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How to use hot pot heating packs? Are food-specific heating packs toxic?

1 How to use a hot pot heating pack

The main substances contained in a hot pot heating pack are quicklime, activated carbon, iron powder, aluminum powder, etc. It will release a lot of heat to heat food.

If it is a self-heating hot pot, it is generally divided into an upper structure and a lower structure, and the heating package is placed in the lower structure. Generally, you only need to disassemble the heating package and put it inside, and then pour it. Pour in an appropriate amount of water so that it can generate heat and generate steam. Finally, place the food that needs to be heated on top, close the lid and start heating. 2 Are food-specific heating packs toxic?

Generally not.

If it is a food-specific heating pack produced by a regular manufacturer, it is non-toxic and will not cause harm to the human body when used in the correct method, so there is no need to worry too much.

However, because the heating pack will produce a large amount of high-temperature water vapor during the heating process, you need to pay attention to safety when using it. After placing the heating pack, you need to put the food on it immediately, otherwise there will be too much steam. It is possible to burn the skin sometimes. If you are not skilled in the operation, it is best to wear heat-resistant gloves. 3 Why is the hot pot heating package not hot?

1. No water is added: The main ingredient in the hot pot heating package is quicklime. This material will generate hydrated lime after contact with water and release a lot of heat. However, It will not generate heat when it is not in contact with water.

2. Poor quality: Generally, some other substances are added to hot pot heating bags, such as sodium carbonate, calcium chloride and other salts, to absorb the trace moisture that penetrates into the package. If the quality of the heating bag is not good, Or if left for too long, quicklime will gradually lose its effect and no longer generate heat. 4 Do you need to take out the heating pack after 15 minutes?

No.

The heating pack will start to heat up in about 5-10 seconds when it comes into contact with water. The temperature can be as high as 150 degrees Celsius and lasts for about 15-20 minutes. Then it will gradually lower the temperature. After 60 minutes, it will be about Down to 60 degrees Celsius, the entire heating process lasts about 120 minutes.

Therefore, there is no need to take out the heating pack when it is heated for about 15 minutes. The temperature at this time is relatively high. If you touch it directly with your hands, you will be burned. Place it directly in the lower structure. Just heat it slowly, and it can also play a role in keeping warm.