Our fantastic customers are the most important part of our business and we guarantee we'll be there for you during your journey with us. Material: 8/8 Pro-Grade Stainless Steel, Capacity: 591 ml, Hours cold: Unspecified, Hours hot: Unspecified. What is the best soup flask? The SHO promises to keep your food hot for 10 hours or cool for 20 and it lived up to its promise for us. For hot food, it was noticeably cooler after 10 hours but still hot enough to eat without reheating. For any stains or bad odours, simply add a couple of teaspoons of bicarbonate of soda to the flask and then top up with hot water. Thermos is the most well-known brand for making insulated flasks so they’ve got it down to a fine art.

SHO Food Flask - Vacuum Insulated, Double Walled Stainless SHO Food Flask - Vacuum Insulated, Double Walled Stainless

For drinks flasks, you’ll need an elongated brush that can reach the bottom, whereas for food flasks, which are shorter and have wider openings, it’s generally possible to wash it as you would a mug. There’s no inner lid or cutlery with this one, nor does it promise to keep your food warm or cold for a specific amount of time. Because of this, we decided to go with a minimum keep-warm period of 6 hours. This food flask from VonShef is an uncomplicated and highly functional food flask. Featuring a double-walled insulation system, which combines layers of stainless-steel with a middle layer of vacuum insulation to keep food warm, or cold, for a good amount of time. The lid is also wide mouthed so as to allow you to fit almost any kind of food in with ease. Next, think about how long you would need to keep your food warm for. Look for ones that will retain heat for at least six hours.

For kids, there are smaller capacity ones of around 300ml. These don’t weigh as much, will fit into lunch boxes and, as kids generally eat less, there’s nothing going to waste. The ones that will keep your food warm for longer will generally cost more, but they can also be more versatile. The bright and bold colours and whimsical designs of IGZOM’s food flask make it a great choice for the young and young at heart alike. With 9 varieties including the plain pink option pictured, some of which are cutesy animal designs, it’s sure to bring a smile to your face come lunchtime. Made from 2 layers of food-grade stainless-steel separated by a layer of vacuum insulation, it will keep food warm for up to 6 hours and cold for up to 12 hours.

SHO Best Sellers - SHO

The amount of food you can get into your flask should be one of the main considerations you make when looking for the right food flask. Nobody knows your appetite and eating habits better than you do, so take a close look at the volumes of the flasks you’re considering and weigh that up against how much you’d be looking to carry. After all, it defeats the point somewhat if you can only fit half a lunch portion in what you’ve bought, or on the other end of the spectrum, buy one that’s too big and realise you’ve wasted money on flask volume you just won’t fill. Also bear in mind how many people you’re feeding – one large flask might feed two, if you’re going on a trip somewhere and are trying to economise on how much to take with you. Lid Of the food flasks we tested, we think the Thermos Stainless King food flask would be best for soups. Of course, one of the main reasons to buy a flask is to keep hot food hot. As such, heat retention is another of the most important factors to consider before buying. This heat retention time can vary hugely between around 4 hours, up to 12 hours and potentially even longer than that. This means that you have to factor in how, where and when you intend to use your flask. For single portions, a few hours is probably fine, but on longer expeditions with multiple meals, you’re naturally going to need one that’ll hold onto that heat for longer.Our Lifetime Guarantee is ultimately our promise that if you have a problem with a product we will find a solution for you. We also had to wrap the spoon to make sure it stayed clean before use as it’s on the outside of the flask rather than the inside. We don’t think it’s a huge problem but obviously it depends on how long you’d need to keep your food warm. For a camping trip where you might not eat for hours, it’s not ideal but for the office, the keep-warm time should be sufficient. However, the silky smooth stainless steel finish made tightening and loosening the lid much harder. On the plus side, this made cleaning it super easy - handy as it can’t go in the dishwasher. Food flasks vary in price depending on how big they are and how long they will keep your food warm.