What's that smell?! - Home Brew Forums
Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > What's that smell?!
Cool Brewing Giveaway - Supporting Membership Drive & Discount

Reply
 
Thread Tools
Old 08-16-2007, 09:32 PM   #1
menschmaschine
Recipes 
 
Jun 2007
Delaware
Posts: 3,272
Liked 38 Times on 30 Posts



I have an all-grain lager fermenting at 48 F in my chest freezer. It's actively bubbling away and is about at high krausen or maybe just a little passed. I used WLP830 (German Lager) yeast. It has that great sulfur aroma, but if I really get my head down in the chest freezer (without losing consciousness) there's an acrid (but somehow pleasant) odor that burns my nose! Anyone know what that is? It's almost estery, but I was surprised at how it burned my nose and took my breath away.



 
Reply With Quote
Old 08-16-2007, 09:35 PM   #2
BierMuncher
...My Junk is Ugly...
HBT_MODERATOR.png
 
BierMuncher's Avatar
Recipes 
 
Jan 2007
St. Louis, MO
Posts: 12,374
Liked 774 Times on 431 Posts


Quote:
Originally Posted by menschmaschine
I have an all-grain lager fermenting at 48 F in my chest freezer. It's actively bubbling away and is about at high krausen or maybe just a little passed. I used WLP830 (German Lager) yeast. It has that great sulfur aroma, but if I really get my head down in the chest freezer (without losing consciousness) there's an acrid (but somehow pleasant) odor that burns my nose! Anyone know what that is? It's almost estery, but I was surprised at how it burned my nose and took my breath away.
That there is CO2.

Pop a cold 7-Up. Pour it into a glass without ice and take a whiff. It'll give you the same suffocating burn.



 
Reply With Quote
Old 08-16-2007, 09:38 PM   #3
Hemi
 
Hemi's Avatar
Recipes 
 
Feb 2007
Denver, CO
Posts: 194
Liked 1 Times on 1 Posts


Quote:
Originally Posted by menschmaschine
I have an all-grain lager fermenting at 48 F in my chest freezer. It's actively bubbling away and is about at high krausen or maybe just a little passed. I used WLP830 (German Lager) yeast. It has that great sulfur aroma, but if I really get my head down in the chest freezer (without losing consciousness) there's an acrid (but somehow pleasant) odor that burns my nose! Anyone know what that is? It's almost estery, but I was surprised at how it burned my nose and took my breath away.
Sounds like CO2 build up and the smell of your beer fermenting. Your chest freezer doesn't allow much of the co2 to escape and since its heavier then oxygen it contains almost pure co2 and will burn if inhaled.
__________________
Primary: Lucky Number 7
Secondary:
Bottled/Conditioning:
On Tap: EdWort's Apfelwein #8, Starlight Cyser, Flat Ass Tired v1.2, Flast Ass Tired v1.2

 
Reply With Quote
Old 08-16-2007, 09:39 PM   #4
Hemi
 
Hemi's Avatar
Recipes 
 
Feb 2007
Denver, CO
Posts: 194
Liked 1 Times on 1 Posts


Beat me to it
__________________
Primary: Lucky Number 7
Secondary:
Bottled/Conditioning:
On Tap: EdWort's Apfelwein #8, Starlight Cyser, Flat Ass Tired v1.2, Flast Ass Tired v1.2

 
Reply With Quote
Old 08-16-2007, 09:41 PM   #5
Beerrific
 
Beerrific's Avatar
Recipes 
 
Mar 2007
Georgia
Posts: 5,538
Liked 53 Times on 45 Posts


We have a big 7'x3'x3' incubator at work, kept at 5% CO2, when you open that thing you get a big nose full of it. Yeah, takes you breath away, literally.

 
Reply With Quote
Old 08-16-2007, 10:15 PM   #6
boo boo
Recipes 
 
Jun 2005
Hearts's Delight, Newfoundland
Posts: 4,163
Liked 35 Times on 30 Posts


That yeast will throw a lot of sulphur with the co2. Enjoy it. It is supposed to smell that way.
__________________
How do you BBQ an elephant....first you get your elephant....

 
Reply With Quote
Old 08-16-2007, 11:00 PM   #7
menschmaschine
Recipes 
 
Jun 2007
Delaware
Posts: 3,272
Liked 38 Times on 30 Posts


Thanks for the responses everyone. I just thought it had to be more than CO2. CO2 is an odorless gas so why would it burn my nose?

 
Reply With Quote
Old 08-16-2007, 11:08 PM   #8
boo boo
Recipes 
 
Jun 2005
Hearts's Delight, Newfoundland
Posts: 4,163
Liked 35 Times on 30 Posts


I think that yeast is the same as WY2308. And if it is, then a diacetyl rest will be in order before you rack to secondary.
__________________
How do you BBQ an elephant....first you get your elephant....

 
Reply With Quote
Old 08-16-2007, 11:13 PM   #9
menschmaschine
Recipes 
 
Jun 2007
Delaware
Posts: 3,272
Liked 38 Times on 30 Posts


Quote:
Originally Posted by boo boo
I think that yeast is the same as WY2308. And if it is, then a diacetyl rest will be in order before you rack to secondary.
Yes, that's part of my regimen. Even if it could do without, I try to do it anyway... just to have the yeast clean it up and ensure fermentation is really complete before lagering.

 
Reply With Quote
Old 08-16-2007, 11:21 PM   #10
boo boo
Recipes 
 
Jun 2005
Hearts's Delight, Newfoundland
Posts: 4,163
Liked 35 Times on 30 Posts


Yeah, me too. I do a rest anyway. Don't hurt.


__________________
How do you BBQ an elephant....first you get your elephant....

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
ag smell 3 beerman6 All Grain & Partial Mash Brewing 4 10-05-2007 07:05 PM
ag smell beerman6 All Grain & Partial Mash Brewing 4 10-05-2007 04:25 PM
How much smell rebelred Beginners Beer Brewing Forum 6 04-25-2006 12:23 PM


Forum Jump