Advertising Disclosure Thermal Flasks Comparison - September 2025
6 Best Thermal Flasks In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Advertising Disclosure
| 1 Best Choice  9.9Exceptional | 2 Best Value  9.8Exceptional | 3  9.6Exceptional | 4  9.5Excellent | 5  9.4Excellent | 6  9.3Excellent |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelThermos - Stainless King Midnight Blue Travel Flask (1.2L) Premium Leak Proof Insulated Tea & Coffee Flask, Hot & Cold Drinks, Built-in Cup, Twist-Pour Stopper, BPA-Free, Durable Steel | Model Thermos Stainless King 470ml Multi-Purpose Thermos Flask - Original-Style Flask can be used as Travel Mug or Insulated Water Bottle for Daily Commute & Weekend Adventures – Matt Black | Model THERMOcafè by THERMOS Stainless Steel Flask, Multi-colour, 1.0 Litre | Model Milton Vacuum Flask for Hot Drink 1 Litre (34 oz), Stainless Steel Double Walled Insulated Water Bottle for 24 Hour Hot and Cold Drinks with Cover, Leak Proof, BPA Free, Thermosteel Flip Lid 1000 ml | Model YINJAM Travel Mug Reusable Insulated Coffee Cups Vacuum Insulation Stainless Steel Thermal Bottle for Hot Cold Drinks (Black, 510ml) | Model Mont-Clair H2O Stainless Steel Water Bottle, Vacuum Insulated - BPA Free, 12h Hot & 24h Cold Drinks, Metal Water Bottle 500ML Leakproof, Ideal for Adult, Kids, Running - Black |
BrandThermos | Brand Thermos | Brand Thermos | Brand MILTON | Brand YINJAM | Brand Mont-Clair |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews |
Features | |||||
Watertight 9.9 | Watertight 9.9 | Watertight 9.8 | Watertight 8.9 | Watertight 8.9 | Watertight 8.1 |
Simple to clean 9.6 | Simple to clean 9.6 | Simple to clean 9.6 | Simple to clean 9.1 | Simple to clean 9.4 | Simple to clean 8.9 |
Easy to grip 9.8 | Easy to grip 9.6 | Easy to grip 9.6 | Easy to grip 9.1 | Easy to grip 9.9 | Easy to grip 9.6 |
Tech Specs | |||||
item weight 660 g | item weight 320 g | item weight 17.99 Ounces | item weight 530 Grams | item weight 300 g | item weight 330 g |
customer reviews4.7 4.7 out of 5 stars 21, 762 ratings 4.7 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 4, 271 ratings 4.7 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 20, 303 ratings 4.6 out of 5 stars | customer reviews 4.2 4.2 out of 5 stars 93, 886 ratings 4.2 out of 5 stars | customer reviews 4.4 4.4 out of 5 stars 1, 474 ratings 4.4 out of 5 stars | customer reviews 4.8 4.8 out of 5 stars 192 ratings 4.8 out of 5 stars |
product dimensions 3.74 x 4.29 x 12.32 cm 659.98 g | product dimensions 25.2 x 8.41 x 5.99 cm 320 g | product dimensions 31 x 87 x 87 cm 510.01 g | product dimensions 33.27 x 9.78 x 9.78 cm 530 g | product dimensions - | product dimensions 26.5 x 26.5 x 7 cm 330 g |
special features Double-walled stainless steel with 1.20 litre capacity, Dishwasher safe top rack , Practical carry handle, Completely leak-proof and therefore leak-proof, Insulation does not give temperature to the outside | special features Hot 12 Hours, Cold 24 Hours | special features - | special features - | special features Leakproof, Double Wall | special features Double-Walled Insulation, BPA free, Leakproof |
color Glossy Black | color Black | color - | color - | color Black | color Black |
capacity 1.2 litres | capacity 470 Millilitres | capacity - | capacity - | capacity - | capacity 482 g |
material Stainless Steel | material Stainless Steel | material - | material - | material - | material Stainless Steel |
Available On | Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1ThermosThermos - Stainless King Midnight Blue Travel Flask (1.2L) Premium Leak Proof Insulated Tea & Coffee Flask, Hot & Cold Drinks, Built-in Cup, Twist-Pour Stopper, BPA-Free, Durable Steel
9.9 Watertight9.8 Easy to grip9.6 Simple to cleanWhy we love it
Keeps drinks hot or cold for 24 hours.
Durable stainless steel construction.
Convenient twist and pour stopper.
-
9.8
2Thermos43% Off
Thermos Stainless King 470ml Multi-Purpose Thermos Flask - Original-Style Flask can be used as Travel Mug or Insulated Water Bottle for Daily Commute & Weekend Adventures – Matt Black
9.9 Watertight9.6 Simple to clean9.6 Easy to gripWhy we love it
Retains temperature for extended periods.
Durable and robust design.
Convenient pouring mechanism.
Our ranking system
The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
