Happy HolidaySs Giveaway - Last Sponsor Giveaway of the Year!

Come Enter the BrewDeals/FastFerment Giveaway!


Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Stalled fermentation
Reply
 
LinkBack Thread Tools
Old 12-10-2009, 12:07 AM   #1
Auspice
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2009
Location: Ohio
Posts: 187
Default Stalled fermentation

Alright, I'm pretty sure I stalled out the fermentation on my first bock. I brewed it about a month ago and got an OG of 1.044; taking a refractometer reading I'm getting 7 brix and Beersmith is telling me the estimated OG was .998. The beer does still smell worty sweet and I was afraid fermentation had stalled since I'm fermenting in my kegerator which is dialed up to mid to high 40s but does drop to low 40s overnight.

Do I need to buy more yeast and repitch or can I shake up the fermenter and throw a heated blanket on it to warm it up and get things going again?

I don't have the capability of reaching the ideal 46-56 fermentation temp required by the yeast any other way than with the kegerator. :/

__________________
Next Up: Auspice Irish Red
Primary 1:
Primary 2: Slobtoberfest
Secondary 1: N/A
Secondary 2: N/A
Recently finished: Kolsch Batch #2, American Wheat, Kolsch, Rye Beer
Auspice is offline
 
Reply With Quote Quick reply to this message
Old 12-10-2009, 12:27 AM   #2
TipsyDragon
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2009
Location: California
Posts: 2,607
Liked 21 Times on 19 Posts

Default

first, was the OG of .998 actually your FG? if so you need to temp adjust both readings. but from the sound of it you have more than hit an acceptable FG.

if it is stuck adding heat and shaking will do the trick.

__________________
TipsyDragon is offline
 
Reply With Quote Quick reply to this message
Old 12-11-2009, 01:02 AM   #4
Auspice
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2009
Location: Ohio
Posts: 187
Default

I'm new to using a refractometer so I guess I could've entered information in wrong.

My OG with a hydrometer was 1.044 and the refractometer reading I took told me 7 brix. I've already calibrated the refractometer against my hydrometer so I know there's nothing wrong there. I plugged in the 7 brix into the refractometer tool in Beersmith and under "Finished Beer ABV/OG" I have 7 brix and it says "Corrected specific gravity OG is .998"; when I change the drop down from finished to fermenting it says the corrected OG is 1.017 which is still well below the 1.044 that I recorded.

I'm confusing myself, haha.

Assuming I'm stalled, will a heating pad wrapped around half the bucket do the trick? If so, what should I turn the temp to? I'm planning on leaving it in the kegerator so it will still stay in the correct range.

__________________
Next Up: Auspice Irish Red
Primary 1:
Primary 2: Slobtoberfest
Secondary 1: N/A
Secondary 2: N/A
Recently finished: Kolsch Batch #2, American Wheat, Kolsch, Rye Beer
Auspice is offline
 
Reply With Quote Quick reply to this message
Old 12-11-2009, 01:32 AM   #5
Yooper
Ale's What Cures You!
HBT_ADMIN.png
Feedback Score: 0 reviews
 
Yooper's Avatar
Recipes 
 
Join Date: Jun 2006
Location: Upper Michigan
Posts: 62,206
Liked 4773 Times on 3469 Posts
Likes Given: 947

Default

You might not be stalled, you might be done. You need to check the FG to be sure. I wouldn't heat up a bock that may or may not be done. I can't make any sense out of your readings, sorry!

__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006
Yooper is offline
 
Reply With Quote Quick reply to this message
Old 12-11-2009, 04:11 PM   #6
TipsyDragon
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2009
Location: California
Posts: 2,607
Liked 21 Times on 19 Posts

Default

ok sanity check. you said you measured your OG with a hydrometer and got 1.044. stop using the refractometer for now and use your hydrometer to get the current SG and report back.

__________________
TipsyDragon is offline
 
Reply With Quote Quick reply to this message
Old 12-12-2009, 03:42 AM   #7
ajf
Senior Member
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
ajf's Avatar
Recipes 
 
Join Date: Oct 2005
Location: Long Island
Posts: 4,643
Liked 99 Times on 93 Posts
Likes Given: 39

Default

Quote:
Originally Posted by Auspice View Post
Alright, I'm pretty sure I stalled out the fermentation on my first bock. I brewed it about a month ago and got an OG of 1.044; taking a refractometer reading I'm getting 7 brix and Beersmith is telling me the estimated OG was .998. The beer does still smell worty sweet and I was afraid fermentation had stalled since I'm fermenting in my kegerator which is dialed up to mid to high 40s but does drop to low 40s overnight.

Do I need to buy more yeast and repitch or can I shake up the fermenter and throw a heated blanket on it to warm it up and get things going again?

I don't have the capability of reaching the ideal 46-56 fermentation temp required by the yeast any other way than with the kegerator. :/
If your OG was really 1.044, and you are reading 7 brix now with the refractometer, then your gravity is approximately 1.018. (Beersmith cannot estimate an OG reading from a post fermentation refractometer reading.)
I agree with Yooper, when she suggested you check the gravity with a hydrometer.

-a.
__________________

There are only 10 types of people in this world. Those that understand binary, and those that don't.

ajf 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
Stalled fermentation? lyacovett Fermentation & Yeast 13 03-31-2010 06:36 PM
Stalled Fermentation????? kkocher13 General Beer Discussion 10 08-17-2009 09:08 PM
stalled fermentation? jmgreen7 General Beer Discussion 4 07-31-2009 06:16 PM
fermentation stalled? anderj General Techniques 3 12-22-2007 07:47 PM
Stalled Fermentation Fuzz Beginners Beer Brewing Forum 5 11-12-2006 09:53 PM



Newest Threads

LATEST SPONSOR DEALS