How to boil water in a plastic bottle - survival water purification method.
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Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapor pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere. The boiling point of water is 100 °C or 212 °F but is lower with the decreased atmospheric pressure found at higher altitudes.
Purifying water by boiling is as a method of killing microbes that may be present in the water. The sensitivity of different micro-organisms to heat varies, but if water is held at 70 °C (158 °F) for ten minutes, many organisms are killed, but some are more resistant to heat and require one minute at the boiling point of water.
Boiling water in a plastic bottle is simple. First you need a fire. If you have your fire large enough, you can move on to your survival water purification. Then you need a plastic bottle. Fill it up two thirds and leave the cap off. Place the bottle in to the fire and wait until the water starts to boil. You see, boiling water over a campfire is pretty easy.
There are several methods for boiling water in a plastic bottle over fire, but knowing one is usually enough. And keep in mind, that it is wise to use plastic bottles for water boiling only in extreme situations, because it can be dangerous to your health. High temperature makes all sorts of chemicals leak out of the plastic which then dissolve into the water. If you want to stay on the safe side, use other methods for purifying water in the wild.
For other ways of how to boil water in the wild and other survival tricks, check out our channel.
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