Will the rice in the thermos go bad at 18 degrees?

18 degrees, the food in the thermos will go bad. According to relevant public information, the optimum temperature for storing rice is 3 to 5 degrees, and in the weather of 18 degrees, the rice in the thermos will go bad. A thermos cup is generally a water container and a vacuum layer made of ceramics or stainless steel. The top of the thermos cup is covered and sealed tightly. Vacuum insulation layer can delay the heat dissipation of water and other liquids in it, thus achieving the purpose of insulation.