It is not uncommon in the summer to keep drinks cold and food frozen for long distance transportation. In the heat, the first ones quickly heat up, and the second ones defrost, and often completely deteriorate. But the problem can be solved quite easily, and a diaper will help with this.
Someone will remind you of such a useful thing as a thermo mug. Indeed, it works. Double walls made of stainless steel reliably keep drinks in their original form (at a certain temperature) even during the day. Only the volume of this container is small - only 470 milliliters. Therefore, we are looking for other options.
For this unusual method, you will need regular diapers and water. Diapers can be very small, larger, and if taken for adults, then very large. The most inexpensive version of the product will do.
You need to pour water into the diaper, just not too much, and place this product in the freezer. After two or three hours there will be ice inside it. It remains to wrap a drink or frozen food in such a diaper and you can hit the road. Even if defrosted, the water will not run out, but will remain inside the diaper. Convenient, simple and practical.
Continuing the topic read, what 5 foods you need to eat in the heat in order to easier cope with overheating of the body.