|Brand||Product||Gear Capacity||Weight||Temperature after 4 hours||Price|
|Primus||Trailbreak Lunch Jug 550||550 ml||315 g||73 °C||299 kr|
|Stanley||Adventure Food Jar 0.53L||530 ml||520 g||76 °C||445 kr|
|Urberg||Food And Soup 480 ml||480 ml||322 g||75 °C||249 kr|
|Lunchbots||Thermal 473 ml||473 ml||408 g||70 °C||435 kr|
|Thermos||Stainless King||470 ml||365 g||75 °C||330 kr|
|Primus||C&H Food Thermos 1,5L||1500 ml||885 g||445 kr|
Which one to choose?
Honestly all thermos tested will do what they are supposed to! The temperature difference after 4 hours are not that big, only 6 °C between the best and the worst.
In our test Stanleys Adventure Fod Jar showed best test results. After 4 hours the water temperature had dropped from 100 °C to 76 °C with a surrounding temperature of 21 °C. The second place is shared between Thermos Stainless King and Urberg Food And Soup which both measured 75 °C after 4 hours. If temperature is the most important for you, pick one of these three food thermoses.
I you need more space, both Primus Trail Jug and Stanley Adventure Food Jar is slightly bigger. Perhaps 50 ml will be the difference between still being hungry or filling full.
If you think it’s more important with a bigger opening rather than preserving temperature you should take a look at Primus Trail Jug or LunchBots Thermal. LunchBots Thermal has the biggest opening but it is also the thermos which lost most temperature in our testing.
Since a couple of years back I have been using a 470 ml Thermos Stainless King and I don’t see any point changing to another one, the differences are not that big.
But if I would buy one today I would by Urbergs 480 ml Food And Soup. I think it will give me most bang for my bucks. For sure, it’s a copy of Thermos Stainless King. For what I know they are even manufactured in the same factory, but when comparing weight, ability to retain temperature and price with the others I think Urbergs Food And Soup is the best buy.
How the test was conducted?
All thermoses was filled with 100 °C boiling water. None of the thermoses was pre-heated, they all had a temperature of 21 °C, same temperature as the surrounding air. As soon as a thermos was filled with boiling water the lid was screwed on. All thermoses was standing up. After 4 hours the thermoses was opened and the temperature was measured in the same order as they where filled.
Both a Flir thermal camera and a digital kitchen thermometer was used to measure the water temperature.