Using campden tablets to take out chloramines

Discussion in 'Homebrewing' started by BedetheVenerable, Jan 24, 2013.

  1. I have an activated charcoal filter, through which I'll run my (quite hard and very alkaline) water through slowly to remove chlorine. I believe it's something like 1/4 to 1/3 campden tablet, ground, to treat 7ish gallons of water for a 5 gallon batch, right? When and how do I treat the water, and does it need to sit for awhile, etc? I'm planning on brewing a stout (which is, it looks like, one of the few things my water might be good for w/out treatment).
  2. VikeMan

    VikeMan Champion (845) Pennsylvania Jul 12, 2009 Verified

    One tablet per 20 gallons. When I treat my tap water (not often, because I usually build from distilled), I treat it and let it sit while I mill my grains, which takes a little while because I don't motorize my mill. But I think the reactions are almost instant.
  3. inchrisin

    inchrisin Savant (470) Indiana Sep 25, 2008

    Can someone please crush up a campden tablet and measure it out in tsp for me 0 :) All I have left is the powder from breaking all of mine in half. It's got to be about 1/4 tsp -1/2tsp for a whole tablet, right?
  4. Per Palmer "Campden tablets are used in winemaking and should be available at your homebrew supply shop. One tablet will treat 20 gallons, so use only a quarter or half of the tablet to help it dissolve"
  5. It's reassuring to know that a slight excess isn't any sort of problem , if you use a whole tablet you won't cause the sky to fall in!
  6. What's the 'equivalent' dose that is used in wine that causes headaches?
  7. ericj551

    ericj551 Advocate (590) Alberta (Canada) Apr 29, 2004 Subscriber

    I think the dosing for wine is 1 tablet per gallon.