Best Thermos

10 Best Thermos Buyer’s Guide [Reviewed & Rated]

Taking your favorite beverage or food with you for hiking or camping sounds fun until you open up your flask and find out that your precious meal went from hot to very cold in minutes.

A thermos is a special kind of flask that can preserve your food or beverages at the right temperature for hours.

In this post, you’ll get to see some of the best thermos.

Finally, you’ll be able to get a thermos that can preserve your beverages (hot/cold) for 24 hours. The best part is, these thermoses are very affordable, easy to use and clean.

Are you ready to see what I have in store? Well, let’s begin!

Comparison Table

Product Name
Size
Keep Hot
Keep Cold
Max Capacity
Price
Vondior Thermal Coffee Airpot

best thermos for keeping coffee hot
15.3 x 8 x 7.9 inches
24 hours
24 hours
85 Oz
Thermos Stainless King

best stainless steel thermos
4.3 x 3.7 x 12.3 inches
24 hours
24 hours
40 Oz
Thermos Funtainer

best thermos for kids
3.5 x 3.5 x 4.5 inches
5 hours
7 hours
10 Oz
S'well 10316-B17-00140

best travel thermos
3.3 x 3.3 x 9.2 inches
12 hours
24 hours
20 Oz
Iron Flask Sports Water Bottle

best thermos for cold drinks
3.74 x 13.94 x 3.94
12 hours
24 hours
64 Oz
Thermos Stainless King

best small thermos
3.7 x 3.7 x 5.5 inches
7 hours
9 hours
16 Oz
Cresimo Thermal Coffee Carafe

Best Thermos
10.8 x 6 x 6 inches
12 hours
24 hours
68 Oz
Sumerflos Thermal Coffee Carafe

Best Thermos
9.5 x 5.3 x 5.3 inches
16 hours
24 hours
50 Oz
Thermos The Rock Work Series

Best Thermos
5.3 x 5.1 x 12.5 inches
24 hours
24 hours
33 Oz
Pykal SplashProof Coffee Carafe Airpot Dispenser

Best Thermos
7.5 x 7.5 x 13.8 inches
24 hours
24 hours
120 Oz

Top 10 Best Thermos Reviews

1. Vondior Thermal Coffee Airpot – best thermos for keeping coffee hot

You can keep your coffee and other kinds of beverages hot for up to 24 hours and it doesn’t end there, it can also keep your beverages cold. I like this one in particular because it has a dispenser. Traditional thermal coffee pots normally require pour-over but not this one. The Vondior Thermal Coffee Airpot has a pump-action top, all you need to do is press a button and watch it dispense coffee.

It is made of premium stainless steel material both inside and out which makes it very easy to clean. With an 85 Oz capacity, you can fill up to 15 cups after filling this thermos. Don’t judge its size by the image you are seeing, this thermos is quite big.

best thermos for keeping coffee hot

Specifications

Size: 15.3 x 8 x 7.9 inches

Weight: 3.7 pounds

Materials: Stainless steel, plastic

Keep hot: 24 hours

Keep cold: 24 hours

Max Capacity: 85 Oz

Pros
  • It has great capacity.
  • It can be cleaned easily.
Cons
  • The beverage might be warm after a few hours. 

2. Thermos Stainless King – best stainless steel thermos

The best stainless steel thermos should have amazing specifications just like this one here, it can keep your beverage hot or cold for hours, for those looking for a specific number “24 hours”. It is made of premium stainless steel that is BPA free. Trust me, this is one thermos that’ll last for a long time. 

It is almost impossible to touch some thermos made of stainless steel when they are hot, that’s not the case with this amazing piece, you can touch it when it’s hot or cold and it won’t burn or be all sweaty. Its capacity, however, is 40 Oz, which is cool but not so cool if you have a very large family.

best stainless steel thermos

Specifications

Size: 4.3 x 3.7 x 12.3 inches

Weight: 1 pound

Materials: Stainless steel

Keep hot: 24 hours

Keep cold: 24 hours

Max Capacity: 40 Oz

Pros
  • It is easy to use and clean.
  • It keeps beverages hot for a long time.
Cons
  • It might stop working properly after a while. 
  • It has a small capacity.

