10 Best Insulated Food Jars in The UK

Last updated on 12/08/2025
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Best Choice
1
9.8
Exceptional
Stanley Classic Legendary Food Jar 0.7L - Hot For 15 Hours - BPA-Free - Stainless Steel Coffee Flask - Leakproof Lid Doubles As Cup - Dishwasher Safe - Thermal Lunch Box - Hammertone Green
STANLEY
Stanley Classic Legendary Food Jar 0.7L - Hot For 15 Hours - BPA-Free - Stainless Steel Coffee Flask - Leakproof Lid Doubles As Cup - Dishwasher Safe - Thermal Lunch Box - Hammertone Green
Why We Love It
  • Maintains temperature for hours.
  • Leak-resistant with multi-purpose lid.
  • Effortlessly top-rack dishwasher safe.
Main Highlights
  • KEEP IT HOT OR COLD: Our stainless steel food flasks for hot food are made with superior insulation that maintains temperatures inside regardless of the temperature outside and keeps food hot for 15 hours or cold for 18 hours
  • DURABLE AND SAFE: This Stanley Food Flask is built to last with 18-8 high-quality food-grade stainless steel construction that’s rugged and rust-proof; It’s also made with BPA-Free materials, keeping its contents safe to consume
  • MULTI-PURPOSE LEAK PROOF LID: The Stanley food flask is designed with a leak-resistant lid; The wide mouth of the food container helps with easy pouring into the lid that doubles as a cup
  • EASY TO CLEAN: This food storage is designed to clean easily; Every piece of this stainless steel lunch box is dishwasher safe, top rack only
  • BUILT FOR LIFE: 'Built for Life' has been the Stanley promise since 1913, manufacturing rugged, high-performance products that last a lifetime.
9.8
Exceptional
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Best Value
2
9.6
Superb
Save 3%
Stanley Adventure To-Go Food Jar 0.53L - 6 Hours Hot - 6 Hours Cold - Leakproof Food Flask - Easy Clean Wide Opening - Dishwasher Safe - BPA-Free Soup Flask - Abyss
STANLEY
Stanley Adventure To-Go Food Jar 0.53L - 6 Hours Hot - 6 Hours Cold - Leakproof Food Flask - Easy Clean Wide Opening - Dishwasher Safe - BPA-Free Soup Flask - Abyss
3% OffFree Shipping
Why We Love It
  • Leakproof for on-the-go convenience.
  • Promotes sustainability, reduces waste.
  • Keeps food hot for hours.
Main Highlights
  • LEAKPROOF: The lid of this Adventure to-go Food Jar gives reassurance that your food will not spill in your bag whilst on the go.
  • SUSTAINABILITY AT STANLEY: We believe in creating a more sustainable world through our Built For Life promise and century-old brand. Stanley looks to eliminate the need for single-use disposables and increase recycled content materials every year.
  • KEEPS HOT FOR 6 HOURS: The Adventure to-go Food Jar is built to withstand anything. This stainless steel Stanley cup preserves the thermal integrity of your food for up to 6 hours. It's designed for easy cleaning and is dishwasher safe.
  • DISHWASHER SAFE: This food flask is designed to clean easily. Throw it into the dishwasher once home, ready to hit tomorrows commute or international adventure. Every piece of this stainless steel food container is dishwasher safe.
  • BUILT FOR LIFE: 'Built for Life' has been the Stanley promise since 1913, manufacturing rugged, high-performance products that last a lifetime.
9.6
Superb
Save 3%
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3
9.5
Superb
Save 6%
Sigg Gemstone Food Jar Selenite (0.75 L), Insulated Food Container for the Office, School, and Outdoors, 18/8 Stainless Steel Thermo Container
Sigg
Sigg Gemstone Food Jar Selenite (0.75 L), Insulated Food Container for the Office, School, and Outdoors, 18/8 Stainless Steel Thermo Container
6% OffFree Shipping
Why We Love It
  • Perfect for hot and cold meals.
