Top 5 Best Thermoses Reviews

If you need to keep hot beverages hot or cold beverages cold, a thermos is a must. Choosing the best thermos that can last for several years is really a good decision. And it can pay for itself in the following years.

What Is a Thermos?

When it comes to a thermos, it is also known as a Dewar or a vacuum flask and it acts as insulating storage vessel to keep hot or cold beverages or liquids. A thermos can help to prolong the amount of time which the beverage (or other liquid) maintain the ideal temperature. The water bottle usually features a double wall that is used to enclose a vacuum and it is also lined with an insulating material (like polystyrene) to maintain the perfect temperature.

Best Thermos

On the market, there are many different thermoses. And sometimes, it is a little difficult to choose the best one. Fortunately, we made this list of top 5 best thermoses due to their abilities to maintain the ideal temperature, prices, ratings, as well as customer reviews.

Thermos Stainless King Beverage Bottle

Thermos-Stainless-Beverage-Bottle-MidnightThis best thermos is designed to be sturdy, strong and leak-proof. With its patented vacuum insulation technology, it can keep your cold or hot beverages or drinks still cold or hot for up to 24 hours. This is very cool. Both the interior and the exterior of this bottle are built with stainless steel and other materials are all BPA-free. And it is able to keep this bottle cool and sweat-proof to touch. It also includes a twist and pour stopper that is specially designed, a handle that is compact and fold-flat and easy to handle and carry, and an insulated serving cup lid which is also made of stainless steel.

The manufacturer is also one of the leading manufacturers who specialize in designing and manufacturing insulated containers. This model comes in 2 different colors. On Amazon, it is also one of the most popular and best-selling thermoses, and it receives highest ratings and plenty of customer reviews. Ant it is also a fun option for your kids. Highly recommended.

Stanley Classic Vacuum Bottle

Stanley-Classic-Vacuum-Bottle-HammertoneThis model also can maintain the ideal temperature of your cold and hot drinks for up to 24 hours. You also don’t need to worry about any rusting problem thanks to its stainless steel and BPA-free construction. And its hammertone powder coat is very durable, and it can suffer from taking a beating. It offers the maximizing capacity but has a very compact design, so it only takes a little space. No matter where you plan to go, it is convenient to take. It features a pour-through stopper that is leak-proof and very convenient, and an insulated lid that also can be used as a cup. The lid is also very easy to fill, cleaning and ice compatibility due to its wide mouth feature.

This bottle has 2 colors to choose from and it comes in a wide range of sizes for you to choose from. Therefore, you can always find the ideal capacity according to your needs. The manufacturer is also very famous and this water bottle is also one of the best-selling thermoses on Amazon. A lifetime warranty is also included to support.

Contigo Autoseal West Loop Stainless Steel Travel Mug

Contigo-Autoseal-Stainless-Travel-16-OunceThe double-wall stainless steel construction which is vacuum-insulated can keep any liquids cold for up to 12 hours and hot for up to 5 hours. This one is very durable and sweat-proof for easy holding. All the materials it uses are BPA-free. It has a button lock and an one-touch autoseal lid that can seal automatically, so sips prevent any spill, leak and splash. It is very easy to use and you can just use one of your hands to operate it and the handle is very comfortable to hold. The cleaning job is also pretty easy and the lid and body are dishwasher safe. Its compact design makes it occupy the minimal space but maximize the capacity. This Best travel mug also fits most standard single-serve brewers, as well as car cup holders.

It is one of the best-selling travel mugs on Amazon and it comes in several colors and 3 sizes for you to choose from. And it is also very affordable. On Amazon, you can find there are over 5,700 5-star reviews. A lifetime warranty is also included. Highly recommend!

Hydro Flask Vacuum Insulated Stainless Steel Water Bottle

Hydro-Flask-Insulated-Stainless-GraphiteThis water bottle is very lightweight and its stainless steel, BPA-free, double wall vacuum insulated construction makes it can keep cold liquids cold up to 24 hours and hot liquid still hot up to 6 hours. Its nonstick-coated interior makes it very easy to clean and doesn’t transfer any odor and flavors to the next liquid you are going to fill. To add durability, this best water bottle features a signature powder coat finish. It is also very easy to grip. You don’t need to worry about sliding problem, because it is sweat-free and can prevent heat transfer and condensation. It also features a wide mouth opening, so it is easy to fill. For example, if you have a hot and cold water cooler dispenser, the wide mouth opening makes the filling process pretty easy. A safety lock is also included to prevent any accidental spilling. It maintains a large capacity but keeps compact.