3. Thermos Funtainer – best thermos for kids

Our little angels aren’t left out in the best thermos fest. Here’s one special one for your bundle of joy, your kids are going to love this. It comes in different colors, you can ask your kid which color he or she prefers. This thermos is made of stainless steel and does not rust easily, just make sure you take good care of it to avoid regrets in the future. 

It is not a coffee jar, nope, coffee is not good for your kids. The Thermos Funtainer is a food jar, that can take up to 10 Oz of food capacity. It has to ability to keep food hot for 5 hours and keep food cold for 7 hours. Using this thermos is easy and not so complicated. Whether for camping or school, the Thermos Funtainer would make a great companion for your kid.

best thermos for kids

Specifications

Size: 3.5 x 3.5 x 4.5 inches

Weight: 0.5 Pounds

Materials: Stainless steel

Keep hot: 5 hours

Keep cold: 7 hours

Max Capacity: 10 Oz

Pros
  • It does not leak.
  • It is easy to use.
  • It keeps food warm and cold.
  • It is lightweight.
Cons
  • It does not keep food warm or cold for a long time.

4. S’well 10316-B17-00140 – best travel thermos

A thermos worthy to be called “best travel thermos” should be one that can comfortably keep your beverage hot or cold for an extended period, be simple to use and carry, have a compact size. I looked so hard and found this thermos worthy to be crowned “ best travel thermos”. It is made of BPA free stainless steel, you get a completely toxic-free material.

Aside from being able to keep coffee hot for 12 hours and cold for 24 hours, this amazing travel thermos has a compact size that will fit into your travel bag or car cup holder. You can comfortably pack this thermos in your bag without having to worry about a mini-nuke destroying your stuff, the outer part of this thermos doesn’t get hot.

best travel thermos

Specifications

Size: 3.3 x 3.3 x 9.2 inches

Weight: 9.9 ounces

Materials: Stainless steel

Keep hot: 12 hours

Keep cold: 24 hours

Max Capacity: 20 Oz

Pros
  • It is lightweight.
  • It is easy to use and clean.
  • It has an amazing design.
Cons
  • It might rust with time.
  • It might leak with time.

5. Iron Flask Sports Water Bottle – best thermos for cold drinks

Looking for the best thermos for cold drinks? Well, here you go. The Iron Flask Sports Water Bottle can keep your beverages cold for up to 24 hours, now that’s something I know you’d love to hear. It comes in different sizes to choose from (14-64 Oz). It is made of stainless steel that is completely safe to drink from. 

The best feature of this thermos must be the three different straw lids that it comes with. You get a stainless steel lid, flip lid, and a carabiner straw. Now that’s something you don’t see every day. It has a beautiful finish that you’ll love, this thermos is almost perfect. Don’t forget to thank me when you purchase it and see its wonders.

best thermos for cold drinks

Specifications

Size: 3.74 x 13.94 x 3.94

Weight: 1.4 Pounds

Materials: Stainless steel

Keep hot: 12 hours

Keep cold: 24 hours

Max Capacity: 64 Oz

Pros
  • It is lightweight.
  • It is easy to use.
Cons
  • The cap might leak if not tightened properly.

6. Thermos Stainless King – best small thermos

All coffee or beverages and no food isn’t going to cut it guys. You need to eat to survive and there are amazing thermos flasks in the market that have a top-notch cold and hot retaining capability. The Thermos stainless king is a good example. It can retain hot liquid for 7 hours and cold for 9 hours.

With a dimension of 3.7 x 3.7 x 5.5 inches, you’ll have no issues with counter space or where to keep this thermos. It is lightweight too, it weighs 4.8 ounces which means it should not be much of an issue carrying it around. My favorite part about the Thermos Stainless King is the ability of the outer body to remain cold when hot liquid is inside it.

best small thermos

Specifications

Size: 3.7 x 3.7 x 5.5 inches

Weight: 4.8 ounces

Materials: Stainless steel

Keep hot: 7 hours

Keep cold: 9 hours

Max Capacity: 16 Oz

Pros
  • It is easy to clean and use.
  • It retains heat and cold well.
Cons
  • It cannot take more than 16 ounces.

