Happy HolidaySs Giveaway - Winners Re-Re-Re-Re-Drawn - 24 hours to Claim!

Get your HBT Growlers, Shirts and Membership before the Rush!


Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > O2 Results from my new O2 meter!
Reply
 
LinkBack Thread Tools
Old 04-04-2012, 01:05 PM   #21
wottaguy
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
wottaguy's Avatar
Recipes 
 
Join Date: Mar 2009
Location: , FL
Posts: 79
Liked 8 Times on 3 Posts
Likes Given: 35

Default

Quote:
Originally Posted by Veedo View Post
Think you could post up a video next time you aerate some wort? I have an 02 setup, but often wondered how much to goose it. The last couple batches I've done i just set it at a mediumish rate and swirl the wand like you, for about a minute. Sounds like I'm close.
I'll keep the video in mind for next time.
__________________
wottaguy is offline
 
Reply With Quote Quick reply to this message
Old 04-04-2012, 01:20 PM   #22
Seven
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2011
Location: Pittsburgh, PA
Posts: 1,531
Liked 141 Times on 75 Posts
Likes Given: 107

Default

Another test that you might consider would be to skip using the wand and instead flood the head space of the fermentor with O2 for a few seconds then shake the fermentor for 30-seconds. Do this flood and shake process a total of two times then measure the results. I read elsewhere recently that this is another good way to oxygenate wort with pure O2 without the wand. I'm curious what level of dissolved O2 this method would achieve.

Thanks for posting your results!

__________________
Seven is online now
 
Reply With Quote Quick reply to this message
Old 04-04-2012, 08:36 PM   #23
sdugre
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2011
Location: Holyoke, MA
Posts: 106
Default

Quote:
Will this fit on one of those red cylinders typically found at home depot or lowes?
I don't think so, but someone else might be able to confirm. It fits a standard welding type O2 tank like this:

http://www.ebay.com/itm/20-Cu-Ft-Oxy...#ht_4071wt_907
__________________
sdugre is offline
 
Reply With Quote Quick reply to this message
Old 04-04-2012, 09:32 PM   #24
TyTanium
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2011
Posts: 3,949
Liked 549 Times on 387 Posts
Likes Given: 418

Default

Interesting. I'd love to see more data. I have an irrational (rational?) fear of small sample sizes.

__________________
TyTanium is offline
 
Reply With Quote Quick reply to this message
Old 01-22-2013, 03:30 AM   #25
zymurgistic
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2009
Location: Dayton, OH
Posts: 18
Liked 1 Times on 1 Posts

Default

awesome real-world data collection Wottaguy, many thanks! i have one question tho: could you please tell us what size/micron rating your airstone is, maybe even post a link to a pic of the model you use. if i were to duplicate your methods and aerate for the exact same time interval, but with a different airstone, i might get different ppm's of DO and not know it. thanks man!

__________________
zymurgistic is offline
 
Reply With Quote Quick reply to this message
Old 01-22-2013, 03:50 AM   #26
Demus
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2011
Location: Orlando, FL
Posts: 1,227
Liked 157 Times on 128 Posts
Likes Given: 6

Default

Great thread. Your numbers seem to be in agreement with the info in "Yeast", the book by Chris White. I struggled for years with consistency and tried many "fixes" before hanging up the kettle out of frustration. Since returning to brewing and purchasing a simple O2 injection system for $60 at my LHBSS, I've had excellent results and now brew with confidence. Soooooo many posts on here related to slow, stuck, problem fermentations are written by posters who "shake and swirl". If only they'd accept the fact that O2 is hugely important for the yeast and shaking and splashing just can't achieve optimal levels in a reasonable amount of time. I recently spoke to a brewmaster at a brewpub who also agreed that O2 content in wort was his primary concern prior to pitching. I'm not sure why so many resist, but resistance is futile!!!

__________________
Demus is offline
wottaguy Likes This 
Reply With Quote Quick reply to this message
Old 01-22-2013, 04:16 AM   #27
wottaguy
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
wottaguy's Avatar
Recipes 
 
Join Date: Mar 2009
Location: , FL
Posts: 79
Liked 8 Times on 3 Posts
Likes Given: 35

Default

Quote:
Originally Posted by zymurgistic View Post
awesome real-world data collection Wottaguy, many thanks! i have one question tho: could you please tell us what size/micron rating your airstone is, maybe even post a link to a pic of the model you use. if i were to duplicate your methods and aerate for the exact same time interval, but with a different airstone, i might get different ppm's of DO and not know it. thanks man!
Yes...I use a 2 micron stone that can be had here>

http://www.northernbrewer.com/shop/c...-2-micron.html
__________________
wottaguy is offline
 
Reply With Quote Quick reply to this message
Old 01-22-2013, 04:30 AM   #28
acidrain
Feedback Score: 3 reviews
Recipes 
 
Join Date: Jul 2012
Location: Seattle, Washington
Posts: 1,737
Liked 136 Times on 118 Posts
Likes Given: 32

Default

Very good info!
What size batch?
How vigorous was the bubbling? SS air stone I assume?
Did you get a pressure or flow reading while oxygenating?

Oops, I see you already answered about the stone size.

__________________

Keg #1: Brown Bomber Bourbon/Oak Vanilla Porter
Keg #2: Lawnmower APA
Bottled: Mjolnir Mead, Lazy Daze Hefe.

acidrain is offline
 
Reply With Quote Quick reply to this message
Old 01-22-2013, 04:49 AM   #29
wottaguy
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
wottaguy's Avatar
Recipes 
 
Join Date: Mar 2009
Location: , FL
Posts: 79
Liked 8 Times on 3 Posts
Likes Given: 35

Default

Quote:
Originally Posted by acidrain View Post
Very good info!
What size batch?
How vigorous was the bubbling? SS air stone I assume?
Did you get a pressure or flow reading while oxygenating?

Oops, I see you already answered about the stone size.
5.2G wort in a 6G Better Bottle
I have no way to check pressure but the bubbling was at a medium rate to not let the surface "churn".
Thanks!
__________________
wottaguy is offline
 
Reply With Quote Quick reply to this message
Old 01-22-2013, 04:59 AM   #30
theveganbrewer
Feedback Score: 1 reviews
Recipes 
 
Join Date: Sep 2011
Location: Beaverton, OR
Posts: 1,941
Liked 292 Times on 207 Posts
Likes Given: 265

Default

My hero. Science is real. The yeast book has something like 4PPM for shaking too, didn't it?

__________________

-Retired Homebrewer

theveganbrewer is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Anyone tried this low cost oxygen flow meter? McCue Fermentation & Yeast 14 09-17-2013 10:18 PM
2 rehydrations 2 different results smellgoats Fermentation & Yeast 6 05-26-2012 12:11 AM
Results of yeast washing -- is there enough? ed_brews_now Fermentation & Yeast 4 07-23-2011 12:44 AM
Good results with S-04 in a barleywine Nateo Fermentation & Yeast 5 02-20-2011 08:20 PM
New stir plate - results are in old_tx_kbb Fermentation & Yeast 11 10-16-2010 03:18 PM



Newest Threads

LATEST SPONSOR DEALS