Best Coffee Thermos 2021 – Buying Guide

A coffee thermos is the ideal solution for those coffee lovers who need their coffee on the run. It means that on those hectic and rushed mornings when you pushed snooze one too many times, instead of skipping your morning brew, simply pour it into your thermos and you are good to go! A quick look and you will find Thermos’ in every shape, size and color! We have done a lot of research to bring you our list of the best coffee thermos for 2021.

What is a Thermos and how does it work?

A thermos is basically a double walled bottle that usually has the air between the two walls sucked out during construction which creates a vacuum. A thermos is designed to keep beverages hot by minimizing heat loss. The vacuum prevents heat loss via convection (through the air). The tight stopper prevents air entering or leaving. And the reflective lining prevents heat loss via radiation by reflecting it straight back. Basically it means you can enjoy a hot drink hours after it was made.

What to look for in a Thermos?

If you look you will find there is a thermos in every size, shape and colour imaginable! It can be a bit overwhelming knowing what one to go for so we have compiled a list of things to think through before deciding what thermos to buy:

Size and Volume

The first thing to think about is when are you planning on using your thermos and what will you be using it for? How much coffee do you usually brew and consume? Is it to be used for that daily commute to work or are you taking it on your family camping trip? The use will determine what type you opt for. If it is just for yourself you might want one that is just a single cup size whereas if the whole family will be using it you will need one with a larger capacity.

Heat Retention

How long are you needing to keep your coffee hot or cold for? If you are looking for the best thermos for keeping coffee hot for a long time you will need a good quality double walled vacuum thermos whereas if it just for that short commute you could opt for a cheaper plastic one.


Thermos’ come in all shapes and sizes so a few things to consider when thinking about buying one:

  • How are you planning on drinking your coffee? Do you want a thermos with a lid you could drink straight out of or a detachable cup?
  • How easy is it to clean? Is it dishwasher safe or does it have a lot of fiddly parts you need to take apart to clean?
  • How easy is it to carry and transport? Is it big and bulky or light and compact?
  • How easy is it to use? Does it have a handle to help you pour? Do you have to remove a stopper to pour out your coffee?
  • Is it both leak-proof and spill-proof? Leak-proof means it is not going to drip or leak when it is closed correctly. Spill-proof means if you accidentally tip it over it is not going to spill because it has a lid lock safety mechanism.
  • How durable is it? Is it going to last that hiking trip or leak all through your pack?

When it comes to thermos’ there is no one size fits all. You need to work out what you are looking for before deciding which one to get. Below we have outlined what we think are the best coffee thermos’ to suit various needs. We believe any of these options should work well.

The Best Coffee Thermos

Stanley Classic Thermos- The Adventure Thermos

Best Coffee Thermos

The Stanley Thermos has been around since 1913 and has stood the test of time. We think this is the best thermos for coffee to take on that hiking or camping trip. The Stanley is a durable thermos made of vacuum insulated double walled stainless steel that can take a beating and still look good. It comes in two colors: green or navy, and is available in multiple sizes (with or without a handle). The lid also doubles as a cup. Perhaps the best thing about the Stanley is that it comes with a lifetime warranty – so when the company says it is built for life you know they mean it!


  • Lifetime warranty
  • Leak-proof
  • Durable
  • Easy to clean
  • Reliable brand


  • Some people have had issues with vacuum seals that didn’t seal properly, can send back for a replacement
  • The larger models are heavy and bulky

Thermos Stainless King 68 Ounce Beverage Bottle- The Family Thermos

Best thermos for keeping coffee hot

  • Sizes available: 68oz
  • Heat retention: Hot or Cold= 24 hours

With over 110 years in the industry Thermos has a reputation for producing durable, reliable and high quality products and this one is no different. Able to hold a whopping 68 ounces or 2L of liquid this is the perfect family thermos. Made of double walled, vacuum sealed stainless steel this thermos is available in 3 different colors (Black, Blue or Stainless Steel). It features a handle on the side for ease of pouring, and the lid also doubles as a cup. It also has a handy twist and pour stopper so you don’t have to remove the stopper (and lose heat) to pour out your brew. Thermos also offers a 5 year warranty on this thermos.


