Spring is approaching, which means that the time for hiking, long walks and morning runs is approaching. In any of these cases, it may be necessary to keep certain foods fresh and cold. To do this, we suggest that you familiarize yourself with our material, which will review the video on the manufacture of refrigeration bags.
First of all, we suggest devoting a few minutes to watching the author’s video material
So we need:
- ammonium nitrate;
- plastic bags zip-lock;
- plastic bag;
- plastic bottle;
- water.
According to the author, unlike potassium nitrate, ammonium nitrate is not prohibited and is sold in any agricultural store. Let's get started.
We take a plastic bag and draw water into it. This must be done with extreme caution so that the bag does not get wet outside. It is more convenient to do this with a bottle, for this we pre-fill the bottle with water. Pour water so that the size of the bag of water is less than a fist.
Tie a bag well so that the water does not spill out. Put the package aside.
We take a zip-lock package, in which you need to dial saltpeter. According to the author of the idea, the proportions are unimportant here, so everything can be done by eye.
Next, you need to place a bag of water in a bag of saltpeter. The zip-lock package needs to be closed. Our refrigeration bag is ready. It should be noted that before closing the zip-lock bag, all air must be removed from it.
Now a complete refrigeration package is ready. To put it into action you just need to hit a bag of water. Thus, it will burst, and the water will mix with saltpeter. A chemical reaction will begin, as a result of which the water will begin to freeze within a few seconds.
Many may wonder why use freezer bags if there is ordinary ice? To get ice, you must first freeze water, and for this you need about an hour and a half. In the case of freezer bags, this happens within 20-30 seconds. This package can also be used for first aid in case of emergency.