  • Preserves temperature for long hours.
  • Dependable for food safety.
Main Highlights
  • Ideal companion - This stainless-steel thermo food container in a discreet compact design is suitable for hot and cold meals and can be taken anywhere
  • Perfect insulation - The hot food container features double-walled vacuum insulation and a copper coating allowing food to stay warm or cold for up to 11 hours
  • Practical design - The design-integrated cutlery allows you to eat directly from the food storage flask, making it ideal for lunch breaks at work or school
  • Safe food enjoyment - The insulated stainless-steel thermo container is made entirely of BPA-free and food-safe materials. The stable design prevents leakage
  • Delivery scope & details - SIGG Thermo Food Container made of stainless steel 0.75 L, hand-wash recommended, food-safe and BPA-free, article number: 8733.90
9.5
Superb
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4
9.3
Superb
Thermos Stainless King Food Flask, 470ml Capacity - Sleek Multi- Purpose Flask for Daily Food Prep - Durable Stainless Steel with Classic Midnight Blue Finish - Ideal for On-the-Go Meals & Drinks
Thermos
Thermos Stainless King Food Flask, 470ml Capacity - Sleek Multi- Purpose Flask for Daily Food Prep - Durable Stainless Steel with Classic Midnight Blue Finish - Ideal for On-the-Go Meals & Drinks
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Why We Love It
  • Keeps meals perfectly tempered.
  • Built to last.
  • Multipurpose insulated lid.
Main Highlights
  • Thermos Vacuum Insulation: Advanced technology in this thermos food jar keeps your meals hot for 9 hours or cold for 14, ensuring ideal temperature for various activities
  • Durable Construction: This insulated food container features robust stainless steel interior and exterior that withstand daily use and maintain temperature control
  • Versatile Lid Design: Insulated lid of this thermos food container doubles as a convenient bowl, reducing the need for extra dishes and making it easy to enjoy your meals anywhere, anytime
  • Temperature Control: This lunch thermos remains cool to touch with hot contents and sweat-proof with cold, providing safe handling and preventing messy condensation on surfaces
  • User-Friendly Features: This insulated food jar's wide mouth design allows for easy filling, eating, and cleaning, making it a practical choice for daily meal prep and on-the-go dining
9.3
Superb
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5
9.2
Superb
Save 12%
Thermos Stainless King Food Flask, 710ml Capacity - Sleek Multi- Purpose Flask for Daily Food Prep - Durable Stainless Steel with Red Finish - Ideal for On-the-Go Meals & Drinks
Thermos
Thermos Stainless King Food Flask, 710ml Capacity - Sleek Multi- Purpose Flask for Daily Food Prep - Durable Stainless Steel with Red Finish - Ideal for On-the-Go Meals & Drinks
12% OffFree Shipping
Why We Love It
  • Exceptional temperature retention capabilities.
  • Robust stainless steel construction.
  • Lid serves as bowl.
Main Highlights
  • Thermos Vacuum Insulation: Advanced technology in this thermos food jar keeps your meals hot for 14 hours or cold for 24, ensuring ideal temperature for various activities
  • Durable Construction: This insulated food container features robust stainless steel interior and exterior that withstand daily use and maintain temperature control
  • Versatile Lid Design: Insulated lid of this thermos food container doubles as a convenient bowl, reducing the need for extra dishes and making it easy to enjoy your meals anywhere, anytime
  • Temperature Control: This lunch thermos remains cool to touch with hot contents and sweat-proof with cold, providing safe handling and preventing messy condensation on surfaces
  • User-Friendly Features: This insulated food jar's wide mouth design allows for easy filling, eating, and cleaning, making it a practical choice for daily meal prep and on-the-go dining
9.2
Superb
Save 12%
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6
9.1
Superb
Save 34%
Stanley Classic Legendary Food Jar 0.4L With Spork - Keeps Cold For 7 Hours - BPA-Free Stainless Steel Soup Flask - Leakproof - Dishwasher Safe - Hammertone Green
STANLEY
Stanley Classic Legendary Food Jar 0.4L With Spork - Keeps Cold For 7 Hours - BPA-Free Stainless Steel Soup Flask - Leakproof - Dishwasher Safe - Hammertone Green
34% OffFree Shipping
Why We Love It
  • Keeps meals temperate.
