thermos flask

Here we give you idea about best thermos flask in India. A thermos flask also known as a vacuum flask is an insulating container that helps keep the drink warm or cool.

A thermos flask helps you to enjoy your favorite drink at the temperature you like. When you are out on a walk or on a long drive, it is very helpful. The best part about it is that you can carry it along with you anywhere.

List Of Thermos Flask/Bottle

1 Milton Thermosteel Flip Lid Flask

Milton Thermosteel Flip Lid Flask
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Product Description

  • 100% rust free steel and leak resistant
  • capacity: 500 ml
  • Fabricated inside and outside in 18/8 quality stainless steel.
  • Made of: Steel, Copper
  • 1 Year Warranty


  • Keeps beverages hot or cold for up to 24 hours
  • Sturdy steel vacuum flask with a unique flip Lid
  • The lid of this flask also serves as a cup for drinking

4378 Customer Gives 4.2 rating over 5

2 Cello Flip Style Stainless Steel Bottle

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Avail No Cost EMI on select cards for orders above ₹3000 

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Available on Amazon 

Product Description

  • Made with thermo seal technology & high quality steel ( 18/8)
  • Maintains the temperature of the liquid for upto 24 hours.
  • Material: Stainless steel
  • Capacity : 500 ml


  • Double wall insulation
  • Keeps hot for long hours and cold as well that helps you to save gas, time and efforts
  • Extra protection, comes with a smart carry pouch
  • Tough and durable

2275 Customer Gives 3.9 rating over 5

3 QUICK SHEL Steel Water Bottle 

Product Description

  • Material – stainless steel and pp
  • Capacity – 450 ml
  • Vacuum insulated stainless steel
  • leak proof and bpa free
  • Keep those hot things hot and the chill things cool
  • Easy to carry everywhere


  • Easy to clean and maintain
  • Very lightweight
  • Comes with a big mouth and twist-on top, so you won’t have to think about anything
  • Vacuum insulation that keeps your cold drinks cool and your hot morning coffee (or afternoon soup)

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682 Customer Gives 3.6 rating over 5

4 Dubblin Vaccum Insulated Water Bottle 

Product Description

  • Inner surface made of high-grade, double walled stainless steel with a smooth, easy to clean finish
  • Inner and outer body made of high-grade stainless steel, without any glass.
  • Double wall stainless steel with vacuum insulation keep contents cold /hot for hours.
  • Anti-skid rubber at bottom


  • Rust-free
  • Leak-proof
  • Easy to clean and maintain
  • Very lightweight Exterior free from condensation

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268 Customer Gives 4.3 rating over 5

5 Borosil Stainless Steel Vacuum Insulated Flask 

Product Description

  • 100 percent food grade
  • 100 percent Rust Proof
  • Mouth wide enough for ice cubes and drip free sipping
  • Long last finish on body which will not fade or wear out with usage
  • Color:Black, Material:Stainless Steel
  • Warranty: 1 year warranty


  • Insulated double wall vacuum with copper coating for maximum temperature retention
  • Condensation free exterior so your hands and bag stay dry
  • Cool to touch body with hot liquids and sweat proof with cold liquids
  • BPA and Phthalate free – all plastic parts are food grade
  • Non leaching and toxin free for healthy drinking

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464 Customer Gives 4.3 rating over 5

Thermo Flask Buying Factor

When you look online there are plenty of thermos flasks available in various styles, shapes and sizes on the market. You will choose the thermos flask shape depending on the liquid you want to bring inside.


Thermos flasks provide many storage capabilities. They come in different sizes-350ml, 500ml, 750ml, or 1050ml. You can select bottle size according to your needs.

Retention of heat

This is a rather important aspect. It determines the amount of time the flask will keep the drink hot or cold for. An average flask provides a 4-5-hour heat retention limit. However, there are some high quality flasks which also give a 12-24 hour heat retention limit.

Insulation Type

The vacuum insulation operates by preventing heat transfer from the outside of the container to the inside. By creating a void inside the inner wall, it does so. Since there is no air, the convection does not occur, and this is how the liquid temperature inside the container is preserved.

The convection is avoided by the use of foam in the foam insulation process. Water moving around in the foam is very difficult. Thus heat can not be transferred to the inside from the outside of the container.

As opposed, using foam insulation, flasks with vacuum insulation retain the temperature for longer periods than the flasks.


Every thermos flask should have a proper locking device to provide a sturdy and stable lid. This should help avoid some kind of bottle leakage.


Many materials provide strong thermal insulation. Yet it has been proved that the double-walled stainless steel material is the strongest of all.

As thermal insulators, some cheaper versions use plastic. They are not strong insulators, so they can only keep the temperature stable for a few hours.

How to clean a thermos flask?

  • You should put a spoonful of baking soda and a half cup of vinegar into it to clean the flask properly.
  • Shake well the bottle and pour it out into the sink.
  • Give in some hot water and leave the bottle for 10-15 minutes.
  • Now throw this water with a long brush, and clean the interior.
  • Rinse the bottle with a little salt and water at the end to rinse it full.

How Its Work ?


1 Can I use a thermos water bottle for tea and coffee?

A bottle of thermos can be used to store the tea and coffee. The vacuum insulation should prevent heat from escaping so the tea and coffee remain hot for a longer period of time.

2 Is there a coating on the interior of your stainless steel bottle?

Most bottles made from stainless steel come with a copper coating. This ensures optimum retention of heat for a period of time. This way, the drink remains hot or cold for hours. The interior may even have a super clean finish to ensure it is odor-free or stainless.

3 How long can you beverage remain hot or cold in the thermos bottle?

The beverage normally stays hot or cold in your thermos jar for up to 12 hours. Those thermos cups, however, deliver longer periods of heat retention. These bottles will hold your drink hot or cold for a period of 24 hours.

4 What does BPA free mean?

BPA is for bisphenol A. It is a chemical used for producing plastics and resins that are used for producing containers that hold food, water, or beverages. A thermos-free bottle with BPA means the bottle is completely clean from this toxic chemicals.

5 How can you remove stains or smell in the thermos?

You normally clean your thermos bottle using a detergent dishwasher and a cleaner with a soft-bristle. Through pouring a small amount of baking soda into the bottle and then scrubbing it with the bottle brush you can also extract stains or odor from the bottle. The bottle is then to be thoroughly rinsed with water.

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