Thermos Lunch

Thermos lunch containers commonly called thermos lunch boxes are generally made up of plastic containers from outside, but internally they are made up of glass. Thermos lunch boxes are used to keep hot food stuffs hot and cold food stuffs in cold condition. In common words, thermos lunch boxes are used to thermally isolate the food from outside environment. Another common term for thermos lunch box is hot box.

Activity Based Learning: Do it yourself – Thermos Flask (DIY)

Getting to know about thermos lunch boxes, now we are clear why it is used. The most common usage is found in people who work far from home and don’t have the option to visit home for afternoon lunch. This is most common in groups of people like students and employees mainly in big cities.

Expert Advise: Choosing kids thermos lunch boxes for children

If you fall into same category, its always advised to prefer thermos containers instead of normal food containers. Using such heat-proof / cold-proof containers will help you keep the food fresh, healthy and tasty. Also these containers help in saving time avoiding queues for microwave oven in office cafeteria.

Useful Tip: Carry Noodles / Pasta in thermos in a good condition

Such thermos containers are also called vacuum flask. The reason for calling it so is that the construction which contains vacuum in between two glass layers. It is also sometimes called as Dewar flask after the inventor Sir James Dewar. Though the invention of such a wonderful food container was successful in 1892 itself, the product got commercial in the year 1902.

Confused? Comparison of plastic v. thermos v. stainless steel lunch boxes

Never think it’s only purpose is to serve you keep your food fresh and healthy. The main use of this is found in most chemical laboratories where they need to keep different chemicals in conditioned environment at specific temperatures. This is required to save some gases in liquid form at very low temperatures. Usually liquefied gases will not be kept as it is in normal temperature and pressure as they will get evaporated in no time. When we keep such liquids in thermos containers, we can ensure a low temperature and the liquids will not be evaporated so easily.

Eat the best: Thermos container usage instructions for hot food.

Thermos containers are not at all expensive for a common man. The prices might start somewhere from $5. But the laboratory equipments made of thermos containers would be much expensive. It is better to go for a medium cost thermos container as it ensures a better quality so that we preserve food cooked in the morning till the afternoon and we would not face a need which is beyond this.

If you are curious to know the history and varieties of thermos flask – here is a video for you: