Boil water in a plastic bottle over a fire. Boiling water in a plastic bottle, how to boil water in extreme and emergency conditions. Boiling water in a plastic bottle

This post will be useful to everyone who goes hiking, in the forest, in the mountains, on picnics, etc.
In it, I will talk about the way to get in field conditions boiling water for tea, coffee or porridge fast food if you don’t have a kettle, a kettle, a saucepan, or even a mug in which you could heat water with you.
All we need for this is fire and water.
The method is very simple and convenient, we were taught it as part of a survival course during a special training Combat Camera.

2. Going on a short hike, we usually do not take a kettle, pot or pot with us, not planning to boil water for tea. But sometimes it happens that either the hike is delayed, or the weather deteriorates sharply, or someone feels unwell, or the situation simply turns in such a way that it is necessary to stop for a halt. No one ever refused tea at a halt, and sometimes it is extremely necessary to keep warm. What to do if you need boiling water, but there is nothing to heat the water?
In fact, there is something to heat it up. After all, we brought her in something with us, didn't we? As a rule, we take water with us in plastic bottles - they are both light and practical.
Therefore, we will boil water .. in plastic bottle.

3. We kindle a fire, completely fill the bottle of the required volume with water and carefully place it in the middle of the fire.
Moreover, in order to boil 0.5 liters of water, a very small fire is needed, only a dozen small dry twigs will be enough. If you need to boil more water, it is better to do this in several passes than to use a larger bottle, because. the water in it will boil much longer and the bottle can be severely deformed

4. That's it, leave the water bottle on fire and wait literally two or three minutes.
Don't worry, the bottle won't melt!!!
Why?
Let's turn to the school course in physics. What is the boiling point of water? That's right - 100 degrees Celsius and not a degree more. Then it starts to evaporate. The melting temperature of PET plastic is 260 degrees, i.e. significantly higher. Being on fire with water inside, the plastic simply cannot heat up to the melting point. Water, in fact, cools it down to 100 degrees.
Therefore, while there is water in the bottle, it will not melt and will perfectly serve as a kettle for you.

5. Before the water boils, you need to remove the cork from the bottle (in principle, you can not put it on from the very beginning). If you leave it, then unscrewing it, you can seriously burn yourself, because. boiling water will spill out from behind high blood pressure in the bottle

6. By the way, you can disinfect water in the same way if you completely ran out of drinking water during a hike and you had to draw it from an open source, the purity of which you doubt (it can even be a puddle on a forest path, only you need to draw water from it carefully so as not to raise silt and dirt from the bottom).
Such water must be kept on fire in a boiling state for 5 minutes.

Header photo (c) sergeydolya , because I filmed the entire process with my camera.

How to get a bottle of boiling water out of the fire?

Well, don't get too carried away, after all, it's plastic ..

UPD about the harm of plastic bottles.
The material from which plastic containers for water are made: PET (polyethylene terephthalate or lavsan) - a polymer resistant to heat (melting point - 260) and to chemical active substances. Only strong alkalis (caustic soda or KOH) act on it. So critical negative impact no water.

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> survival in civilian life > ways to boil water in field conditions

How to boil water while camping

It’s good if you have a metal container for boiling water, but if you don’t have it, what then? And then we remember how at school, in physics lessons, they wrapped a nail with thread and burned it on a spirit lamp, but the thread did not burn out. Why? Yes, because all the energy from the fire was transferred to the nail, and until the temperature of the nail equals the ignition temperature of the fabric, the thread will be intact.

The same is true here, the container will not burn through until the ignition temperature equals the boiling point of water. You can even boil an egg in a paper bag). Therefore, water can be boiled in almost everything that has an ignition temperature of more than 100 gr. I.e plastic pvc bottles, plastic bags, paper bags, paper bags, etc. Clarification - all this container really ignites very easily, so you need to boil water in it on coals, pour water into the container and hang it over the coals, where the temperature is about 100 degrees, the main thing is that there is no strong open fire, or over the fire, but so, so that it is on the side and does not fall directly on the bottle or bag (for example, from the leeward side, when the wind blows the fire a little to the side) The water will slowly but boil. Caution - PVC packaging is chemically neutral only when cold, when PVC is heated - release is possible chemical substances into the water, that is constant use water boiled in this way, poisoning is possible.
Also in emergency conditions you can boil water without containers, a brewing container can be replaced by a recess in a rock, a stone. In the presence of a plastic bag or a piece of film, you can boil water like this. Dig in the ground right size hole and put a bag into it, or a piece of polyethylene, fill the hole halfway with water. The hole should be smaller than the bag, which will take the load off the film. The bottom of such a polyethylene pan should be lined with pebbles so that a stone heated on a fire does not burn through the film when immersed.
Stones heated on a fire, lowered into a container, give off their heat to water, gradually heating it to a boil. You can pull stones out of the fire using improvised wooden tongs made from two curved sticks or a wire loop. Wrap the stones tightly with wire and use them alternately while maintaining boiling water in our film saucepan. Do not worry, polyethylene will not melt from boiling water. The ignition temperature of PVC and polyethylene is almost 200 gr.

An impromptu saucepan can be made from birch bark by twisting the tube with a cone or from a large piece of birch bark, making a rectangular saucepan with fixed edges (as shown in the photo) Either this big piece put birch bark in a hole, as mentioned above in the example with a bag, pour water and boil with hot stones. Boiled water in this way will be to everything and environmentally friendly.

