The key words here are the difference between a good educated guess and a
"measurement"
Meters don't "measure" PPM, but they can be used to make a pretty close
guess as confirmed by comparing *numbers* derived by devises that DO
"measure" it.
Apples and oranges are nearly the same size.
But first, you have to wait for the number you get from the meter to stop
changing and that can take a few days.
How much it will change is somewhat predictable, but you also need a feel
for why it has changed, how far, as meters can only register part of the
brew and the portion it can't register is a variable.
and they are pretty much useless at over 30 uS /PPM
Thank goodness it doesn't matter much in the "real" world where *how much*
CS you use is entirely intuition.
There are no specific instructions on amounts to be used, for what, that
make any sense at all.
Every person and every situation is different.
It's "Do what works...and if it doesn't, do something different till it does"
..and no real danger in going somewhat cautiously overboard.
Rule of tongue: If it tastes like rocket fuel, be careful with matches.
If it doesn't.... go ahead and douse a fire.
Ode
At 01:49 PM 9/12/2009 +0100, you wrote:
As I said, you can't. Most use TDS meters (total dissolved solids) or
conductivity meters but it is impossible without these astronomically
priced spectrometers, to judge absolutely accurately, the actual ppm. dee
On 11 Sep 2009, at 21:05, Melly Bag wrote:
Marshall,
That would buy a lot of CS! No, no, best affordable gadget to measure
PPM is what i meant.
Melly
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