What To Look For When Choosing a Thermos Flask.


The dynamism in lifestyle has really necessitated the incorporation of convenience in everything we do. This is reflected more in the preservation of foods and drinks for prolonged time yet maintaining the relative temperatures  if not original during serving.

Different thermos flasks vary. The purpose for which you want to use them will definitely determine the choice you will buy.

Some of the features to focus unto when choosing a thermos or flask as detailed below.

Construction & Insulation.

The temperature retention of the foods and drinks and durability of the flask are dependent on the construction and insulation . While plastic or pressed tin models are available, most modern thermoses have a double-walled stainless steel construction. This provides strength, scratch resistance, shatter-proofing and corrosion-resistance.

Stainless steel is also able to withstand the pressure of vacuum insulation. This type of insulation maintains temperature with a vacuum, or airless space, between the two walls of the thermos.

This prevents heat or cold leaching into or out of the interior. Therefore, a flask with good quality vacuum insulation holds heat for longer than one with foam insulation.



The capacity of a thermos dictates how many people can stay hydrated and for how long. With capacities ranging from four ounces to one gallon, you should choose the size of your flask based on its most likely use.

If, for example, you need a thermos for hiking, family picnics or other all day or overnight activities, you require one with a substantial capacity.

For hydration during a workout or a hot drink on the daily commute, a single-serve travel mug or travel tumbler of between four and 16 ounces is a better option.



There’s a huge choice of potential features to choose from that impact both purpose and ease of use. If you’re looking for a thermos that’s easy to carry while you run or work out, consider one that comes with a carry strap, clips to your belt or has a contoured body for a comfortable grip.

For drinks while driving, opt for a slimline travel mug that fits into a vehicle cup holder. When you require a large-capacity flask, look for one with a carry handle, strap or case.

For storing in a backpack or lunchbox or to carry over rough terrain, the flask needs to be airtight so it doesn’t leak.

Thermos provide you with a means to keep your food and drink at a suitable temperature while you’re away from home. Use the factors listed above to help you make an informed purchasing decision.


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