Vacuum or thermos flasks aren’t just products for storing liquids. They keep your drink hot or cold for several hours, thanks to the stainless steel construction and double-walled vacuum insulation. Some of the famousthermos brands include Thermos, Stanley, Zebra and Hydro Flask.
So, if you are looking for a high-quality thermos flask for personal use or gift, take a look at our list of the best vacuum flasks below.
Table of Contents
Why It’s Our Top Pick:
“The Stanley Classic may come with an above-average price tag. But this is a solid vacuum flask that’s known for its durability and has all the essential features like a leakproof lid and long-lasting heat/cold retention.”
Overview:
Available in green and black, the Stanley Classic features a slim design made from a sturdy BPA-free 18/8 stainless steel material with double-walled vacuum insulation capable of keeping your drink hot or cold for up to 24 hours. It comes with a leakproof lid that also doubles as a drinking cup. The wide-mouth design makes it easier for pouring the liquid out of the flask.
Testimonies:
Overall user reviews are positive, where they generally praised the flask’s excellent vacuum insulation that keeps the liquids hot or cold for long hours. Made with rust-proof 18/8 stainless steel, trust that it’s durable. The one-hand-push button lid means the flask is easy to open and close as you won’t need to use both hands to hold it while you twist the cover.
Here’s a vacuum flask from Zebra that is lightweight easy to carry, say in your backpack for those who are constantly on the go.
Overview:
The Zebra Ultra Light Vacuum Flask comes with two colour options; blue and stainless steel. It has a capacity of 0.5 litres and the flask itself is made of durable and corrosion-resistant SUS 304 stainless steel material. It can retain either hot or cold drinks for 3-6 hours.
Testimonies:
User reviews are generally positive, where most of the praises are for its overall solid, yet lightweight design. It does indeed effectively keeps drinks hot/cold for long hours.
Designed for the outdoors, the Hydro Flask Standard Mouth Stone comes with an easy-to-carry handle.
Overview:
The Hydro Flask Standard Mouth Stone is made from a sturdy 18/8 pro-grade stainless steel material and for peace of mind, it is both BPA and phthalate-free.
It has a unique TempShield double-wall vacuum insulation, which not only helps to get rid of condensation but also keeps your drink hot or cold for up to 12 and 24 hours respectively.
Testimonies:
According to most user reviews, the Hydro Flask Standard Mouth Stone feels solid enough to hold. The TempShield insulation works well as promised, where hot/cold drink retains their temperature even for long hours.
The 40 year-plus Cosway brand is no stranger to offering a wide range of quality products and one of them includes this stainless steel vacuum flask.
Overview:
Made from SUS 304 stainless steel material, this Cosway double-wall vacuum flask features a leakproof stopper, complete with convenient one-push valve integration. The latter particularly comes in handy for easy pouring. It is suitable for both hot and cold drinks, capable of retaining the temperature for up to 8 hours.
Available in two colours including Candy Red and Dusty Gold, it can hold up to 500ml capacity and comes with a pull string pouch so you can store your flask when not in use.
Testimonies:
The Cosway Stainless Steel Vacuum Flask is easy to carry, thanks to its slim design. It feels solid in your grip while its leakproof stopper means you don’t have to worry about accidental leakage even if you store it inside your backpack. Finally, the flask’s double-wall vacuum insulation does keep your drink hot or cold for several hours.
Looking for a reliable vacuum flask that can keep your favourite drink cold for long hours? You might want to check out the Sakura Thermal Flask by La Gourmet.
Overview:
Available in a classy brass brown colour, the La Gourmet Sakura Thermal Flask boasts a slim design made from a durable 304 stainless steel material, complete with an extra copper lining for better thermal insulation. The flask is free from harmful toxins like BPA and lead and it can retain the temperature of your for up to 6 hours.
Testimonies:
Based on user reviews, the flask does keep their beverages hot or cold for long hours, thanks to its double-walled vacuum insulation. The stainless steel body feels sturdy and it is leakproof too, which eliminates the worries of spills when carrying the flask in your bag.
Available in Clear Stainless and Black colours, the Thermos Light & Compact Stainless Steel Flask has a 0.75-litre capacity.
Overview:
The flask is made from a durable 18/8 stainless steel material, complete with double-walled vacuum insulation technology to ensure the temperature of your drink remains hot or cold for up to 12 and 24 hours respectively.
