Hot case is also a domestic electrical appliance and used to keep the food warm for a longer period. Market Potential. Now-a-days domestic electrical appliances are not longer considered as luxury items. Hence, these items are preferred by most of the families.Material is an important factor in selecting the best casserole dish. You'll find stainless steel and copper varieties out there – but I found cast iron, the most traditional of all, to be the superior material, simply because of its heat retention.This stainless-steel casserole is compatible with both gas and induction cook tops. It is suitable for both western and traditional style cooking. The induction safe and hotplate safe base, allows the user to cook multiple dishes.Hot Case is a display counter warmer with auto controlled temperature. Its main use is to keep the food warm and fresh ready to serve. It is based on an heating elements and it comes in different sizes like 3 feet, 5 feet or 8 feet respectively.Stainless steel is one of the most common materials preferred for lunch boxes, followed by food-safe plastic. Further, using an insulated lunch box can be one of the most effective ways to keep food safe until lunchtime.This type of casserole is also great for cooked food because: A stainless steel casserole is very durable and can last for a long time. You can reheat food in the casserole by placing it on a stove, boiler, or in the oven.Stainless steel: Another generally safe option. But experts note that you should ideally refrain from cooking acidic foods, like tomato sauce, in these types of pans. “Stainless steel may have some heavy metals in it, such as nickel and chromium, that can leach, especially when cooking acidic foods,” Minich explains.