Monday, November 29, 2010

How Long do you Boil Water for it to be safe

I frequently come upon bad advice about boiling water to make it safe to drink. Having enough safe drinking water is of utmost importance to any survivor. Proper information is very important and for that reason I am writing this is to set the record straight.

Boiling Water is the Best Method
As some of us know, boiling water is surest and most effective method of destroying microorganisms including disease causing bacteria, viruses, protozoan’s, and parasites.

Modern filtering devices and the chemical treatment of water come in a poor distant second to the ancient and almost foolproof method of boiling water to make it safe to drink. And importantly to the survivor, the boiling of water requires no special apparatus, training, or difficult to find chemicals. The means to boil water for safe drinking are usually close at hand:
•A source of heat
•A vessel to hold the water.
Boil Water Advisory Couldn’t be simpler. Or is it?
Commonly Stated Water Boiling Times
How Long Should Water be boiled
I am always hearing different amounts of time that water needs to be boiled to kill disease organisms. Recently I perused various publications put out by the government and trusted health organizations. What is glaringly obvious is they disagree on the length of time water should be boiled to make it safe to drink.
Common water boiling times that are stated include:

•“Boil water for 10 minutes” is a common statement
•“5-minutes of boiling” is also frequently heard
•“Boil the water for 20 minutes”. Would there be any left?
•“A rolling boil for 1 minute”. Is it enough?
•“When at high altitudes you need to boil water for twice as long”
Modern filtering devices and the chemical treatment of water come in a poor distant second to the ancient and almost foolproof method of boiling water to make it safe to drink. Which of the above statements are true? None. That’s right. Following any of the above advice for the boiling times of water is a big waste of fuel (and a waste of water if you are short on water cannot afford to lose any to evaporation).

Throughout the world whole forests have been cut down for firewood in order to boil drinking water. Hikers and mountaineers have used up precious fuel boiling water for inordinate amounts of time. In a survival situation you cannot afford to waste valuable resources and energy. With all the bad advice around, many thousands of trees and other fuels and a huge amount of effort have been wasted.

Correct Water Boiling Time
The correct amount of time to boil water is 0 minutes. Thats right, zero minutes.

"According to the Wilderness Medical Society, water temperatures above 160° F (70° C) kill all pathogens within 30 minutes and above 185° F (85° C) within a few minutes. So in the time it takes for the water to reach the boiling point (212° F or 100° C) from 160° F (70° C), all pathogens will be killed, even at high altitude."

What is not well known is that contaminated water can be pasteurized at temperatures well below boiling. The fact is, with a water temperature of 160 to 165 degrees F (74 C) it takes just half an hour for all disease causing organisms to be inactivated. At 185 degrees this is cut to just a few minutes. By the time water hits its boiling point of 212 F (100 C) - plus or minus depending upon pressure or altitude - the water is safe. Even at high altitudes the time it takes for the water to reach a rolling boil and then cool means you can safely drink it.

Lacking a thermometer to measure water temperature, you only need to get your water to a rolling boil. By that point you know the water is hot enough and that the disease organisms in your water were destroyed quite some time earlier. End of story, turn off the heat. Stop wasting fuel. Let the water cool down. Your water is safe to drink!

Friday, November 19, 2010

Do it Yourself Skills

Do-it-yourself skills are on their way out for many people, who prefer to have someone else do the dirty work. This has a direct effect on our collective ability to survive disasters.

A large part of survival is the ability to take charge of the situation and do what needs to be done in order to make it through another day. Often this is as simple as knowing how change the flat tire on a vehicle, or do some basic repairs to gear you are depending on. Like sharpening a survival knife, cleaning a rifle, or making a survival kit.

Every day we are losing touch with do it yourself skills, preferring instead to specialize completely into the one small thing from which we make a living. All that other stuff we can pay someone else to do.

When times are good your computer skills, or if you are flipping burgers your ability to churn ‘em out in numbers, may seem like the ticket to a good life. But should TSHTF you are going to find you cannot eat CD’s and your free fast food supply is nowhere to be found.

But it goes beyond that. Simply doing as many things as possible yourself – from plumbing to electrical to car repairs, gardening, and even fishing to putting some protein on the table – will give you a wide array of skill sets and problem solving skills no school can ever teach you.

When things go bad and a large scale survival situation occurs you are going to be in a much better position to survive if you are somewhat of a jack of all trades.

Emergency preparedness is usually pretty much a do it yourself skill if done right. Of course there are those who think all they have to do is pay for someone else to put together a survival kit or year’s supply of food, and they have got it made. Rest assured this way of thinking will serve them ill should they suddenly need this survival gear, possibly of dubious quality, without having the proper training and experience to use it.