What is a mini hand warmer? What are the advantages of mini hand warmers?

In winter, many girls are prone to cold hands and feet. At this time, it is very important to have a hand warmer that is convenient to carry around. Next, Bian Xiao will tell you what a mini hand warmer is and what its advantages are.

1. What is a mini hand warmer?

1. Hand warmers are made of a bag of liquid and two pieces of metal. Gently bend the metal sheet in the bag to make the liquid crystal and move evenly. The temperature can reach about 50℃ and last about 1 hour. Hand warmers are no longer hot. Put the crystals in hot water until they dissolve into liquid. After cooling, they can be reused.

2. The liquid in the hand warmer is a supersaturated solution, and the specific composition is unknown. When pulling metal sheet, the unstable and stable state of supersaturated solution is actually eliminated by friction, so that the solution forms tiny crystal nuclei on the surface of metal sheet and grows rapidly, consuming supersaturated solute in the solution until the solution enters a stable saturated state. This process is exothermic. This is the principle of hand warmer.

3. After knowing the principle of hand warmers, many people will ask how to exhaust the hand warmers. Let's take a look at the detailed operation steps. There is a plastic hole next to the charging port of the hand warmer, and there is a piston inside. Pull out the piston, pull it out carefully, and then squeeze it slowly until all the gas is exhausted.

Second, what are the advantages of mini hand warmers?

1. It can be recycled. As long as it is electrified for about 7- 10 minutes, it can be kept warm for several hours (depending on the brand and model).

2. Unique hyperthermia function. Heating in winter, this product can be used to warm hands, feet, neck, body and quilt at low ambient temperature; In addition, hot compress on relevant parts of the product can relieve fatigue, backache, abdominal pain, arthritis pain, scapulohumeral periarthritis and sciatica.

3. Beautiful appearance and fast charging. Suitable for living at home, working and going out, with high-efficiency heating agent inside and lasting heat preservation at high temperature. It's really a good gift for relatives and friends, home travel.

4. Using USB socket, charging is more convenient and exquisite.

The above is the introduction of mini hand warmers. Girls who are prone to cold hands and feet can consider buying it! I hope the above content will be helpful to everyone.