Best Thermos Flask /Bottles in India: 2021 Reviews

A thermos flask also referred to as a vacuum flask or a dewar flask is an insulating bottle that helps in maintain the temperature of the drink. The best ones do it for the longest period of time.

A thermos flask lets you enjoy your favorite drink at the desired temperature. It is very helpful when you are out on a trek or on a long drive. The best part about it is you can carry it anywhere along with you.

Before buying a thermos flask, here are some factors that you should consider:

Capacity: 

Thermos flasks offer different storage capacities. It ranges from 350ml to 1000 ml. You can select the storage capacity as per your requirement.

Heat Retention:

The heat retention refers to the amount of time that a flask can keep the water hot. While some flasks offer a retention rate of 4-5 hours, few offer 12-24 hours too.

Material:

There are many materials that offer good thermal insulation. Amongst all, the double-walled stainless steel is considered the best. Steel is durable, corrosion-resistant, and scratch-resistant.

Some other factors that need to be considered are design, delivery system, etc. To make sure you buy the best thermos flask, we would advise you to take a look at our comprehensive Buying Guide mentioned below. 

After an extensive research and testing many products, we have shortlisted 7 best thermos flasks that are available in the market. Let’s have a look!

Best Insulated Flask Bottles in India

ProductsMax capacityMaterial usedWarrantyBuy Now
Milton Vacuum Flask1000 mlHigh-quality stainless steel1 yearCHECK ON AMAZON
Instacuppa Vacuum Flask1000 mlMatte exterior finishing and stainless steel1 yearCHECK ON AMAZON
Milton Vacuum Flask1000 mlStainless steel coated with copper1 yearCHECK ON AMAZON
QUICK SHEL Vacuum Flask450 mlHigh quality 304 stainless steelN.ACHECK ON AMAZON
Dubblin Vaccum Flask700 mlHigh quality stainless steelN.ACHECK ON AMAZON
Borosil Vacuum Flask500 mlHigh quality stainless steel1 yearCHECK ON AMAZON
Cello Vacuum Flask900 mlPlastic on the outside, stainless steel insideN.ACHECK ON AMAZON

Best Insulated Flask Bottles Reviews in India 2020

1. Milton Vacuum Flask

Milton Vacuum FlaskThis insulated vacuum flask water bottle is ideal for those who are looking to buy it for daily use or travel purposes as its high-quality sleek and slender design makes it long-lasting, eco-friendly and very easy-to-use. We have put it first in our list because if offers everything that you would be looking for:

Maximum capacity: 1000 millimeters

Other best features of Milton Thermosteel Duo Deluxe are

  • Lightweight: it is 513 g before filling which is very light to be carried
  • Material used: High-quality stainless steel with inner and outer body covering
  • Comes with double: walled vacuum insulator and a simple threaded lid for easy use
  • Dimensions: 33 X 8cms which can easily fit inside shoulder, school or trekking bag

Warranty: 1-year warranty on the product

Pros

  • Ideal for travel and daily use
  • Easy to clean
  • Sturdy construction
  • Can keep the cool or hot liquid for 12 hours and more
  • Comes in different colors
  • Sweat free non-slip grip
  • BPA free
  • Leak-proof
  • Condensation-free exterior

Cons

  • Can retain for 12 hours only

Buy Now at Amazon

2. Instacuppa Vacuum Flask

Instacuppa Vacuum FlaskThis vacuum insulated stainless steel flask bottle can be preferred for any purpose such as carrying it to the office, storing it for daily use or using it for camping, trekking, and others. It comes with a very unique and modern design that can add spark to your bags and its dual-layer enables it to perform better than other flasks.

Maximum capacity: 1000 millimeters

Other salient features of Instacuppa Thermos Bottle are

  • Lightweight- it is around 450 g which enables a person to only carry the weight of water or beverage
  • Material used- Matte exterior finishing and food-grade 304 stainless steel
  • Comes with a screw-on lid which is most popular during gymming
  • Can easily fit inside the car cup holder, shoulder, school or trekking bag

Warranty: 1-year warranty on manufacturing defects

Pros

  • Ultra-modern design
  • Can keep the cool liquid for 24 and hot for 12 hours
  • Non-stick grip
  • Rust-free
  • Leak-proof
  • BPA free
  • Easy to clean and maintain
  • Condensation-free exterior

Cons

  • Heavier than other bottles

Buy Now at Amazon

3. Milton Vacuum Flask

Milton Vacuum FlaskIt is a multi-purpose bottle that can be used for all your requirements and it has a unique flip lid specifically designed for easy pouring of tea or other beverages. It also comes with an additional cup (cover) that can be used as a utensil for drinking purposes.

