Kegconnection Complete Starter Kit and More Giveaway!


Home Brew Forums > Home Brewing Beer > General Techniques > Using Olive oil instead of Oxygen

Reply
 
LinkBack Thread Tools
Old 02-01-2008, 07:39 PM   #21
Bsquared
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Bsquared's Avatar
Recipes 
 
Join Date: Oct 2006
Location: San Diego
Posts: 1,808
Liked 55 Times on 51 Posts
Likes Given: 22

Default

Quote:
Originally Posted by Kaiser
I was incorrect here. The yeast gets 8-12 mg O2/l

with the number of 1 mg oil per 25*10^9 cells, that delboy found, a 12*P wort would need about 0.5 mg/l olive oil. Still much less than the O2 that was added.

Kai
I think the statement :

"The basic concept is that since yeast uses an oxygen atom to pull a hydrogen away from an 18 carbon chain unsaturated fatty acid to make a monounsaturated fatty acid chain to help it grow, you could simply provide an 18 carbon monounsaturated fatty acid and it would be able to use that."

Is an over simplification of Fatty acid synthesis, and fatty acid regulation during Aerobic vs' anaerobic growth conditions. By adding O2 you are allowing for the yeast to be more active, and one result of this state in desirable for brewing, the covertion of unsaturated fatty acid to monosaturated fatty acids. This has to do with Membrane fluidity, I assume.

So buy providing the yeast with monounsaturated fatty acids, they don't have to make them, and therefor don't need to be maintained in an aerobic state before going in to the anaerobic state needed for fermentation.

I guess an analogy is to give a man logs and a saw mill to build a house vs giving him the lumber.
And because every thing in the Cellular level happens on such a small scale (Nano - Pico - Femto : 10^-9, 10^-12, 10^-15) you just have to provide a small amount, to Circumvent the path way.
__________________
Bsquared is offline
 
Reply With Quote Quick reply to this message
Old 09-24-2008, 06:58 AM   #22
Nightbiker
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
Nightbiker's Avatar
Recipes 
 
Join Date: Jul 2008
Location: Dover, FL
Posts: 561
Liked 3 Times on 3 Posts
Likes Given: 4

Default

conpewter, from what I recall, the idea was not to boil the oil, but to add the tiny drop (if I recall, they used a thin wire, dipped it in olive oil, and let one drop come off of THAT to measure it out) to the starter. Boiling the oil would likely destroy the very nutrients the yeast are after.

Oxygen is a medical gas. How do y'all get your O2 bottles? Where do you get them filled? Is the stuff from welding supply houses the same?

__________________
Nightbiker is offline
 
Reply With Quote Quick reply to this message
Old 09-24-2008, 07:03 AM   #23
lapaglia
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2008
Location: Denver, Colorado
Posts: 511
Liked 4 Times on 4 Posts

Default

Some of us have a medical reason to have O2 in the house. At the moment since I just was filled up today I have 200 lbs of liquid O2. Its easy in my case to use a little for fermenting. I don't recommend getting sick just to get the O2

__________________
Primary: 3 gallon cider S-04
Secondary: Valentine Apfelwein Clone 1 Gal
Bottled: Halloween Apfelwein Clone 1 Gal
On Deck: 90 Shilling Clone
lapaglia is offline
 
Reply With Quote Quick reply to this message
Old 09-24-2008, 07:36 AM   #24
EvilTOJ
Feedback Score: 0 reviews
 
EvilTOJ's Avatar
Recipes 
 
Join Date: Dec 2005
Location: Portland, OR, Oregon
Posts: 6,466
Liked 35 Times on 29 Posts
Likes Given: 3

Default

I use O2 to satisfy my addiction to burn things. It's a medical condition.

Or, they sell O2 welding bottles at Home Depot for a few bucks.

__________________

There is a very fine line between "hobby" and "mental illness."

EvilTOJ is offline
 
Reply With Quote Quick reply to this message
Old 09-24-2008, 10:05 AM   #25
Revvy
Post Hoc Ergo Propter Hoc
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Revvy's Avatar
Recipes 
 
Join Date: Dec 2007
Location: "Detroitish" Michigan
Posts: 40,804
Liked 2710 Times on 1629 Posts
Likes Given: 3484

Default



Used in a setup like this.

