Self-heating lunch box principle

Self-heating lunch boxes are very convenient to use, especially suitable for use outdoors. They do not require some heating equipment to heat the food in the lunch box well. After coming into contact with water, they can quickly heat up in 3 to 5 seconds, and the temperature can reach up to 150 degrees. Moreover, its insulation time is relatively long, which can reach about three hours, and its shelf life is also the same long.

Self-heating lunch box principle

Traditional convenience foods need to be soaked in boiling water before they can be eaten. Some special groups, such as those who are exploring nature, traveling, in the military, and police officers on duty, cannot eat them without boiling water. Self-heating rice does not require boiling water or electricity. Just tear open the outer packaging and pour the purified water bag inside onto the heating bag. The water and heating bag will automatically mix and heat up, steaming the rice and dishes. It can be eaten in 8-15 minutes.

Deciphering the ingredients of the self-heating rice heating bag: A multi-purpose self-heating bag was invented, which is mainly composed of roasted diatomaceous earth, iron powder, aluminum powder, coke powder, activated carbon and salt. It can heat up to 60℃ after rubbing, and can be used for winter heating and medical hot compresses. By adding quicklime, sodium carbonate and water, the temperature can be raised to 120℃ to heat meals or cook food. The temperature can be maintained for 20 minutes and then dropped to 100℃, and then dropped to 60℃ after 60 minutes. The material used for winter heating and hot compress can be used repeatedly, and after use, it can still be mixed with quicklime and sodium carbonate, and then added with water to increase the temperature, so as to be used for heating food.

Long shelf life

Instant rice is a food that is not easy to store. At present, the shelf life of civilian fast food is generally around 6 months. The deterioration of instant rice is mainly caused by the oil in the dry rice grains, which will produce a rancid smell after being stored for a long time. In order to solve the problem of preservation of instant rice, researchers from Huangshan Meixing Technology Food Company conducted repeated experiments during the development of instant rice. They set up numerous checkpoints like a sluice gate and finally achieved the goal of long-term storage for two years.