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Larry

wrote in
:

Larry wrote:
Gogarty wrote in news:20090421-210944.92.0
@Gogarty.news.bway.net:

You make a very good point. Are there not emergency stills that work
on sunlight?

Yes. Only trouble is they are evaporators, not stills. Biology
grows right up to around 180F so these solar evaps are easily
contaminated, a source of nasty bacteria because they are just right
inside in temperature.

If you don't see it boil, it just isn't safe.

Well, for most common pathogens, you are pretty much correct.
However, there are many spore forming thermophiles whose spores will
just laugh at you if you try to kill them with boiling water. Throw
in 10 spores of G. stearothermophilus in your boiling water. They'll
still be happy to grow up after boiling for 10 hours.

And you can throw in 10 B. subtilis/atrophaeus spores in your dry jar
and put in the oven at 250°F. They'll still be viable 600 hours later.
You'd need 10 minutes at 320°F. Dry heat sterilization is much less
effective than moist heat, for most all types of bugs, so jack up the
temp when you're trying to sterilize things in an oven.

Keith Hughes

My offer still stands to put sterile jars of your RO water and my
distiller water on the dock for the summer then we'll both drink what's
in it the last day of August.....

I'm sure DoD has some superbugs in their illegal arsenal of biological
warfare agents no distiller can kill.....But, when it comes to purifying
hose water from the sewage the city delivers as drinking
water....Distillers work much better than anything available, including
RO.

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Larry
You can tell there's very intelligent life in the Universe
because none of them have ever tried to contact us.....