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Boiling water in a plastic bottle is not something beyond. Everything is very simple. And although such a need may not arise often, you need to know that in which case plastic is able to cope with boiling water no worse than a metal pot or pan.

Let's imagine the following as an example. In an extreme or emergency situation, for example, if a person is lost in the forest, he has run out of drinking water, and for drinking typed in an unfamiliar source is doubtful. Since it was planned to go out into the forest for a short time, the bowler hat was not taken, only a liter plastic bottle of mineral water was taken with us.

In addition to the bottle, all that is needed to boil water is a knife, a cord or rope about a meter, a lighter, or two or three branches 1.5-2 cm thick. Laces tied together can be used as a cord. If the shoes are without laces, then a lanyard from your favorite folding knife, which opens into more than a meter long cord.

Digging a small hole. In this case, it turned out to be about 20x20x5 cm in size. We install branches above it. We tie the cord to the bottle and one of the branches. We adjust the length of the cord so that from the bottom of the bottle to the surface of the firewood it is about 10-12 cm.

We kindle a fire and hang a plastic bottle over it. We maintain a stable fire in such a way that the flames of the fire touch the bottom of the bottle. Don't forget to remove the cap. If the plastic bottle is not full, then it will inevitably deform and decrease in size during the boiling process until the water occupies its entire volume.

Boiling water almost ends after the appearance a large number bubbles rising from the bottom of a plastic bottle. Then we move it a little away from the fire, at the same time we throw firewood and increase the intensity of burning.

After a while, when the water finally boils, we remove the bottle from the fire. A plastic bottle after boiling water in it remains intact and can be used further. With certain skills, the entire process of boiling 0.5 liters of water takes from 40 minutes to 1 hour.

When the boiling of water in a plastic bottle is finished, we disassemble the entire structure, and again turn the cord into a lanyard for a knife. An adjustable loop at the end of the lanyard adds convenience when using the knife. For example, when you need to hang it next to you on a twig or knot. A tightened loop that passes through the holes in the knife fixes and holds the lanyard in the upper suspended position so that it does not climb under the arm and does not interfere.

Unfortunately, we do not always find ourselves fully armed in nature. In some cases, you may not have an elementary with you. And drinking water from streams without disinfecting it is not recommended.

There can be many reasons why you could be without a bowler hat. But do not despair, with a certain ingenuity, you can do without this useful device. The main thing is that there should be fire. Below we will consider the most common ways to heat water in the field.

How to boil water on a fire using a plastic bottle

Do not throw away this utensil immediately after use. She can serve you at least once. No matter how strange it may seem, it is quite possible to boil water on a fire without a pot in the field using an ordinary mineral water bottle. In the same way, you can get it on a hike.

To do this, you need to pour it entirely. Please note that the bottle must be filled entirely, along the edge of the neck. Then it is carefully placed on the coals. The fire by this moment should not have an open flame. It is desirable to put the bottle in the middle of the coals. This will speed up the heating. Keep an eye on the process, as soon as the water is warm enough, quickly remove it from the heat. Oddly enough, the bottle practically does not melt. This allows you to use it in this way several times.

You can not wait until coals form in the fire, you can also heat water in a plastic bottle on an open fire. You just have to tinker a little with the preparation of the process. In this case, one third of the water is poured into the bottle. Tie it by the neck to the end of the stick. The other end of this stick is stuck into the ground. It is necessary to make sure that the fire almost reaches the bottle. As soon as the water boils, remove the bottle from the fire.

Both of these methods are based on the difference between the melting point of plastic and the boiling point of water:
Water boils at 100°C;
Plastic melts at 200°C.

Thus, the water cools the bottle, preventing it from melting. This method is good if you happen to be without a bowler hat by accident. For example, lost it. But you had a supply of some liquid with you.

Boiling water with stones

It is likely that this is the oldest and easiest way to get hot water without a pot. To do this, you will need a few stones and any container. Anything can be used to heat water. First, consider the options for preparing the container.

To heat water in this way, you can use anything, up to dense plastic bag. You can also make some analogue of a bowler hat. A small hole is dug in the ground. It should be laid out from the inside with a material that does not allow water to pass through. A polyethylene raincoat, a piece of tarp, and so on will do. Water is poured into the resulting container.

Then they select suitable stones. Various round stones like river pebbles are ideal. The size is selected depending on the volume of the resulting "dishes". Stones should be washed and heated on fire. With the help of two sticks they are placed in water. This is done in sequence. One stone heats the water, the other is in the fire.

Usually, a couple of stones are enough to bring a small volume of liquid to a boil. Thus, you can even cook dinner. If polyethylene was used for the base of a homemade pot, then do not allow the hot stone to come into contact with it.

Wooden utensils

Most people think of spoons when they mention wooden dishes. Well, in a pinch, dugout bowls. It is hardly possible to do this in the field. But to organize a bowler hat made of birch bark is quite within the power of everyone. With the right approach, it is quite possible to boil water in it and even.

For the manufacture you will need birch bark. Best young, but it does not matter. And four short sticks. The birch bark is cut in the shape of a rectangle or square. Next, the corners are bent and fastened with slightly split sticks. The result is a rectangular bowl.

Such a pot is not recommended to be placed on an open fire. This may damage it. Therefore, wait for the formation of coals in the fire and only then put the dishes there. You can also dig a hole next to a burning fire and pour coals into it. A pot is placed on top.