Coldbreak Brewing Giveaway - Open to All!

Home Brew Forums > Home Brewing Beer > General Techniques > Aerating your wort
Reply
 
Thread Tools
Old 02-04-2009, 07:50 PM   #31
springer
Feedback Score: 0 reviews
 
springer's Avatar
Recipes 
 
Join Date: Feb 2008
Location: Wappingers falls NY
Posts: 4,993
Liked 22 Times on 20 Posts

Default

I use a 2 micron stone with O2... But I use Danstar dry yeast most of the time. And their instructions say aeration is not needed I do aerate but maybe I am just wasting O2 .

Something that confuses me also is, why do we aerate the wort when using starters? If we pitch the proper amount of yeast cells they should go right to work and not reproduce ...


__________________
'The taxpayer: That's someone who works for the federal government but doesn't have to take the civil service examination.'- Ronald Reagan
springer is offline
 
Reply With Quote
Old 02-04-2009, 08:00 PM   #32
PhlyanPan
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2009
Location: NY
Posts: 222
Liked 2 Times on 2 Posts

Default

Quote:
Originally Posted by GilaMinumBeer View Post
Because not too many of us HB'ers have fermenters that would withstand 30psi? And inline is easier.
Couldn't you just aerate it in the keg like you would carbonate and then rack it to your fermenter once it's aerated? Easier is a valid point though.


PhlyanPan is offline
 
Reply With Quote
Old 02-04-2009, 08:57 PM   #33
BioBeing
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2009
Location: Memphis, TN
Posts: 1,519
Liked 8 Times on 7 Posts

Default

Quote:
Originally Posted by springer View Post
Something that confuses me also is, why do we aerate the wort when using starters? If we pitch the proper amount of yeast cells they should go right to work and not reproduce ...
From the wyeast link provided earlier, even well pitched yeast will still undergo one or two doublings, depending on the dO of the wort.
BioBeing is offline
 
Reply With Quote
Old 02-04-2009, 09:18 PM   #34
ArcaneXor
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2007
Posts: 4,559
Liked 112 Times on 100 Posts
Likes Given: 32

Default

Quote:
Originally Posted by PhlyanPan View Post
Couldn't you just aerate it in the keg like you would carbonate and then rack it to your fermenter once it's aerated? Easier is a valid point though.
Any oxygen beyond the saturation point (usually about 8.5-11 ppm in water, wort is somewhat lower, depending on its SG) will outgas within a few hours if undisturbed. If you rack or otherwise disturb it, most of what you put in will come out of solution pretty much right away. In other words, you would be throwing money out of the window.
ArcaneXor is offline
 
Reply With Quote
Old 02-04-2009, 09:28 PM   #35
PhlyanPan
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2009
Location: NY
Posts: 222
Liked 2 Times on 2 Posts

Default

Quote:
Originally Posted by ArcaneXor View Post
Any oxygen beyond the saturation point (usually about 8.5-11 ppm in water, wort is somewhat lower, depending on its SG) will outgas within a few hours if undisturbed. If you rack or otherwise disturb it, most of what you put in will come out of solution pretty much right away. In other words, you would be throwing money out of the window.
Gotcha. Didn't know that. Well that makes it a pretty stupid idea then. Thanks!
PhlyanPan is offline
 
Reply With Quote
Old 02-04-2009, 09:34 PM   #36
moti_mo
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Denver, CO
Posts: 561
Liked 32 Times on 26 Posts

Default

I always put the end of my auto-siphon tubing into two re-usable mesh hop bags and siphon through these bags into the carboy. This serves the two purposes of 1) coarse filtration of the wort, and 2) oxygenating the wort - I always have several inches of froth on top of the wort once its in the carboy. I always get really fast take-offs using this method.


moti_mo is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
aerating the wort Mr. Awesome Beginners Beer Brewing Forum 17 07-03-2008 03:40 AM
Aerating hot wort Hikeon3 General Techniques 6 06-19-2008 09:21 PM
Aerating wort. mikeyc General Techniques 12 11-07-2007 04:54 PM
aerating wort neuron555 General Techniques 3 10-12-2007 04:18 AM
aerating the wort jagg All Grain & Partial Mash Brewing 22 03-25-2007 08:19 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS