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Old 05-07-2012, 10:39 PM   #1
Dec 2009
Mechanicsburg, Pennsylvania
Posts: 10

After searching the interwebs and HBT, I'm having a hard time figuring out what exactly your standard 1/4" Swivel Nut (silver-colored) is made out of. Stainless? Something else with stainless plate?

Leaving my aerator hose & swivel nut/airstone combo in StarSan for a few hours caused the swivel nut to turn a lovely shade of grey/black.

One doesn't want to risk anything when a piece of metal is in contact with wort for at least 30 minutes ... but if a quick dip in something else removes the tarnish and keeps the metal safe for wort-contact (and saves a buck or two), then cheers to that!

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Old 05-08-2012, 02:01 AM   #2
BargainFittings's Avatar
Nov 2008
Allen TX
Posts: 2,055
Liked 96 Times on 85 Posts

Chrome plated brass. Starsan will eat away the chrome.

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Old 05-08-2012, 03:05 AM   #3
Jul 2011
Windsor, CT
Posts: 306
Liked 10 Times on 10 Posts

Sounds like its ok to use it then. Am I correct? I have a number of previously chromed brass fittings (kettle valves, flare to barb adapters, etc) that are now just brass that I continue to use in my brewery.

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