7. Cresimo Thermal Coffee Carafe

Here’s yet another amazing thermos available for purchase. It has an advanced vacuum insulation technology that locks in the temperature of your beverage thus preserving flavor and freshness. This thermos can keep your drinks hot for 12 hours or cold for 24 hours. If you are looking at serving a lot of people, this thermos would help accomplish the task, it has a capacity of 68 Oz.

The Cresimo’s large mouth opening makes it easy to pour from and clean. Its outer body remains cool even when you add hot liquid inside it. It also has a cool handle that makes pouring easier. In all, this thermos would serve well. It would be a great fit for home or office if necessary.

Best Thermos

Specifications

Size: 10.8 x 6 x 6 inches

Weight: 1.8 pounds

Materials: Stainless steel

Keep hot: 12 hours

Keep cold: 24 hours

Max Capacity: 68 Oz

Pros
  • It is easy to use and clean.
  • Its body doesn’t get hot after pouring hot liquid inside.
Cons
  • It does not keep coffee hot for a long time.

8. Sumerflos Thermal Coffee Carafe 

With a capacity of 50 Oz, this thermos will serve up to 6 cups and for me, that’s okay. Have you ever used a thermos that doesn’t retain heat or cold at all? Here’s why that happens, most thermoses don’t have lids that seal the top completely, vapor might escape and desired temperature lost. That’s not the case with the Sumerflos thermal coffee carafe, it an amazing food grade sealing lid, it is completely leak proof.

Using it is easy, just use your thumb to press the button switch and then pour-over. I love the fact that the cover is dustproof, that’s amazing. It also has a wide opening at the top which makes it very easy to clean.

Best Thermos

Specifications

Size: 9.5 x 5.3 x 5.3 inches

Weight: 1.86 pounds

Materials: Stainless steel

Keep hot: 16 hours

Keep cold: 24 hours

Max Capacity: 50 Oz

Pros
  • It has an easy to hold ergonomic handle.
  • It is easy to use.
  • It doesn’t leak.
Cons
  • It can’t keep coffee hot for too long.

9. Thermos The Rock Work Series

Hey there, meet Thermos The Rock Work Series, it’s non-slip, sweat-proof, and convenient to carry around. This thermos would serve well if you are going camping or hiking. It is not heavy, it does not take much space and can retain cold and hot beverages for up to 24 hours. It is made of durable stainless steel material on the inside and outside, don’t worry, it is BPA free and won’t harm you in any way.

This one works differently but is easy to use, all you’d have to do is twist the stopper and pour the beverage into a cup. The exterior stays cold even when the hottest of beverages is inside. The Thermos The Rock Work Series is one of many special thermoses available for purchase.

Best Thermos

Specifications

Size: 5.3 x 5.1 x 12.5 inches

Weight: 1.9 pounds

Materials: Stainless Steel

Keep hot: 24 hours

Keep cold: 24 hours

Max Capacity: 33 Oz

Pros
  • It is sweat proof.
  • It is non-slip.
  • It is easy to use. 
  • It has a compact size.
Cons
  • The lid might have issues with time.
  • It might stop keeping water hot with time.

10. Pykal SplashProof Coffee Carafe Airpot Dispenser

Here’s one with an automated process. This special thermos by Pykal introduces an innovative way of pouring over coffee from a thermos, using this thermos is easy, all you have to do is adjust the nozzle, place your cup for extract, and press the button to start the serving process.  It can keep your coffee or other beverages hot or cold for up to 24 hours. 

The best part about using this thermos is that you don’t have to carry it up and pour over traditionally, just press a button and let the thermos work for you. It is made of stainless steel that won’t rust easily. The nozzle is extendable/adjustable to serve your cup without annoying spills.

Best Thermos

Specifications

Size: 7.5 x 7.5 x 13.8 inches

Weight: 5.03 pounds

Materials: Stainless steel

Keep hot: 24 hours

Keep cold: 24 hours

Max Capacity: 120 Oz

Pros
  • It pours automatically.
  • It is easy to use and clean.
  • It has great capacity.
Cons
  • It is quite heavy.
  • The body isn’t dust-proof.