  • Large capacity
  • Leak-proof
  • Durable
  • Reliable brand
  • Easy to clean
  • Stylish, functional design


  • Fold-flat handle rattles
  • Recommended to preheat/ cool thermos to maximise heat retention
  • Is a huge thermos

Thermos Vacuum Compact Beverage Bottle- The Portable Thermos

Best Coffee Thermos

  • Sizes available: 16oz, 25oz, 32oz
  • Heat retention: Hot= 12 – 24 hours depending on size
    Cold= 24 hours

Another great model in the Thermos range is the compact beverage bottle. This compact and lightweight thermos is great for travel and easy to store away. Made of double walled stainless steel, it is available in 2 different colors (black or stainless steel). This thermos has a stylish, eye-catching design and is a high quality product coming with a 5 year warranty. Like the King model it comes fitted with the easy twist and pour stopper and has a lid that doubles as a cup. This is an ideal choice to keep your favorite beverage close at hand.


  • Durable
  • High quality
  • Leak-proof
  • Easy to clean
  • Compact and portable


  • No grip on smooth surface so some have found it difficult to pour

Contigo 16 Oz Autoseal Travel Mug- The Budget Thermos

Best coffee thermos

  • Sizes available: 16oz, 20oz, 24oz
  • Heat retention: Hot= 5 hours
    Cold= 12 hours

The Contigo Autoseal Mug is perfect for the commuter who is looking for a travel mug that won’t break the bank. The Contigo is fitted with an autoseal lid, that automatically seals between sips, to eliminate spills and leaks. This sleek mug is designed to fit in most car cup holders and to be used one handed so is perfect to drink that morning brew as you navigate your way through traffic. The lid also has a lock button to prevent accidental spills. Made of double walled vacuum-insulated stainless steel it is available in 20 different colors so you are sure to find one to fit you. 


  • Leak-proof and Spill-proof
  • Portable
  • Affordable
  • Easy to use with one hand


  • Hard to clean, especially the lid
  • Paint on outside prone to peel

Zojirushi Stainless Steel Mug- The On-The-Go Thermos

Best thermos for coffee

  • Sizes available: 12oz, 16oz
  • Heat retention: Hot or Cold= 6 hours

The Zojirushi mug is another great contender for the commuter thermos, similar to the contigo it is designed to be used on the go with a flip lid that is easy to drink from. It comes fitted with a lid lock to prevent accidental leakage. Once again made of stainless steel vacuum insulation it is available in 8 different colors. The Zojirushi has a light and portable design, making it great for the commuter who wants a compact mug. Another great feature is that it is very easy to clean with a stopper that can be disassembled for cleaning. The Zojirushi comes with a 5 year warranty on the vacuum insulation.


  • Portable
  • Easy to drink on the go
  • Easy to clean
  • Light and Portable
  • Leak-proof


  • Paint on outside peels over time

Thermos Stainless Steel Carafe – The Coffee Sippers Thermos

Best thermos for keeping coffee hot

We all know coffee sippers who seem to have a cup of coffee in hand all day long. This is the thermos for them! Once again made by the reliable brand Thermos, this carafe is ideal for keeping a pot of coffee hot all day long. Designed for ease of use it comes fitted with a pour spout that opens with the push of a button and a handle for simple one-handed pouring. Made of double walled vacuum sealed stainless steel this thermos will look good in any home or office. The carafe also comes with Termos’ 5 year warranty on the vacuum insulation.


  • Good quality
  • No spill spout
  • Durable
  • Stylish design


  • Not portable
  • Difficult to clean the lid (the carafe is dishwasher safe)


Well we hope this review has been helpful in highlighting the best coffee thermos’ available. A thermos is the ideal choice to keep your favorite beverage close at hand wherever life’s adventures may take you. As you can see there are a huge range of Thermos’ to fit every need so it really comes down to you and what you are looking for.

If you have an opinion on what is the best coffee thermos we would love to hear from you in the comments below! What coffee thermos do you use? How long does it keep your coffee hot or cold for?

Happy Buying!

Helpful tips:

  • To maximise heat retention it is best to pre-heat or cool the thermos before use by filling it with either hot or cold water and allowing to stand for 3 minutes.
  • Clean your thermos using warm water and dishwashing liquid, then rinse with hot water. Do not submerge in water as it could damage the outside coating on the thermos. Similarly it is best not to wash them in a dishwasher as the heat could damage the insulation and the outside coating.
  • To remove stains or coffee odours fill the thermos with hot water and add 1 tsp of bicarbonate soda. Leave to soak overnight with the stopper OFF. Rinse out with hot water before re-using.
  • Never use bleach in your thermos as it can damage the lining.
  • Store with the stopper off and if not using for an extended period of time put a clove or tsp of salt in the bottom to prevent musty smell.

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