A thermos flask or a vacuum flask helps keep a hot liquid hot and a cold liquid cold for a long time. It is a great way to carry your beverages like tea or coffee, soup, milk, and cool drinks. You can also use it to carry protein shakes if you’re going to the gym. The best thermos flask has a capacity of 500 ml which goes up to 2 liters. Normally it can maintain the temperature of your beverages for about 3 – 5 hours. High durable thermos flask can hold up to 36 hours. For your ideal choice, we have tested different brands and identified the best thermos flask in India. You will know about the merits and demerits of all thermos flasks.
10 Best Thermos Flask in India
The following are the best picks of a thermos flask, which are available in India.
| Best Thermos Flask in India | Capacity | Warranty | Price |
| Milton Thermosteel Flip Lid Flask | 1000 ml | 1 Year | Check Price |
| Cello Flip Style Stainless Steel Insulated Flask | 1000 ml | 1 Year | Check Price |
| Solimo Stainless Steel Insulated Flask with Flip Lid and Cover | 1000 ml | N/A | Check Price |
| Borosil Hydra Thermo Stainless Steel Flask | 1000 ml | 1 Year | Check Price |
| Milton Glassy Thermosteel Vacuum Flask | 1000 ml | 1 Year | Check Price |
| InstaCuppa Thermos Flask with Stainless Steel Mug | 1000 ml | 1 Year | Check Price |
| Pinnacle Stainless Steel Vacuum Flask with Flip Lid | 1000 ml | 1 Year | Check Price |
| Yacht Vacuum Insulated Double-Wall Thermosteel Flask | 500 ml | 6 Months | Check Price |
| Prestige Stainless Steel Flask | 1000 ml | 1 Year | Check Price |
| Frabble8 Vacuum Insulated Double Wall Stainless Steel Flask | 500 ml | N/A | Check Price |
Milton Thermosteel Flip Lid Flask (1000 ml, Silver)
Highlights
- Milton is the best thermos flask brand in India.
- It is durable, user-friendly and highly functional.
- Double walled vacuum flask maintains beverages at a constant temperature.
- Both inside and outside with high quality SS 304 Stainless Steel.
- It can keep beverages hot and cold for 24 hours.
- Inside wall is coated with copper for better heat retention.
| Color | Silver |
| Weight | 630 grams |
| Body Type | Steel |
| Material | 18-8 Steel |
| Capacity | 1000 ml |
| Product Dimensions | 33.3 x 9.8 x 9.8 Centimeters |
Pros
- Leak proof and hassle free.
- Provided with a carry pouch.
- 1 year warranty.
- BPA free.
- Ideal for home, office, gym and outdoor.
Cons
- Little heavy to carry.
Cello Flip Style Stainless Steel Insulated Flask without Thermal Jacket (1000ml, Silver)
Highlights
- Cello is the second best thermos flask brand in India.
- Double walled vacuum insulated technology keeps beverages hot or cold for 24 hours.
- Inner layer coated with copper for better temperature retention using thermoseal technology.
- Made from 304 stainless steel for both inner and outside.
- Contains unique removable stopper for thorough cleaning.
| Color | Silver |
| Weight | 700 grams |
| Body Type | Steel |
| Material | 18-8 Steel |
| Capacity | 1000 ml |
| Product Dimensions | 9.5 x 33 x 95 Centimeters |
Pros
- Vacusteel technology.
- BPA free.
- 100% insulated stainless steel body.
- Leak proof and dust proof.
- Ideal for office, home, outdoor, camping and more.
- 1 year warranty.
Cons
- It does not come with a thermal jacket.
Solimo Stainless Steel Insulated Flask with Flip Lid and Cover (1000ml, Silver)
Highlights
- It is made from 304 grade stainless steel.
- Provided with a Flip lid with a leak-proof cap that can be used as a cup.
- Can keep water or beverages hot or cold up to 24 hours.
- Elegant Matt finish body with a wide open mouth makes easy to clean.
