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2. Hand warmer - Wikipedia

   en.wikipedia.org/wiki/Hand_warmer

   Battery operated hand warmers use electrically resistive heating devices to convert electrical energy in the battery into heat. Typically hand warmers can heat for up to six hours, with heat outputs from 40-48C. Rechargeable electronic hand warmers can be charged from a mains power supply or from a 5V USB power supply, with many recharge cycles ...

3. Lunchbox - Wikipedia

   en.wikipedia.org/wiki/Lunchbox

   Lunch box and vacuum bottle owned by Harry S. Truman A collection of lunch boxes for school students Insulated thermal bag with ice packs. A lunch box [1] [2] [3] (or lunchbox) [4] [5] [6] is a hand-held container used to transport food, usually to work or to school. It is commonly made of metal or plastic, is reasonably airtight and often has ...

4. Food warmer - Wikipedia

   en.wikipedia.org/wiki/Food_warmer

   When used domestically, such as with fondue, a food warmer may simply be a small vessel containing food upon a trivet which contains a heat source such as a flame or electric element. Some food cookers can then, in essence, become food warmers as they use a reduced heat to maintain a serving temperature. [1] Electric rice cookers do this ...

5. Freeze toys for a fun and easy way to keep kids entertained ...

   www.aol.com/freeze-toys-fun-easy-way-191144945.html

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6. Thermal bag - Wikipedia

   en.wikipedia.org/wiki/Thermal_bag

   Thermally insulated bag with ice packs Example of a thermal bag Example of a thermal bag. A thermal bag is a type of thermally insulated shipping container in the form of a bag which can be carried, usually made of thermally insulating materials and sometimes a refrigerant gel.

7. Self-heating food packaging - Wikipedia

   en.wikipedia.org/wiki/Self-heating_food_packaging

   A Unitized Group Ration – Express self-heating field ration being heated in its box. Self-heating food packaging is active packaging with the ability to heat food contents without external heat sources or power, usually using an exothermic chemical reaction. Packets can also be self-cooling. These packages are useful for military operations ...