Winter has arrived, and you need something to keep your food hot and fresh while you are working in the office. What thermos does is balances the inner temperature by not allowing it to change with the outside temperature. Let’s discuss the principle of working of the thermos and the best food thermos you can buy.
Working Of Thermos
A thermos works on the principle of transfer of heat. As we all know, heat requires an intermediate to transfer. For a thermos, air acts as a medium. To prevent the transfer of heat, we need to place the object in a vacuum. The vacuum is the absence of air in the medium. A food thermos also works on this principle.
Thermos is a doubled walled container that is insulated to minimize the flow of air from it. During the construction of thermos, the air is sucked out to provide better insulation. The vacuum is present between the walls of the vessel, not allowing heat to flow through the vessel.
Similarly, thermos works for cold food items too. When a cold food is placed inside a thermos, it remains cold for an extended period, because there’s no intermediate between the walls of a thermos to prevent heat flow.
Best Food Thermos One Can Purchase
Given below are some of the best food thermoses one can purchase.
Home Puff Double Wall Vacuum Insulated Thermos
This thermos by Home Puff can keep your food warm for up to 5 hours. High-quality food-grade material and stainless steel are used to make this thermos. It aims to provide a durable and rust-free product. Its specialized double-walled construction does not allow heat to flow through it, thus providing more retentivity to the heat or cold.
Milton Thermosteel Soup Flask
Milton has always been known for delivering high-quality home products and kitchen appliances. It has proven to be 100% leak-proof and rust-free, while it is also easy to be washed. Milton Thermosteel Soup Flask is designed to keep food hot or cold for an extended period of time.
Thermos Stainless King 16 Ounce Food Jar with Folding Spoon
This thermos is better known for keeping food warm for up to 7 hours and cold for up to 9 hours, i.e., it provides more prolonged heat and cold retentivity than any other food thermos out there. Thermos Stainless King 16 Ounce Food Jar with Folding Spoon is constructed using stainless steel from inside and outside, and it comes with a foldable spoon attached to it.
Mosaic Stainless Steel Leak Proof Double Wall BPA-free
This thermos flask by Mosaic can keep things warm and cold for almost 12 hours. It is made using stainless steel inside and out to provide a leak-proof and rust-free thermos, which is convenient to carry wherever you go.
These were some of the best food thermoses, which are tested and approved to keep your food hot or warm for a longer time. These are convenient to carry and stylish.