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Old 09-06-2013, 04:33 AM   #1
nolabrew85's Avatar
Sep 2012
New Orleans, Louisiana
Posts: 374
Liked 11 Times on 10 Posts

I cannot recirculate the mash or without at least a few inches of foam forming in the tube at first. sometimes I can successfully drain it before it it gets back in the pot, but sometimes the pump is too quick. I prime the pump and everything, but still get this. So first, is this little bit of aeration something that will ruin the beer or will it even be noticeable? and Second, how do stop from this happening without putting a bleeder on the pump--a have a valve on the outlet now and the outlet faces up and the inlet down and the pump is about 14 inches below the kettle and I prime and make sure air escapes before shutting the valve and turning the pump on and then opening the valve. thanks!

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Old 09-06-2013, 12:33 PM   #2
prandlesc's Avatar
Nov 2012
Near Boston, Massachusetts
Posts: 421
Liked 52 Times on 42 Posts

It's not an issue. That little bit of air will not change your wort at all.
On Tap: Reducing my taps from 9 to 5, thinking that 9 might be excessive.
Black Water (Russian Imperial Stout) on Nitro Sparkling Cider
Heady Topper Clone
Wee Heavy

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Old 09-06-2013, 12:50 PM   #3
Aug 2012
Posts: 449
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Hot side aeration (while it can and will occur to homebrewers, it's on such a small scale that it's mostly a null issue).

Breweries need to worry about it more so than us because to sparge and drain their mash tun into the brew kettle it takes a few hours, and then again draining the kettle into the whirlpool and from the whirlpool to knockout. At that point you're talking about a few bbls of hot wort being exposed to oxygen for a few hours rather than the hour of sparging and before the boil (boiling scrubs most of the oxygen out). And then the half hour it takes us to cool out wort down after the boil (at which point we want oxygen in the wort).

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Old 09-08-2013, 04:33 AM   #4
Aug 2011
baltimore, md
Posts: 495
Liked 64 Times on 46 Posts

Hot side aeration isn't even a factor at all. Don't worry about it, and don't believe the hype.

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Old 09-22-2015, 03:30 AM   #5
Sep 2014
Holiday, Florida
Posts: 194
Liked 43 Times on 34 Posts

Originally Posted by eltorrente View Post
Hot side aeration isn't even a factor at all. Don't worry about it, and don't believe the hype.

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Old 09-22-2015, 03:40 AM   #6
slym2none's Avatar
Apr 2015
Durham, NC
Posts: 6,992
Liked 2309 Times on 1477 Posts

HSA is real?

"Hops are a wicked and pernicious weed." - King Henry VIII

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