Hello friends. Now let's look at how to make a simple cold accumulator for any bag or even a bucket.
Imagine the heat outside, you take drinks, ice cream or sausages for frying in the store. You go to the place of rest and upon arrival the water is warm, the ice cream has melted, and the sausage has deteriorated... So, a simple craft will help us avoid this.
I made it for my thermal bag, if you don't have one, then any insulated bag, or a bucket with a towel inside, will do to keep the cold. For the craft, I need liter soda bottles.
They don't fit flat in my bag, so I decided to shorten them. I pour water into the bottle up to the desired mark.
ANDI heat the neck with a construction hairdryer, you can use a gas burner. It starts to shrink from temperature and decrease. At the exit, we get a smaller bottle with the same volume.
The containers are ready. You can not get confused, but take small bottles. But then keep in mind, less solution volume, less cold.
Preparing a cold storage solution
To make it, we take ordinary salt. We put it in a saucepan. Based on 300 grams per liter. Add water and dissolve it. If suddenly all the salt has dissolved. We add more. Until the pellet begins to remain at the bottom.
After that we pour the strong solution into your bottles.
We put them in the freezer for at least 12 hours.
By the way, thermal bags are not so expensive, they can be purchased at the nearest stores. Yandex helps a lot in this search:
After this period, you can already use them. The temperature of this solution reaches low values. And it does not freeze.
It remains only to wrap the cold accumulators with a thin towel to collect condensation. And you can lay food. The batteries are best kept upright. So that the heat descends from top to bottom.
Tests have shown that a strong salt solution with an approximate volume of 1.5 liters keeps the cold for at least 12 hours. With the bag closed. Cold drinks, fresh sausages!
Note to fishermen. If you fish in the heat, then the catch can be kept fresher if you pour it a little with the same salt solution. A new house is not difficult to make!