Maximum capacity: 1000 millimeters

Other notable features of Milton Thermosteel Flip Lid are

  • Lightweight- 699g, which can be easily carried anywhere
  • Material used- Stainless steel and it is coated with copper for better heat retention
  • Comes with double-walled vacuum insulator and a unique flip lid for better retention and easy pouring
  • It occupies less space and hence very portable

Warranty: 1-year warranty on manufacturing defects

Pros

  • Can keep the cool liquid for 24 and hot for 12 hours
  • Non-stick grip
  • Rust-free
  • Leak-proof
  • BPA free
  • Easy to clean and maintain
  • condensation-free exterior

Cons

  • Flip lid
  • Heavier than other insulated flasks

Buy Now at Amazon

4. QUICK SHEL Vacuum Flask

QUICK SHEL Vacuum FlaskEveryone requires water or dehydrating drinks during working out or performing any other activity and it becomes tough to carry a large bottle. Quick Shel BPA-free is specifically designed to serve all those purposes as it is lightweight, easy to carry and easy to clean. Well, you can also use it for trekking, office or for home needs.

Maximum capacity: 450 millimeters

Other best features of Quick Shel BPA-free are

  • Lightweight- across 350g which is lighter than any other flask
  • Material used- High-quality 304 stainless steel
  • Comes with twist-on lid and a wide mouth so you will not have to worry about anything
  • Can be easily carried anywhere gym, office or for traveling purposes

Pros

  • Non-stick grip
  • Rust-free
  • Leak-proof
  • BPA free
  • Easy to clean and maintain
  • Very lightweight
  • Condensation-free exterior

Cons

  • Can keep the cool liquid for 6 hours only
  • No warranty

Buy Now at Amazon

5. Dubblin Vaccum Flask

Dubblin Vaccum FlaskIf you are in the quest of a bottle which offers fancy look with durability then Dubblin is the best fit as it comes in various colors, is very easy to use and maintain the temperature for a particular period of time.

Maximum capacity: approx 700 millimeters

Other notable features of Dubblin Boom HOT & Cold Duro Steel are

  • Lightweight- around 350g which is ideal for carrying anywhere
  • Material used- High-grade stainless steel
  • Comes with double-walled vacuum insulator, anti-skid rubber and wide lid for easy storage
  • Ideal for transportation and keeping at home

Pros

  • Rust-free
  • Leak-proof
  • Easy to clean and maintain
  • Very lightweight
  • Condensation-free exterior

Cons

  • Can keep the cool liquid for 8-10 hours only
  • No warranty

Buy Now at Amazon

6. Borosil Vacuum Flask

Borosil Vacuum FlaskFor the people who are looking for a wider mouth insulated flask bottle, Borosil is the best one for you as ice cubes can be easily put inside it and you can keep the hot or cold beverages at the same temperature for as long as 12 hours.

Maximum capacity: It can easily suffice a single person as it comes with a capacity of 500 millimeters

Other salient features of Borosil stainless steel Hydra trek are

  • Lightweight- you can carry it anywhere as it is approx 250 g
  • Material used- Your bottle can be used for a longer duration as it is equipped with 304-grade stainless steel
  • Comes with a wide mouth and drip-free slipping
  • You can use it for multiple purposes that is carrying at the office, home or gym.

Warranty: 1-year warranty on manufacturing, you will not have to spend a single penny if there is any manufacturing defect.

Pros

  • Condensation free-exterior
  • BPA and Phthalate free
  • Rust-free
  • Leak-proof
  • Easy to clean and maintain
  • Very lightweight

Cons

  • Only 500 millimeters water capacity

Buy Now at Amazon

7. Cello Vacuum Flask

Cello Vacuum FlaskCello has been carving a niche in anticipating customers’ needs and then delivering the best and eco-friendly products to them. If you are looking for a good insulated flask bottle and your budget is a little low then going for Cello Puro Steel-X can be of no harm as it comes with stainless steel inside to keep the temperature intact and plastic outside which is light in weight.

Maximum capacity: 900 millimeters, it can serve tea for 4-5 people and keep the hunger away for 2 persons.

Other best features of Cello Puro Steel-X Lexus are

  • Lightweight- approx 250 g, you can keep it inside your shoulder, trekking or school bag
  • Material used- Plastic on the outside and stainless steel on the inside
  • Comes with a wide mouth and flip-top cap for easy cleaning
  • It is odourless so that you won’t get the odour of any liquids

Pros

  • Comes with a wrist belt to carry
  • Break proof
  • Leakproof
  • BPA free
  • Easy to clean and maintain
  • Very lightweight

Cons

  • Hold hot or cold water only for 6 hours
  • No warranty

Buy Now at Amazon

Conclusion

While there are varied ranges of insulated flask bottles available in the market which are responsible for keeping the liquid cool or hot for many hours, we find Milton Vacuum Flask to be the best fit as it comes with a sleek and slender design, very easy to use, easy to carry, easy to clean, lightweight, ideal for travel and daily use, leak-proof, has the capacity to store 1 liters of water or liquid, BPA free and eco-friendly.

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