1. Aluminium Foil + Towel
A thermos works to keep food hot by insulating it and stopping the heat escaping.
Aluminium foil and some kind of towel or tea towel is going to achieve a similar resultant role for us. Aluminium foil is great at insulating estrus radiation and reflecting it back onto the food and stopping it from escaping. The aluminum foil, or possibly you ‘ll use a fictile tupperware container will besides stop heat escaping in the imprint of vaporization. The towel or tea towel acts as far layer of insulating material to stop heating system transferring away from your food to the outside air. It ‘ll keep that lead trapped inside your container. so if you want to keep food warm for lunch without a thermos then just wrap it in aluminum foil and then wrap your food in a towel or tea towel and it should stay ardent for hours .
2. Hot Water Bottle or Heat Pack
When you ‘re trying to keep food cold what do you do ? You add a source of cold normally in the form of an ice gang. But about no one thinks of actually adding a heat generator in order to try and keep food hot. Water is dense and can carry a lot of estrus energy. If you ‘ve always put boiling water in a hot water bottle and woken up to find it ‘s still strong in the good morning you ‘ll have seen this in action. so filling up a bottle of body of water with hot or boiling water and then putting that inside the towel or even inside the aluminum foil with you food will help to transfer some of that heat to your food keeping it warm. With formative bottles you obviously have to be careful of them melting with boiling water, which is why single-walled stainless steel sword bottles can be a great choice. You do n’t want to use the insulate bottles as the heat wo n’t transfer to your food. Below is a connect to a cheap 4 pack of unmarried walled stainless steel steel bottles in multiple sizes. One of them will surely suit your needs. See the latest price of Mounchain 4-pack Stainless Steel bottles at Amazon You can besides use a heat pack made from pale yellow or rice and heat them up and put them with your food. however, these do n’t stay hot quite vitamin a long as urine which is why I normally recommend using hot body of water bottles. A bonus of hot urine bottles is frequently you ‘ll have access to a hot tap or possibly even boiling water so you can refill it to keep things hot for longer if you need to .
3. Cheap Insulated Bags
You can buy brassy reclaimable thermal bags that help keep your food insulated. They use a like premise to the aluminum foil + towel where you are reflecting the estrus back with the aluminum and then trapping the hotness from escaping with the towel. however these come in handy sealable bags where you can just throw your hot food in them and seal them up and you ‘re good to go. To make them last longer wrap the with a towel. When done you can wash them out and reuse them again or they are so cheap you may wish to discard them. See the latest price of a 5-pack or insulated bags at Amazon
4. Make Your Glass Tupperware Hot
This is something you would do in junction with your alfoil + towel. Glass tupperware can actually absorb and retain a fair sum of heat. Putting your blistering food into a tupperware container that is cold will immediately strip a set of the heat away.
alternatively, pre-heat your tupperware container with boil water and leave for a few minutes so the glass gets very hot. then empty out the boiling water, put your hot food in the tupperware container and cursorily cover it with alfoil and wrap in a towel to retain as much estrus as possible. The hot glass will add heat to your food and help oneself to keep it warmer for longer .
5. Instant Hand Warmers
For a simple heat informant when you ‘re on the blend and do n’t have access to hot water system you can use instant hand warmers. These are n’t going to warm your food up for you but give them a shingle and they ‘ll provide a little bite of excess heat in decree to keep your food warm for longer. The good thing about these is that when it starts to run out of hotness you can grab a new one, give it a judder and then replace it with a fresh hot hand ardent. Get a pack of 10 instant hand warmers for cheap at Amazon
6. Wrap It In A Sweater
Sweaters keep you warm because they are able to effectively trap your body heat. But they besides work on hot food excessively and will likely work better than a towel. Put your food in a container, wrap that in alfoil if you can and then wrap your food container in one of your sweaters. Fleece sweaters and puffer jackets work bang-up as do large winter coats. When you ‘ve eaten your food you can then wear your sweater on the way home if it ‘s a cold day .
7. Keep Hot Water and Make It On Site
You may not have a thermos food flask but you might have an isolate water bottle like a Hydro Flask or other stigmatize. so many people have them these days and they are highly park. Pre-heat the inside of your water bottle with boiling water and leave to sit for 2-5 minutes before discarding the water system. This will warm up the metallic inside to insure it does n’t strip away any heat. now add fresh boil body of water, filling your bottle to the top, and seal it off cursorily. This urine will stay extremely hot for a few hours and can be used at lunchtime to make something like a cup of soup or cup of noodles. My personal front-runner brand is Hydro Flask but there are a distribute of different brands and options out there : See the latest price of Hydro Flask bottles at HydroFlask.com
( or compare prices at Amazon )
Keeping Food Warm For Longer Periods Of Time Can Be Unsafe
You do need to be careful when keeping food strong for an stretch period of time. Temperatures between 40°F-140°F ( 4.4°C-60°C ) are considered by the USDA to be a “ danger zone ” where bacteria can grow quite quickly leading to potential food poisoning. You ‘ll want to keep your food above 140ºF therefore bacteria ca n’t grow differently if it falls in that danger zone then you could be eating food that is going to make you disgusted. Rice is an particularly bad food to keep affectionate and I covered this in contingent in my article on can you put rice in a thermos. always be safe when keeping food warm and follow your local health guidelines. You can besides click here to learn how to keep food warm in a lunch box for more tips and tricks.
Read more: Microwaved Corn on the Cob