This bottle also uses some recyclable materials. In order to support charities and nonprofits, 5% of each purchase is promised to donate. Therefore, because of your purchase, you also make a contribution to nonprofits and charities. It comes in several colors and sizes for you to choose from.

Zojirushi SM-KHE48AG Stainless Steel Mug

Zojirushi-SM-KHE48AG-Stainless-Steel-16-OunceThis best mug is highly recommended, because it is very attractive, sturdy and lightweight. It features vacuum insulation, single-hand operation, as well as special locking mechanism. Its stoppers is very easy to disassemble for easy cleaning. It is compact but also maintains a good capacity. This bottle offers many sizes and colors to choose from. A 5-year warranty on heat retention is also included.

This is our list of top 5 best thermoses you can rely on. If you need one, you can choose one of them.

Thermos Buying Guide

If you like to drink hot coffee or tea, or you just like to spend a lot of time outdoors, a thermos is a good choice for you. And how to choose the best thermos is very important.

However, it is a little difficult to find the best one, because there are so many thermos on the market. Well, the first thing you need to consider is that what you plan to use a thermos for. For example, if you plan to use a thermos to hold a hot meal, you should choose a thermos with a big mouth. And if you need a thermos for hot tea or other beverages, you should choose a thermos that has a narrow neck, which can help you to pure the liquid easily. And, on the market, there are many universal thermoses. They come with several separate compartments. For example, a compartment is used to pour coffee or tea, and another bigger one is used to preserve a hot meal.

Once you have one, you can bring tea for a hike or a picnic. When it comes to buying the best thermos, there are some factors which should be considered.


Do you know what materials are used to make a thermos and whether they influence the durability and functionality? Here is the answer:

  • Glass Chamber – The thermos’s chamber can be made of glass. Considering hygienic factors, glass is a good choice. It is pretty easy to clean, while the content can be preserved well. However, glass has a major problem that it is fragile. Therefore, if you choose a thermos that uses glass to build its chamber, you’d better avoid a clumsy movement, or it will break into pieces.
  • Metal flask – A metal flask is a durable and practical alternative. Stainless steel is preferred to use. This is because stainless steel is corrosion-proof. And it is not so easy to break down.
  • Plastic bottle – A plastic is not a good option. Poor plastic tends to retain heat, even if a special mirror coating is used. And plastic is also very fragile. It is prone to shattering and breaking.

The outer casing also uses different materials that have their own pros and cons. The plastic housing can help to reduce the overall height, making it portable to carry around. I think no people would like to carry a heavy thermos. Metals housing is corrosion resistant, making it more durable and practical. And this also means a solid construction. Of course, you also can choose a glass housing but it is not so practical, compared with the metal or plastic housing.

The Volume

The second thing you need to consider is the volume of a thermos you would like to have. And this may be determined by many factors:

Do you just want a simple extra serving of tea or coffee or do you want to have multiple servings. Will you share your beverages with your family, friends or co-workers? And how far will you take it for a travel? And if you want to have an extra cup, you can buy a thermos cup. Generally, the more amount of liquid you will consume, the bigger thermos you will need.

The Cap

The cap of a thermos is also very important. It must insulate the heat inside and will not allow to lose heat. If the lids are made of glass, they often are equipped with corks. However, it is not the best option, because this can cause imperfect sealing or leaking problems. An optimal choice is the screw cap.


Your budget is also crucial. Generally, the price determines the quality of a thermos. Well, this doesn’t mean high costs represent high quality, but at least you can likely find a high quality at a higher price. The price is influenced by its brand, materials used, volume and other extra features. Generally, you can find a good thermos if you would like to pay $24 or more.

Useful tips

  • When buying a thermos, the following tips should be especially paid attention to:
  • Take a good look around a thermos to check out any scratch or visible defects. If you find something bad, don’t buy it, because these problems can influence the performance obviously.
  • Sniff the thermos. If there is any bad smell coming from it, this means it may use unsafe materials.
  • Shake it. If there is any vibrate or sound, it is not a good thermos.
  • Choose a good brand from a famous manufacturer.
  • Check the cap and the cover carefully and a tight insulation is required.

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