- Suitable for all beverages such as tea, coffee or juice.
| Color | Silver |
| Weight | 580 grams |
| Body Type | Steel |
| Material | 18-8 Steel |
| Capacity | 1000 ml |
| Product Dimensions | 8.2 x 8.2 x 32.8 Centimeters |
Pros
- Double-walled insulation body.
- Light weight and compact.
- Rust free and leak proof.
- 100% food grade.
- Ideal for home, work, picnics and day-long trips.
Cons
- No warranty for this product.
Borosil Hydra Thermo Stainless Steel Flask with thermal cover (1000 ml, Silver)
Highlights
- Another best thermos flask brand in India made with 304 grade steel.
- Double wall insulation protection helps to keep hot or cold at a constant temperature.
- Rust free vacuum insulated steel flask both inside and outside.
- Inside copper coating for maximum heat retention.
- It is suitable for all beverages such as milk, coffee, tea or juice.
| Color | Silver |
| Weight | 570 grams |
| Body Type | Steel |
| Material | 18-8 Steel |
| Capacity | 1000 ml |
| Product Dimensions | 8.4 x 8.4 x 31 Centimeters |
Pros
- BPA and phthalate free.
- Copper coating for temperature retention.
- 100% food grade and non-toxic.
- 1 year warranty.
- Ideal for home and office.
Cons
- Maintains heat for just 10 hours.
Milton Glassy Thermosteel 1000ml Vacuum Flask – Purple
Highlights
- Available in two colors – grey and purple.
- Comes with double wall vacuum insulation.
- Tough and durable flask fabricated with 18/8 stainless steel.
- It can keep liquid hot or cold up to 24 hours.
- Transparent drinking cup is provided with this flask.
| Color | Grey/Purple |
| Weight | 350 grams |
| Body Type | Steel |
| Material | 18-8 Steel |
| Capacity | 1000 ml |
| Product Dimensions | 8.6 x 8.6 x 30.7 Centimeters |
Pros
- Extremely light weight.
- Rust resistant & leak proof.
- Comes with a carry pouch.
- 1 year warranty.
- Ideal for gym, sports, school and outdoors.
Cons
- Maintains heat for just 5 – 6 hours.
InstaCuppa Thermos Flask with Stainless Steel Mug and Twist Pour Stopper Screw Lid
Highlights
- It is a double walled vacuum insulated thermos flask with a premium matt finishing looks.
- Screw lid comes with a twist and pour stopper which helps to pour beverages spill-free.
- Provided with a large stainless steel mug of 250 ml.
- Vacuum insulated body helps to lock in heat for up to 12 hours and cold for up to 24 hours.
- Suitable for coffee, tea, water, milk and soup.
| Color | Matte Black |
| Weight | 650 grams |
| Body Type | Steel |
| Material | Stainless Steel |
| Capacity | 1000 ml |
| Product Dimensions | 12 x 12 x 28 Centimeters |
Pros
- Stylish and elegant design.
- 1 year warranty.
- Leak proof and eco-friendly.
- Comes with a built-in stainless steel mug.
- Ideal for office, travel, gym, camping or daily travel.
Cons
- Price is quite expensive.
Pinnacle Stainless Steel Vacuum Flask Bottle with Flip Lid – Palladium (Gold, 1L)
Highlights
- Pinnacle is an Indian Brand which exports products to 40+ countries worldwide.
- Thermos flasks are made of High Grade Stainless Steel (SS304).
- Copper coating provides 100% heat retention and rust proof.
- Smart Anti-Skid Silicon Base helps flask to stay constantly where you left.
- Vacushield is a patented technology for long-lasting insulation.
| Color | Palladium Gold |
| Weight | 730 grams |
| Body Type | Steel |
| Material | 304 Grade SS |
| Capacity | 1000 ml |
| Product Dimensions | 7.5 x 7.5 x 32.5 Centimeters |
Pros
- Leak proof.
- Scratch resistant.
- Premium matt gold lacquer finish.
- Comes with a protective bag.
- BPA free and FDA approved.
- 1 year warranty.
Cons
- Little heavy to carry.
