How Does Self-heating Food Packaging Work
Self heating food package consists of non-woven cloth bag and heating material, including aluminum powder, Sodium Hydrogen carbonate, Calcium oxide and other additives, the reaction principle is that the heating ingredients reacts with normal temperature water through a thermal reaction for releasing heat, the heated water produces sufficient steam to heat the food to 60-98℃, usually the heating time will be lasting about 15 minutes, this reaction does not contact the food, the nutrition of the food is not damaged and keep the taste and texture of the food.
A convenient method of heating by adding water to the heating agent to generate heat and then fully heating the ingredients in the pre-cooked package and the bottom of the pan.
The heating agent is a bag composed of roasted diatomaceous earth, iron powder, aluminum powder, coke powder, activated carbon, salt, etc. It heats up immediately within 5-10 seconds after being exposed to cold water, and the temperature can rise to about 85℃ for heating meals or cooking food, and it can hold heat for more than 2 hours.
Disposable plastic food container is the main product produced in our mother company Hengfengda, we produce the disposable plastic food package including takeaway box, frozen food box, plastic bowl, food container of self-heating food packaging and starch based or bio-degradable food package