Best Thermos

Factors To Consider Before Buying A Thermos

Checking these factors before purchasing a thermos through here or anywhere else will help you choose the best of the best.

Size

If you want to go hiking, you’ll need something small, not too large and able to fit your bag. If you are getting a thermos for your family, a large one would be the perfect fit. But be sure to check the dimensions of the thermos before buying it so that your new thermos doesn’t get to contend with your coffee maker in terms of counter space. 

Material

I have seen thermos made of glass, it looks beautiful but I won’t buy a glass thermos, a glass thermos is a water bottle that can’t keep water cold or hot for an extended period. The best kind of thermos is made of stainless steel.

Capacity

Thermoses come in various capacities, the highest I have seen is 120 Oz. If you’ll be filling a whole lot of cups from your thermos, you should get one that has a large capacity to serve all cups. 

Cold/Hot time

Some thermoses can retain heat up to 12 hours and cold for 24 or fewer hours, depending on your preference you should check the thermos’s ability to retain heat or cold.

Best Thermos

How To Prime Thermos Before Using It

You need to prime your thermos before adding hot coffee or cold beverage to it, as funny or weird as this may sound it is completely true. Priming here simply means getting your thermos ready. 

If you are going to add hot coffee to your thermos, it is advisable to prime it and you can do this by simply adding hot water to your thermos and allow it to sit for about a minute, then pour it out and then add your hot coffee. The same thing goes for cold beverages, you should add very cold water and allow it to sit for about a minute, pour it out then add your cold beverage. 

Maintenance

Here are some do’s and don’ts that’ll make your thermos last for a long time before needing a replacement.

  • Clean your thermos with warm water regularly.
  • Don’t use bleach or abrasives to clean your thermos.
  • Do not overfill your thermos.
  • Avoid storing carbonated drinks in your flask.
  • Do not use a microwave to prime your flask.
  • Do not put your thermos in a dishwasher.
  • Do not submerge your thermos in water.

FAQs

How long is coffee good in a thermos?
It depends on the kind of thermos you have. If your thermos is completely airtight, it’s insulated walls will help to preserve the heat.

The longer the heat is preserved, the longer your coffee stays fresh. As for cold coffee, it should stay fresh for a long period.

Can I reheat coffee with cream?
No! Reheating coffee will destroy your coffee flavor and taste. If you make coffee and it gets cold before you drink it, you can simply discard it and make another.

Coffee tastes a whole lot better when it is freshly roasted, ground, brewed and served hot. Don’t ever think of reheating cold brew coffee, that would be barbaric.

Are thermos flasks safe?
Thermos flasks are completely safe to eat or drink from, this is, however, dependent on the kind of thermos flask you have. If you have a stainless steel thermos, it is safe to use it. Most thermos made of stainless steel is BPA free.

If your hot drink or food gets cold in a thermos flask, I wouldn’t advise you to eat or drink from it, unless it’s water.

Can you put coffee in thermos?
Yes, you can put your just brewed blazing hot coffee inside a thermos, but you need to be sure the thermos will be able to keep the coffee hot for a long time.

You can alternatively use your thermos as a compartment for storing hot water for coffee brewing.

Our Top Pick

Vondior Thermal Coffee Airpot

best thermos for keeping coffee hotHere’s my favorite thermos and here are some major reasons why I chose it.

  • It keeps beverages hot/cold for 24 hours.
  • It has an automatic dispense button.
  • It has great capacity.
Check Price >>

A friend of mine bought this thermos as was always singing its praises, I never believed anything he said about this thermos because of experience with other low-class thermoses. 

After carefully thinking I finally decided to go for this Thermal Airpot and I must say… “I love it”.

It is very easy to use, it requires no handle, all you need to do is press a special button at the top and coffee will be dispensed automatically. 

It can keep your beverages hot or cold for up to 24 hours. I don’t like vigorous cleaning, this thermos doesn’t require hours of scrub to clean. It has been serving me well, and I am sure you won’t be an exception. It’ll surely serve you well.

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