Hi Marshall and other list members,
My EIS was 24 hours old and approximately 25 ppm. It was only slightly
yellow but possibly on the way to a deeper shade.
I have been able to use 3% food grade H2O2 to clear a ~25 ppm. batch in the
past by adding up to one drop per ounce, as I did this time, but in this
case I made mud. I didn't want to wait another day to add the peroxide
(which I probably should have).
I recall that my earlier successes involved a more stabilized EIS, as you
suggested; one having sat on the shelf for several days before adding H2O2.
So, is this a simple case of "haste makes waste", (my suspicion) or do you
think there is more to it?
If I tried adding more peroxide to clear it what would you suggest?
many thanks,
Peter
----- Original Message -----
From: "Marshall Dudley" <[email protected]>
To: <[email protected]>
Sent: Tuesday, July 21, 2009 3:41 PM
Subject: Re: CS>H2O2 Added to EIS Too Soon--Whoops!
Peter Converse wrote:
Hi Folks,
I was pressed for time and added some 3% H2O2 to my quart of one-day-old
EIS and wound up with a jar of grey mud. <sheepish grin>
How long did you wait after brewing before adding the H2O2? I recommend a
minimum of 48 hours. This can happen if added to a fresh brew. It can
also happen with high ppms, over 20.
I am running a replacement batch at the moment but am wondering if this
muddy one is salvageable. Can I clear this brew in some way? Will it do
so on it's own if I wait long enough?
Often adding additional H2O2 will clear it.
Marshall
Many thanks,
Peter
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