  • Durable, safe materials.
  • Leak-proof and multipurpose.
Main Highlights
  • KEEPS HOT OR COLD + INTEGRATED SPORK: The compact Stanley food flask with spork keeps food hot or cold for 7 hours. It features a leak-resistant lid with a pressure-release valve for easy opening and a wide mouth for filling, pouring, and cleaning.
  • SUSTAINABILITY AT STANLEY: We believe in creating a more sustainable world through our Built For Life promise and century-old brand. Stanley looks to eliminate the need for single-use disposables and increase recycled content materials every year.
  • LEAK PROOF LID: This Stanley food thermal flask features a leak-resistant lid, allowing you to pack it in your backpack without spills. It also includes a stainless steel spork that fits securely in the attached bracket.
  • DISHWASHER SAFE: The wide mouth opening of the food flasks for hot food makes filling, pouring, and cleaning easy. Every piece of this stainless steel food flask is dishwasher safe.
  • BUILT FOR LIFE: 'Built for Life' has been the Stanley promise since 1913, manufacturing rugged, high-performance products that last a lifetime.
9.1
Superb
Save 34%
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7
9.1
Superb
Chilly's Food Pot - Leak-Proof, Premium Stainless Steel Reusable Food Container - Double-Walled Insulated for Hot or Cold Lunch Storage - Black - 300ml
Chilly's
Chilly's Food Pot - Leak-Proof, Premium Stainless Steel Reusable Food Container - Double-Walled Insulated for Hot or Cold Lunch Storage - Black - 300ml
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Why We Love It
  • Keeps food hot/cold longer.
  • Leak-proof airtight screw top.
  • Durable, BPA-free stainless steel.
Main Highlights
  • UP TO 6 HOURS HOT: Hot, comforting food for up to 6 hours in 500ml and 4 hours in 300ml, regardless of the outside temperature. With no need to be near an oven or microwave, enjoy your favourite hot food wherever you are.
  • UP TO 6 HOURS COLD: Keep your cold food crisp and fresh for up to 6 hours in 500ml and 5 hours in 300ml. Perfect for sunny days out at the park or on the beach. No need for a separate cool bag, just grab your pot and go!
  • DRY, LEAK PROOF, SWEAT PROOF: Our airtight screw top lid prevents soaked bags and accidental spills. The vacuum insulation means your Chilly’s Food Pot will remain condensation free.
  • SAFE, QUALITY MATERIALS, BPA FREE: Chilly’s Food Pots are constructed from durable, high-grade 304 stainless steel, for both the inside and outside walls. This preserves the flavour and freshness of your food without any tainting.
  • TAKE IT EVERYWHERE: The Chilly's Food Pot has a revolutionary design that is lightweight & compact. Perfect for hiking, storing snacks to keep you going at the gym, traveling, long transport, school & work.
9.1
Superb
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8
9.0
Superb
Dreamhigh® Thermal Food Flask, 800ml, Soup Flask with Spoon, Stainless Steel Vacuum Insulated Food Container, Leak-Proof, with Carrying Bag, Keep Hot/Cold for 12 Hours (Black)
Dreamhigh
Dreamhigh® Thermal Food Flask, 800ml, Soup Flask with Spoon, Stainless Steel Vacuum Insulated Food Container, Leak-Proof, with Carrying Bag, Keep Hot/Cold for 12 Hours (Black)
Free Shipping
Why We Love It
  • Optimal temperature retention.
  • Food-safe, non-toxic materials.
  • Leak-proof and non-slip.
