods may contain microorganisms or parasitic cervix. If cooked foods and raw foods are stored together, they may be contaminated. If you only use a heat-dissipating bag or ice bucket, it is not recommended to bring freshness.
In addition, ingredients that are prone to water should be placed on the bottom layer, dry ingredients should be placed on the top layer, and ice buckets or refrigerators should be placed in the sun, and the number of times they are opened should be reduced.