Yacht Vacuum Insulated Hot & Cold Double-Wall Thermosteel Bottle, 500 ml Flask (Bliss-Black)
Highlights
- Double-walled stainless steel flask with a vacuum insulation.
- It can hold heat up to 12 hours and cold up to 24 hours.
- Comes with elegant & swanky premium matt finished looks.
- This is suitable for all beverages such as milk, coffee and tea.
- Vacuum insulated travel mug also provided with this flask.
| Color | Bliss-Black |
| Weight | 380 grams |
| Body Type | Steel |
| Material | Stainless Steel |
| Capacity | 500 ml |
| Product Dimensions | 9 x 9 x 30 Centimeters |
Pros
- BPA and phthalate free.
- Leak proof & non-toxic.
- Ideal for home, office, gym, sports and outdoor.
- 6 months warranty.
- Condensation resistant.
Cons
- Price is expensive.
Prestige Stainless Steel Flask (1 Litre, Silver)
Highlights
- Double wall insulation with copper layer for heat retention.
- It is made with 304 grade stainless steel.
- Carrying pouch is provided to protect the flask from scratches.
- Flask cap can also be used as serving cup.
- Spill proof lid lock keeps liquid safe and hygienic.
| Color | Silver |
| Weight | 630 grams |
| Body Type | Steel |
| Material | Stainless Steel |
| Capacity | 1000 ml |
| Product Dimensions | 32 x 11 x 11 Centimeters |
Pros
- Suitable for tea, coffee and water.
- Copper coating for heat retention.
- 1 year warranty.
- Screw stopper to close the flask perfectly.
Cons
- Build quality could be better.
Frabble8 Vacuum Insulated Double Wall Stainless Steel Flask
Highlights
- Frabble8 is made with rust-resistant (18/8) durable stainless steel.
- Copper coating inside the flask helps to retain the heat for long hours.
- Beverages such as tea, coffee, milk, juice or soup can be filled.
- Keep beverages hot for 8 hours and cold for 12 hours.
- It is leak-proof and unbreakable.
| Color | Black |
| Weight | 350 grams |
| Body Type | Steel |
| Material | 18/8 Steel |
| Capacity | 500 ml |
| Product Dimensions | 24 x 6.5 x 6.5 Centimeters |
Pros
- Made from 304 grade stainless steel.
- BPA free.
- Provided with mesh tea fruits infuser.
- Anti-slip cup bottom.
Cons
- No warranty.
Related: Best Cold Press Juicer in India
Buying Guide – Best Thermos Flask in India
You must consider quality, durability, warranty, and additional features before buying any products in the market. We have various brands, yet confusing to pick the best choice. So I have listed some of the key factors which you need to compare with one another to choose your ideal thermos flask.
1) Capacity
It normally ranges from 350 ml to 1000 ml. You have to select the size based on your requirements.
2) Hot/Cold Retention
Thermos flasks in basic can maintain the temperature for 5 – 6 hours. Premium high-quality thermos flasks can maintain it for 12 – 24 hours. Based on your needs, pick up the right thermos flask.
3) Material
Most of the thermos flasks are made of double-wall stainless steel. This is free from rust, durable, BPA free and scratch-proof. Always select the flasks made with steel for long use.
4) Insulation
Thermos flasks have two types of insulation – vacuum and foam. The most common is a vacuum which prevents the external temperatures from affecting the temperature of the liquid inside. Foam technology also serves the same, but comparatively, vacuum retains the temperature for long hours.
5) Leak Proof
Thermos flasks generally come with leak-proof technology. So you need to buy the ones with this feature.
6) Easy to Clean
Some thermos flasks have a wide opening which is easy to clean. You need to use a mild solution or soap to clean the inside part using a sponge. This helps to remove the dirt and odor present inside the flask.
To Conclude
I hope you will be clear in identifying the best thermos flask. This buying guide will help you find the best that suits your requirements. The list of top 10 thermos flask is the best picks and is widespread in India. You don’t need to search for any alternatives. Get amazing offers by checking on those links. If you have any doubts while using the product, post your queries in the comments.