So I am sure that this has been covered by someone at one time. My beer has been turning out great for the last year since I have been covering all the bases. There has been one that has slipped past me and I want to get to the bottom of it. So when I drink my home brew, some of them when you burp have like a plastic taste. Now from what I have read I think it is the Chlorine in the water. Not having the $$ for a filter I read that Campden tablets work really well. So my question is how many tablets to treat say 10 gallons of water at a time? Is this something that should be done 24 hours or so before I brew? Just don't want anything to happen to the yeast because I think that Campden also kills yeast, which would suck!