Main Highlights
  • Keep food warm or cold: Dreamhigh vacuum insulation technology for maximum temperature retention of hot or cold food. Delicious and weather-independent. Keeps hot for up to 12 hours and cold for up to 12 hours.
  • Food-safe material: the interior is made of 316 food-safe stainless steel and the exterior is 304 stainless steel, BPA-free, PVC-free, non-toxic. High-quality materials ensure product safety and food health.
  • Satisfy all your needs: you can use these insulated lunch containers to keep food warm and cold, such as fried rice, soup, pasta, salad, fruit, vegetables or even nuts. Please enjoy your healthy fresh food at school or in the office even outdoors.
  • Satisfy all your needs: you can use these insulated lunch containers to keep food warm and cold, such as fried rice, soup, pasta, salad, fruit, vegetables or even nuts. Please enjoy your healthy fresh food at school or in the office even outdoors.
  • Non-slip and easy to clean: the bottom of the food container has a non-slip design to avoid falling on the floor and causing burns on the body; easy to fill, wide opening that is easy to clean. (Do not put in the microwave)
9.0
Superb
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9
8.9
Excellent
Save 11%
WayEee Food Flask, Food Flask for Hot Food Stainless Steel Food Jar with Folding Spoon-450ml (Blue)
WayEee
WayEee Food Flask, Food Flask for Hot Food Stainless Steel Food Jar with Folding Spoon-450ml (Blue)
11% OffFree Shipping
Why We Love It
  • Keeps temperature for hours.
  • Includes folding meal spoon.
  • Features release air button.
Main Highlights
  • ✔【Double Insulated Stainless Steel Design】Durable stainless steel interior designs for keeping hot and cold for 6-8 hours. Double vacuum inner design make the food and soup in the food flask insulate from outside temperature completely.
  • ✔【Folding meal Spoon Free】The external lid is made up of food grade material. It can be used for hold soup and food. The internal lid comes with a stainless steel folding spoon.
  • ✔【Release Air Button】An air hole is designed under the folding spoon in the internal lid. The gas pressure will grow when the temperate is different between inside and outside. At the same time, the food flask may not be open easily. Just push the air hole button, all problems are solved.
  • ✔【Leakproof and Easy to Clean】Extra wide mouth and 450ml capacity. Seamless welding food jar can hold any food or soup without leakiness. The size of it fits for children's lunch and adults' meals.
  • ✔【Great After Sale Service】WayEee provides a after sale service on food flask for quality issues. Any problems you would like to solve or any questions you want to ask, please don't hesitate to contact us.
8.9
Excellent
Save 11%
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10
8.8
Excellent
Save 20%
Thermos - Blue Kids Food Flask (290ml) - BPA Free, Stainless Steel, Spill Proof, Thermal Flask for Lunch Box, 5 Hours Hot & 7 Hours Cold
Thermos
Thermos - Blue Kids Food Flask (290ml) - BPA Free, Stainless Steel, Spill Proof, Thermal Flask for Lunch Box, 5 Hours Hot & 7 Hours Cold
20% OffFree Shipping
Why We Love It
  • Long-lasting stainless steel design.
  • Convenient wide mouth opening.
  • Superior temperature retention technology.
Main Highlights
  • Keeps Food Just Right: Double-wall vacuum insulation keeps your child’s lunch hot for up to 5 hours or cold for 7 hours, so their meal stays fresh and at the perfect temperature all day long.
  • Built to Last: Made with tough, high-quality stainless steel inside and out, this flask can handle drops, spills, and everyday use. Plus, it stays cool to the touch even with hot food inside, and won’t sweat when filled with cold treats.
  • Hassle-Free Cleanup: The wide mouth makes it easy to fill, eat from, and clean, saving you time in the morning and making after-school cleanup a breeze.
  • Trusted Thermos Quality: Crafted with the legendary Thermos performance you can count on, this flask is lunchtime ready and backed by a 5-year guarantee, ensuring long-lasting reliability for years of school lunches.
8.8
Excellent
Save 20%
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