HomeRoast Digest


Topic: Boiling and cooling water Was: Colombia Antioquia (24 lines)
1) From: Mike Koenig
I'll agree that most of the dissolved gases become insoluble as you
approach boiling, but NOTHING in chemistry happens instantaneously.
I'm moving my office right now, so I don't have any reference books
available,  but I'd bet money that if you heat water from room temp,
to 200F, you will still have some amount of dissolved gases if you
brew with it immediately.  Hold it at 200F for a while, and these
gases will be driven off,  so I would argue that there IS a difference
between freshly heated water, and water that's been kept hot for a
long time.
Toss a spoonful of salt in a glass of water.  Does it dissolve right
away?  No it doesn't.. Gases coming out of solution is the same
process in reverse.
--mike
On Tue, Mar 25, 2008 at 11:39 AM, Rich  wrote:
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