Stainless Steel vs. Brass Ball Valves
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SD-SLIM
Well-Known Member
Brass valves contain a small amount of lead, which can leech in to your wort...while stainless is a more durable metal and does not contain lead.
Here is an article in BYO magazine about various metals and how they effect your beer: http://***********/component/resour...November 2007/1149-metallurgy-for-homebrewers
Hex
Well-Known Member
All brass fitting sold in Cali are 'lead-free' so in my opinion there is no difference here, except you probably won't find any 3 piece valves in brass. The brass ones even use a stainless steel ball, with Teflon bushings, just like the stainless.
http://www.nibco.com/cms.do;jsessionid=KVHzgwbp1DEF+SUvrt7IBQ**.app2?id=6967
http://www.nibco.com/cms.do?id=6942
http://www.nibco.com/cms.do;jsessionid=KVHzgwbp1DEF+SUvrt7IBQ**.app2?id=6967
http://www.nibco.com/cms.do?id=6942
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