Smash Stainless Steel Push Button Food Flask, Sage

Product Information

It's imperative to strictly adhere to the instructions for use, such as warming the interior with hot water for five to 10 minutes before adding any food that will be eaten later. Our home tester found that when you did, this kept hot food warm for five hours, even if it was opened every hour to test the temperature. It also kept cold beverages cool for seven hours, with ice cubes still visible at the end of the test. The lid can be a major functional part of any kind of flask. Just like drinks flask which utilise the lid as a miniature cup/mug, so do food flasks have convertible lids. It might be a pertinent consideration, especially if you’re getting a food flask for camping or hiking trips, to have a flask with a lid that doubles up as a bowl. Some also come with foldable spoons, meaning cutlery becomes one less thing that you have to bring. Materials Insulated cup: Good flasks also pay attention to the insulation of the detachable cup, if they have one. This is so your drink stays warm while you’re drinking it. Meanwhile, the outside stays cool, so you don’t risk burnt hands.

The size of a thermos largely depends on what you want to use it for. Most thermoses for adults tend to be around 16 ounces, and ones for children are a little smaller. The food will cool down faster if there is excess air in the thermos, so if you want your food to stay hot for several hours, you'll want to use the best size thermos for the amount of food you're putting in it. If you just want the option for a small soup bowl at lunch, you can go with 10 ounces or smaller. If you want to carry a hearty meal in your flask, 16 ounces is likely the better fit. Thermos King states this can keep liquids hot for nine hours and cold for up to 14 hours, so we put that claim to the test in a home kitchen. Our reviewer filled all 16 ounces with freshly made mac and cheese and opened the thermos every hour to see if the temperature remained consistent. It wasn't until the ninth hour that the temperature dipped. Additionally, it excelled at keeping water ice-cold, with our tester still observing ice cubes after 14 hours in the thermos. 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! 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.

Best for big meals – SHO’s Ultimate Food Flask is not the biggest flask out there, but it is bigger than most. 2 sizes are available for the Ultimate, both of which are bigger than comparable flasks. The smaller is 600ml, which beats out other similarly sized flasks which are usually around 500ml, and the 800ml compares with others usually around 700ml. So unquestionably, if you’ve got a big appetite (or are carrying food for two) then the Ultimate should be your flask of choice. An honourable mention does go out to Pioneer’s 1000ml food flask, however.

High-quality thermal flasks can keep food and beverages warm for as long as a full 24 hours. More economical brands will typically retain the original temperature of contents for four to six hours.

Our pick of the best Thermos and vacuum flasks will keep your brew hot and your lunch cool all day

Some flasks are also designed with the intention of maintaining a low temperature for cold food. While not fully refrigerating them, flasks designed for this purpose will usually keep things cold longer than they keep things hot. But, some flasks are not meant for this, so bear that in mind. 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. Even inexpensive models tend to be vacuum-seal stainless steel. However, the vacuum-seal method can be used with other materials like glass and plastic. Because they are not as durable as stainless steel, they are not recommended.