It also stays cool to the touch even if you carry hot liquid, say coffee or baby’s milk. Other highlights include a stainless steel serving cup, an easy-to-open lid and a contoured body, a truly thoughtful design.
Testimonies:
The Thermos Light & Compact Stainless Steel Flask is mostly praised for its long-hour heat/cold retention when comes to storing the beverage. The stainless steel body feels solid and the lid is easy to open with zero fuss.
Thermos is one of the best flask brands in Malaysia. If you’re looking for a
vacuum flask to store food or soup, the Thermos Stainless Steel King Food Jar fits the bill.
Overview:
The Thermos Stainless Steel King Food Jar comes with three colour options; Royal Blue, Lavender Purple and Wine Red. It has a capacity of 0.71 litres andthe flask is constructed from a strong 18/8 stainless steel both interior and exterior.
It can retain the temperature of hot or cold food for up to 6 hours. Thanks to its extra-wide mouth design, it’s easy to fill while its added silicone gasket is specially designed to prevent accidental leakage. It stays cool to the touch even if you fill in the flask with hot foods and best of all, it comeswith a reusable folding stainless steel spoon so you won’t need to pack one separately.
Testimonies:
According to most users, the Thermos Stainless Steel King Food Jar works as intended. It is a nice vacuum flask that keeps the food hot/cold for long hours. The folding stainless steel spoon sure comes in handy while the extra-wide-mouth design makes it easier to fill in the food or liquid (e.g. soup) without worrying about spillage.
Here’s a budget-friendly vacuum flask from Elianware, which has an illustrious brand history stretching way back to 1994.
Overview:
The Elianware Elegant Stainless Steel flask comes with a 400ml capacity and is made from a durable 304 stainless steel. For peace of mind, it’s both BPA and toxic-free.
It can keep your drink warm or cold for up to 6 hours and when it comes to drinking straight from the flask, all you need to do is push to open it. The cap is leak-proof too, thanks to the silicon valve while the added tea partition means you can brew your favourite tea leaves.
Testimonies:
Those who bought the Elianware Elegant Stainless Steel flask love its overall lightweight and compact design. It does retain the drink temperature either hot or cold for several hours while the stainless steel body feels sturdy.
Overview
This smart 500ml vacuum flask is made of stainless steel and has an environmentally friendly, anti-friction design. With a digital display at the lid, Samu Giken utilises microchip technology to inform you of the temperature of your beverage.
Apart from that, it contains a middle layer of high-tech vacuum heat insulation that aids in maintaining the proper temperature for longer periods of time. Now you can enjoy your morning coffee at lunch!
Testimonies
Huge praises to Samu Giken for creating such a wonderful product for a fraction of the price. Users are thoroughly pleased and happy with the value and quality it offers from this flask.
- How do you know if a vacuum flask is good?
Not all vacuum flasks are created equal. You’ll want to take these factors Into account when shopping for a long-lasting flask.
Material
Always look for a vacuum flask that is made from stainless steel, preferably the one of 304 grade. This type of material is not only known for its durability but also offers excellent corrosion resistance as well as hot/cold retention.
Lid
Vacuum flasks are mostly used for storing hot/cold liquids or food. This is why the lid has to be secure. Find the one that has a leakproof lid with a silicone gasket or valve, both of which help to prevent the contents of your flask from leaking.
- Why can a vacuum flask keep drinks cold as well as hot?
Ever wonder how is it possible that a vacuum flask can retain the temperature of your hot or cold drinks? The answer lies in its double-walled stainless steel design that has a vacuum sleeve. It keeps liquids/foods hot or cold using three layers of protection (inner, vacuum & outer).
The vacuum between the two layers prevents heat from escaping the flask so your drink/food can stay hot for several hours. The same principle also applies to cold contents.
- How to clean a thermos flask
When comes to proper cleaning of a thermos flask to prevent an unpleasant or musky smell, one of the most effective cleaning methods is using baking soda and vinegar. Simply pour 1/2 cup distilled white vinegar and 1 tablespoon of baking soda into your flask.
Give it a shake and wait until the frothing reaction gradually wears off before you start filling the flask full with hot water. Leave it for a few minutes to allow the mixture to dissolve the stains while killing the germs within.
Then, grab a bottle brush and give it a good scrub around the inside of the flask as well as the bottom. Once complete, empty the thermos flask and rinse thoroughly to wash off not only the smell but also the remaining residue of the baking soda-vinegar mixture. Lastly, wipe the thermos flask with a clean cloth and leave it to air-dry.
