Best thermos flask UK

Which is the best thermos flask in 2024?

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Best of 2024: Find the right thermos flask in the UK

Whether you want your beverage to remain hot or cold for as long as possible, it is a good idea to use a thermos flask. While finding the best thermos flask may not be the most difficult thing, finding one that is perfect for your needs and situation can be more challenging, which is why it helps to know a few things. With our handy buying guide, you should be able to choose the best thermos flasks for any situation, whether it’s for your daily commute or when you’re out and about on the weekend. Here’s everything you need to know:


The 10 best thermos flasks in the UK (December 2024)

The bestseller list compares thermos flasks from multiple brands
Best choice TOP 1
Image of Thermos 183267 thermos flask
Thermos 183267
  • Safety: Cool to touch with hot liquids, sweat-proof with cold.
  • Durability: Stainless steel interior and exterior for long-lasting use.
  • Insulation: Keeps liquids hot or cold for 24 hours.
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Offer TOP 2
Image of Thermos 181109 thermos flask
Thermos 181109
  • Safety: Stays cool to touch with hot liquids, sweat-proof with cold beverages.
  • Durability: Features a robust stainless steel interior and exterior for long-lasting use.
  • Insulation: Retains hot or cold temperatures effectively with double wall vacuum insulation.
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TOP 3
Image of Thermos 170694 thermos flask
Thermos 170694
  • Safety: BPA free, cool to the touch, sweat-proof.
  • Durability: Durable stainless steel interior and exterior.
  • Insulation: Double wall vacuum insulation retains hot or cold temperatures.
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TOP 4
Image of Thermos 184807 thermos flask
Thermos 184807
  • Capacity: 470ml with a full-size folding spoon.
  • Durability: Stainless steel interior and exterior.
  • Insulation: Keeps food hot for 9 hours, cold for 14.
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TOP 5
Image of Thermos 184804 thermos flask
Thermos 184804
  • Maintenance: Simple cleaning with warm soapy water.
  • Practicality: Easy pour lid allows for convenient use.
  • Retention: Excellent at retaining temperature, keeping beverages hot for longer periods.
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TOP 6
Image of Thermos 185515 thermos flask
Thermos 185515
  • Design: Light, compact, and allows greater capacity in a smaller size.
  • Insulation: Double-walled vacuum insulation maintains temperature up to 24 hours.
  • Durability: Virtually unbreakable, dent-resistant stainless steel body ensures long-lasting use.
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TOP 7
Image of Thermos 185198 thermos flask
Thermos 185198
  • Portability: Light, compact design for easy transport and storage.
  • Durability: Made of durable stainless steel inside and out.
  • Insulation: Keeps liquids hot for 10 hours, cold for 24 hours.
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TOP 8
Image of Thermos 4002256047 thermos flask
Thermos 4002256047
  • Safety: Cool touch with hot liquids, sweat-proof with cold.
  • Durability: Stainless steel interior/exterior, Drinklock sealing lid.
  • Insulation: Keeps hot for 5 hours, cold for 9 hours.
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TOP 9
Image of Thermos 200620 thermos flask
Thermos 200620
  • Durability: Stainless steel ensures long-lasting use and resistance to wear.
  • Portability: Lightweight design makes it easy to carry anywhere.
  • Insulation: Retains temperature for hours due to Thermos vacuum insulation technology.
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TOP 10
Image of Thermos 104110 thermos flask
Thermos 104110
  • Safety: Cool to touch with hot liquids, sweat-proof with cold.
  • Durability: Stainless steel build with protective silicone rings.
  • Insulation: Keeps beverages hot or cold for an extended period.
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Table of contents
  1. Read the definitive thermos flask buying guide
  2. View the thermos flask picks and see how they rank in the top list

thermos flask buying guide

Do you want to buy a good thermos flask? This is all you need to know.

A short explanation: What are thermos flasks?

Image of thermos flasks

A thermos flask, often referred to simply as a thermos, is a type of vacuum flask used to insulate the temperature of its contents. It features a double-walled container, with an airtight cavity separating the two walls to prevent heat transfer, helping to keep beverages hot or cold much longer than other containers. While most look similar to water canteens, thermos flasks can come in many shapes and sizes.

What are the benefits of good thermos flasks?

The best thermos flasks keep drinks hot for many hours, making it a great buy for anyone that enjoys coffee, tea, or other hot beverages. It’s not just for warm drinks, as a thermos can keep liquids cold, too. This is why a good thermos flask is a great buy for various situations, especially outdoor activities like camping, hiking, or fishing, as well as more everyday activities like taking the kids to school. Plus, it’s handy for taking hot or cold drinks to work, and can even save money by reducing the amount tea and coffee you buy!

How to choose the best thermos flask in 2024?

Additional image of thermos flask

Choosing the best thermos flask can be difficult if you don’t know what to look for, so here are some things to consider:

  • Capacity: Thermos flasks come in various sizes, so it helps to think about how many people might be using it at one time. For example, a large thermos flask around the 1L to 2L capacity is great for holding beverages the entire family can enjoy on a long trip, while a smaller flask is better for individual use. You may even want to buy both sizes for more options!
  • Beverage: One of the main reasons for buying a thermos, it is important to consider what type of beverage you want to keep hot or cold. If you just want something that can hold coffee or tea, then there are many types of flasks that are designed with these beverages in mind. For example, the best thermos flask for retaining the aroma of coffee will be charcoal layered for the best insulation.
  • Cleaning: You should look at a thermos flask and consider how easy it will be to clean. While many people focus on insulating technology, it is important to remember that you will need to clean this product! Most thermos flasks are cleaned with warm, soapy water and left to air dry, but some can be cleaned in a dishwasher, which may be worth considering if you want a more convenient option.

Which types of thermos flasks are available to buy in the UK?

Thermos flasks are categorised by size, shape, and design, with some popular types listed below:

  • Tall and Narrow Flasks: The classic type of thermos flask, it is tall and narrow in design, usually made from glass and later metal, and the go-to option for carrying hot drinks like coffee, although they can be used for foods too.
  • Wide-Mouthed Flasks: A variation of the classic thermos flask that has a wider mouth, it tends to be made from metal and is the best thermos for hot foods like soup and stews, although liquids can be carried too. The wider mouth may lose heat quicker though.
  • Beverage Flasks: Also known as a thermos coffee mug when smaller sized, these are designed for carrying hot beverages, often coming with a vacuum seal and pour function to easily dispense. Taller beverage flasks can carry soups and other foods, being a common type of thermos for hot drinks.
…are you ready for the best picks of 2024?

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