Best Insulated Flask /Bottles in India

Do you know why plastic and glass bottles always hold the wrong temperature? Because the nature of heat is to radiate and then spread across the container. The quench for cold/hot water in a plastic/glass bottle can become a distant dream after certain hours.

Well, in that case, investing in an insulated flask bottle would be of no harm as it is eco-friendly, versatile, practical, doesn’t break down fast, ideal for everything- home, office or even trekking and keeps your liquid in the same form for as long as 24 hours.

But as we say every time that looking into a few factors before purchase makes it even simpler than just looking into the details of the products. Hence, the parameters are listed below:

  • Capacity: The one which everyone looks forward to and the sizes can range from 200 to 1500ml on average.
  • Vacuum: This will decide as to how many hours you can keep your drinks or beverages at the same temperature. Double vacuum insulation can keep drinks hot for as long as 24 hours.
  • Design: Mostly these bottles are made up of 304 food-grade stainless steel and going for the one which is compact, sturdy and keeps your drinks intact would be of no harm.
  • Leakage proof: Many bottles have problems of leakage and that is why having a secured locking system with intact lid is the best option.

If you are still confused about certain features then please refer to our “Buying Guide” below the product descriptions.

With many variations present in the market, finding the best one can become a tedious task and that is why we have dedicated our hours to find out the 7 best Insulated Flask Bottles in India 2019.

Best Insulated Flask Bottles in India

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

Best Insulated Flask Bottles Reviews in India 2019

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

Insulated Flask Bottles Buying Guide

For knowing that what actually an insulated flask bottle does to your body, you should first know that there are two kinds of bottles other than insulated ones that are being widely used. Also, this will help you to understand how a flask bottle can be used for any purpose and carried anywhere, anytime.

  • Plastic

These are usually made up of the chemical BPA- Bisphenol A. Also, BPA is used for other food storing materials as well such as certain food containers and all. Mostly, plastics are very lightweight and consumes a lesser space in your baggage but they cause a lot of pollution when burnt or thrown. You can not rely on them for a long period because it deteriorates fast.

  • Glass bottles

Glass bottles are made up of pure glass materials which have higher chances of breakage. They are heavyweight bottles and people usually find it unfeasible to carry.

How Insulated Flask bottle stands out?

  • Because they are reusable and you can actually use it for years without getting worried about its wear and tear.
  • They are very lightweight which makes it easier to carry them anywhere either trekking, office or school.
  • You will not require to drink your coffee forcefully to save it from turning cold as you can store it in the flask and drink it hot anytime, anywhere.
  • They are very easy to clean
  • They are very eco-friendly and serves all the purposes.

Now, when you would go for a purchase, you should surely look into these things

1. Capacity

This is the first and foremost thing which anyone would want to know as it decides upon how many people you can serve at one go. Also, if it is 1 litre or 1000 millimeters then you can surely finish up half of your drinking water quota of one day. Usually, on average they come from 200 to 1500 millimeters and you can buy the one best suited for you.

2. Vacuum

Suppose, you are heading for trekking then you would want to spend your leisure time at the mountain sipping hot served tea. To maintain the hotness of that tea, looking into the vacuum quality of a bottle is very important. Usually, a good bottle comes with double-wall vacuum insulation and it decides as to how many hours the beverage can remain in the same temperature. Generally, it your drinks can stay hot and cool in the flask for as long as 24 hours.

3. Design

It is utmost important to look into the design as it will somehow decide upon the durability also. It should have a stylish and sleek design which will make you take it to your workplace, school or college more often. Also, a strong and sturdy design can ensure durability.

4. Material

Usually, the insulated flask bottles are made up of high-quality stainless steel which ensures that the liquid remains at the same temperature. The bottle should be made of sturdy and strong construction which can stay for a long duration.

5. Heat retention power

You should always look into the heat retention power of an insulated flask bottle. The maximum time a bottle can retain the heat, the maximum time beverage will remain in its own temperature inside. A bottle can keep the liquid hot or cold for as long as 24 hours. You can go for the bottle which keeps the liquid hot or cold for 12 hours even because that can serve the purpose of your purchase.

6. Leak-proof

As they are made up with double vacuum insulated walls, you should make sure that there is no leakage in the bottle. The cover and its mouth should be intact so that it wouldn’t cause you trouble in carrying it anywhere.

7. Lid

Lid decides on many factors and one of its major is- ease while cleaning. If you will go with a narrow mouth then you can directly drink from the bottle and clean it easily and same will happen in the case of flip-open lid. A wide-mouth lid will help you to pour your drink easily into any other cup or glass and it comes up with a cup-like cover.

8. Eco-friendly

There are bottles which are made of 100% food grade material stainless steel and you will be able to read about the same in the product description. Also, going with the one which is BPA free will ensure that there is no industrial chemical used and you can use as long as you want.

9. Lightweight

Usually, these insulated flasks are very lightweight and are very easy to carry anywhere. You can find a lightweight flask from 250g to 1kgs on average.

10. Easy to clean

This is the question which arises in everyone’s mind before going for a purchase. These flasks come with a superior clean interior and you can clean them easily by pouring water and detergent inside it. Also, for easy clean, an open mouth flask would be more suitable.

11. Warranty

This is the most important aspect as it decides upon the durability and longevity of the product. Usually, there are some flasks which do not have warranty and some come with a warranty of 1 to 2 years on average.

12. Price

The insulated flask bottle is quite expensive than glass or plastic bottles but you can keep it for years. Hence, compromising on the price won’t be suitable and you can find a good flask in the range of 300-1500 on average.

Frequently Asked Questions

1. How can you remove the bad odour or smell from flask bottles?

Well, usually these insulated flask bottles don’t smell bad as they are made up of superior quality materials. But, even if it smells then you can go for cleaning the bottle with baking soda or simple detergent along with water. Also, make sure that the bottle is completely dried up before you go for using it as it can still have the smell of detergent. Caution- use very less detergent to clean.

2. What are the additional advantages of keeping vacuum insulated bottles over glass?

Glass bottles are not feasible to use as they come with a risk of breaking down. Also, you can’t clean the glass bottles properly and they are heavy weight. If it breaks down, it can hurt anyone and hence not much reliable but a flask is lightweight, easy to clean and doesn’t break easily.

3. Can I store coca-cola drink in a flask bottle to retain its cool?

Yes, you can store either a hot or a cold drink or beverage as a vacuum insulated flask bottle is capable of holding the temperature of your drink for as long as 24 hours.

4. How does a flask keep the temperature constant for hours?

As you know, an insulated flask bottle comes with double vacuum insulated wall. So, this wall ensures that the outside heat doesn’t come inside and thus keeps the temperature constant for as long as 24 hours.

5. Do all vacuum flasks keep the temperature constant for 24 hours?

No, not all as there are various products in the market and you can read about the best 7 insulated flask bottles in the above article. Some are liable to keep the temperature intact for as low as 6 hours while some can keep it for as long as 24 hours.

6. Does water remain hot in copper bottles? If yes, then for how long?

Yes but not for so long as it is a very good conductor of heat and you can see many utensils made of it in your kitchen. If you really want to invest in a bottle that can keep your water hot for many hours then go for an insulated flask bottle as it can retain the temperature of your liquid for as long as 24 hours.

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.

Leave a Comment