Treated water, just for drinking or everything? August 02, 2011 07:44PM | Registered: 15 years ago Posts: 190 |
August 02, 2011 07:50PM | Registered: 13 years ago Posts: 1,351 |
August 02, 2011 08:17PM | Registered: 14 years ago Posts: 7,421 |
Re: Treated water, just for drinking or everything? August 02, 2011 08:30PM | Registered: 15 years ago Posts: 190 |
August 02, 2011 08:41PM | Registered: 14 years ago Posts: 7,421 |
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traildad
What about for washing your cooking pot?Quote
chick-on
No need to filter the water if you are boiling it before putting any foodstuff in it.
Done it a zillion times... never have gotten sick out there.
August 02, 2011 09:00PM | Moderator Registered: 15 years ago Posts: 1,876 |
August 02, 2011 09:05PM | Registered: 14 years ago Posts: 7,421 |
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szalkowski
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chick-on
Step 2) use utensil that the big guy gave you to preclean pot and bowl (your finger)
An approx. 2" x 4" piece of Scotch-Brite scour pad works better on the pots... esp. if you've managed to scorch some food (e.g., pasta) while cooking.
August 02, 2011 09:12PM | Moderator Registered: 15 years ago Posts: 1,876 |
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chick-on
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szalkowski
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chick-on
Step 2) use utensil that the big guy gave you to preclean pot and bowl (your finger)
An approx. 2" x 4" piece of Scotch-Brite scour pad works better on the pots... esp. if you've managed to scorch some food (e.g., pasta) while cooking.
If you're GONNA use a scour pad... a 50x100mm piece is far superior.
(or use that item on the end of your utensil (you're finger nail))
(or don't fall asleep while cooking)
August 02, 2011 09:14PM | Registered: 14 years ago Posts: 7,421 |
August 02, 2011 08:30PM | Registered: 13 years ago Posts: 1,351 |
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CDC
At altitudes greater than 6,562 feet (>2,000 m), boil water for 3 minutes or use chemical disinfection after water has been boiled for 1 minute.
August 03, 2011 06:03AM | Moderator Registered: 15 years ago Posts: 1,942 |
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ttilley
Here's the relevant portion of the CDC's recommendation, assuming we're talking about mountain locations:Quote
CDC
At altitudes greater than 6,562 feet (>2,000 m), boil water for 3 minutes or use chemical disinfection after water has been boiled for 1 minute.
I've consumed untreated water flowing from rocks in the Sierra several times w/o incident. I've also become sick from spring water in the East Bay Hills (prolly because of all the cattle...grrr...). If you're not going to treat it then the recommendations probably don't matter a whole lot. If you are, then might as well follow them.
August 07, 2011 02:14PM | Registered: 15 years ago Posts: 1,374 |
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Frank Furter
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ttilley
Here's the relevant portion of the CDC's recommendation, assuming we're talking about mountain locations:Quote
CDC
At altitudes greater than 6,562 feet (>2,000 m), boil water for 3 minutes or use chemical disinfection after water has been boiled for 1 minute.
I've consumed untreated water flowing from rocks in the Sierra several times w/o incident. I've also become sick from spring water in the East Bay Hills (prolly because of all the cattle...grrr...). If you're not going to treat it then the recommendations probably don't matter a whole lot. If you are, then might as well follow them.
The CDC article make the important point that heat improves the effectiveness of chemical agents and the role of particulate material. A combination of warming and chemical action is very reasonable to conserve fuel-- 3 minutes is a LONG time before adding food. The addition of solid material would invalidate the 3 minute guide as I understand the recommendations.
August 07, 2011 02:33PM | Registered: 15 years ago Posts: 4,173 |
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y_p_w
You can cut back on the heat once it reaches a full boil. I know they say it should be a "vigorous boil", but I thought that once it reaches boiling temps (phase change from liquid to gas), it doesn't get any hotter. Or at least that's how I remember it from high school chemistry. You can really cut back on the amount of fuel used once it reaches a full boil.
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y_p_w
Even then, I've heard some recommendations that letting it boil too long is overkill. I remember preparing hot water for tea using stream water right in a steel camp cup. Once it was bubbling, I turned off the heat. I didn't get sick.
August 07, 2011 03:17PM | Registered: 15 years ago Posts: 1,374 |
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plawrence
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y_p_w
You can cut back on the heat once it reaches a full boil. I know they say it should be a "vigorous boil", but I thought that once it reaches boiling temps (phase change from liquid to gas), it doesn't get any hotter. Or at least that's how I remember it from high school chemistry. You can really cut back on the amount of fuel used once it reaches a full boil.
I don't understand what the difference is between a "full boil" and a "vigorous boil"? For me, it's one and the same.
When any instruction calls for the water to be brought up to a full boil, it means that all the water should be as close to 212º F as possible. When water just starts to boil, only some of the water in the container has reached 212º. It usually takes bit longer (depending on how hot the heat source is) for the rest of the water to approach 212º F.
Re: Treated water, just for drinking or everything? August 02, 2011 08:24PM | Registered: 14 years ago Posts: 1,736 |
August 02, 2011 08:34PM | Registered: 14 years ago Posts: 185 |
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Re: Treated water, just for drinking or everything? August 07, 2011 02:49PM | Registered: 15 years ago Posts: 923 |
August 07, 2011 02:19PM | Registered: 15 years ago Posts: 1,374 |
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traildad
I tend to use filtered water for everything. Drinking, cooking and dishes. It can be a bit of a hassle, especially if the water source is not really close. I prefer to err on the side of caution as I don't want to be sick on the trail. However, I can't help but wonder if it matters for everything. Cooking will boil the water, and my cooking pot gets heated the next time I use it. What do you do for your water?
Re: Treated water, just for drinking or everything? August 07, 2011 02:35PM | Registered: 15 years ago Posts: 384 |