__________________

Like my snazzy new avatar? Get Sons of Zymurgy swag, here, and brew with the best.

Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman

I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew

Revvy is offline
 
Reply With Quote Quick reply to this message
Old 09-26-2008, 08:47 PM   #26
tdavisii
Feedback Score: 0 reviews
 
tdavisii's Avatar
Recipes 
 
Join Date: Jan 2007
Location: St. Louis
Posts: 719
Liked 2 Times on 2 Posts

Default

I will continue to shake my carboys. Not only does it aerate it gives me a little bit of a work out.

__________________
tdavisii is offline
 
Reply With Quote Quick reply to this message
Old 09-26-2008, 10:40 PM   #27
Jonnio
Feedback Score: 0 reviews
 
Jonnio's Avatar
Recipes 
 
Join Date: Dec 2007
Posts: 1,525
Liked 7 Times on 7 Posts
Likes Given: 1

Default

Why not just put a drop of oil on a toothpick and swirl that around in your starter. The amount that would transfer off would likely be closer to trying to make a tiny drop.

__________________

------------------------------------------------
Official member of HBAMAP (Home Brewers Against Murder and Pedophilia)

Quote:
Originally Posted by Revvy View Post
Then that means dumping your beer because you think it's bad is tantamount to abortion! And as Big Kahuna says, drinking a beer too soon is tatamount to beer pedophilia...
Jonnio is offline
 
Reply With Quote Quick reply to this message
Old 09-26-2008, 10:59 PM   #28
phissionkorps
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2008
Location: Fort Worth, TX
Posts: 394
Liked 1 Times on 1 Posts

Default

I tried this with my wit I brewed on Tuesday. I had the most active fermentation I've ever had, and it seems to already be done. Of course, that could just be a coincidence...but I used WB-06, so I don't think so. I used a micropipette to add 20μL to 5gal of beer.

__________________

Primary: star thistle traditional mead
Secondary: mango melomel, Biere de Garde, dark strong braggot, oud bruin, Paulaner clone, coffee RIS
Bottled: rye wit, sticke alt, Graetzer, Apfelwein, zeus SMaSH, APA

phissionkorps is offline
 
Reply With Quote Quick reply to this message
Old 10-21-2008, 10:40 PM   #29
degreesplato
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Posts: 4
Default

So here is my question:
These guys were brewing a belgian, no doubt with a yeast strain that normally makes alot of esters (like a 1214). what happens if you do this in a beer with a cleaner strain (1056 for example)? Do you get alot of wierd esters, or just a little more?
Also, does the oil provide a surface barrier to O2, say after transfer to the secondary.
interesting technique.

__________________
degreesplato is offline
 
Reply With Quote Quick reply to this message
Old 10-22-2008, 05:02 PM   #30
camiller
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2007
Location: Omaha, NE
Posts: 1,882
Liked 27 Times on 27 Posts
Likes Given: 9

Default

Quote:
Originally Posted by Nightbiker View Post
... (if I recall, they used a thin wire, dipped it in olive oil, and let one drop come off of THAT to measure it out) to the starter. ...
Your correct. In the BYO writeup awhile back they used the wire from twist-tie with the outer paper removed. i.e. a very thin wire.
__________________
In Nebraska? Nebraska Brewers Group
My Club OmaHops Homebrew Club

Put yourself on the Homebrewers Map see the forum thread

My ridiculously easy stir plate buildMy Kegerator
camiller 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
Olive Oil Aeration? RedOctober Beginners Beer Brewing Forum 15 04-13-2013 11:49 PM
Oxygen for airation/can I use industrial oxygen? Mainebrew Equipment/Sanitation 20 10-19-2012 07:45 PM
olive oil? stevenryals Beginners Beer Brewing Forum 15 02-15-2011 06:36 PM
High gravity, oxygen, and olive oil FlyGuy General Techniques 26 01-25-2011 01:44 PM
Olive Oil? RonRock Beginners Beer Brewing Forum 10 09-29-2008 01:21 AM