Heat, Water And Chemical Reaction in the heat warming agent (edyikkusu-pa-hi-to) to your in the water in the bag. Thats right, you can fire and electrical and it can be preserved without heating up your food or water safe & easy to use. Compound 1 PCs heat with retorts food heated to up to 2 bags at once attached. Also includes CC be your drinking water is about 85 °C in warm water, cup noodles used in warm water as well. Heated bag size: 270 x 310 x gusset 110 mm release agent (G x 4 PCs)