Food containers are common products used to preserve and store food. Despite the numerous food containers available in the market, there are limited options of food containers with reheat function. An insulated food container is an insulating storage for food that is able to keep food hot and fresh. Insulated food containers are common among people of all ages and are regularly used to pack lunch from home. Insulated food containers are used to keep the stored food in hot/cold condition for a longer duration. Usually, from preparation of food to actual consumption, the time taken is around five to six hours. Food containers are available in different materials and colors, and in a variety of sizes such as rectangular, square, and round. Demand from sophisticated consumers for convenient packaging is increasing rapidly as it is easy to store, carry, and allows ready consumption of food. Therefore, it is crucial for food container manufacturers to meet the changing consumer preferences....