What Keeps Food Hot The Longest?
There are several factors that affect how long food stays hot, including the initial temperature of the food, the material of the container, and the surrounding environment. However, insulation is the key factor in keeping food hot the longest. Containers with thick insulation, such as thermoses, can keep food hot for several hours by preventing heat from escaping. Additionally, covering food with a tightly sealed lid or wrap can also help retain heat.