Unpleasant smell - Home Brew Forums

Register Now!
Home Brew Forums > Wine, Mead, Cider, Sake & Soda > Cider Forum > Unpleasant smell

Reply
 
Thread Tools
Old 02-21-2013, 12:57 PM   #1
trbig
Recipes 
 
Feb 2013
, Oklahoma
Posts: 327
Liked 88 Times on 63 Posts



My cider took almost 10 days to quit bubbling out of the air lock. I gave it another day, then pulled the air lock and used a sterilized siphon to get a sample for the gravity, which came out to .996 1/2. (Used EC-1118 yeast) After tasting the sample, it wasn't bad. Very dry and little alcohol taste, but after swallowing, you could feel the warmth in your mouth and throat. A little Stevia added and it was quite pleasant.

I put the air lock back on, and it started bubbling again for @ an hour.. assuming the yeast eating up the oxygen that got in during the sampling? That evening, I put the cider out in the garage to cold crash it since it stays in the low 40's out there right now. After 3 days, I went out last night to transfer it to a secondary. The air lock liquid was level, indicating no pressures had built up, but when I removed the lid to siphon, it now has a DEFINITE sulphur/yeast/sour smell, and the taste was not pleasant at all. Did something go bad? Did I leave it on the yeast too long? Is it something you think will age out, or do you think the batch got infected somehow? I always try to be extremely sanitary, but how can this cider go from pleasant, to awful in 3 days?
__________________
Try to be the person your dog thinks you are.

Quote:
Originally Posted by dgr View Post
Sorry if I'm rambling. Vicodin, Flexeril, mead and rice wine are a nasty combination. I highly recommend it.

 
Reply With Quote
Old 02-21-2013, 01:24 PM   #2
LeBreton
Recipes 
 
Nov 2011
Finger Lakes, NY
Posts: 1,131
Liked 98 Times on 86 Posts


This is pretty normal, do a search on 'rhino farts' for a million threads on the subject, it's the result of yeast stress, in this case probably caused by the rapid drop in temperature and the lack of yeast nutrients left in the juice at this point. Since the batch it done, consider racking today, it may remove the smell.
__________________
In all the states no door stands wider,
To ask you in to drink hard cider

 
Reply With Quote
Old 02-21-2013, 02:36 PM   #3
trbig
Recipes 
 
Feb 2013
, Oklahoma
Posts: 327
Liked 88 Times on 63 Posts


I did rack it to the secondary last night. I'll leave it out in the cold for a while more before bottling.

Never heard of rhino farts before.. but will check into it. Thanks. I just didn't want to make a big batch of apple vinegar.
__________________
Try to be the person your dog thinks you are.

Quote:
Originally Posted by dgr View Post
Sorry if I'm rambling. Vicodin, Flexeril, mead and rice wine are a nasty combination. I highly recommend it.

 
Reply With Quote
Old 02-21-2013, 03:00 PM   #4
trbig
Recipes 
 
Feb 2013
, Oklahoma
Posts: 327
Liked 88 Times on 63 Posts


After reading up a bit, I don't see any obvious reasons people get the rhino farts. Seems someone does the exact same method as someone else, and one gets it, the other doesn't. I guess between the bit of oxygen getting introduced, as well as the cold temps, I put a damper on the happy little yeast orgy in there, and it responded by showing me it's displeasure...

I'll leave it in the secondary and take a whiff out of the air lock once a week. I see that you don't want to bottle it with that sulphur smell going on.

Either way, I guess it's all good. Worst case scenario.. I've got 5+ gallons of coffee pot lime remover. lol.
__________________
Try to be the person your dog thinks you are.

Quote:
Originally Posted by dgr View Post
Sorry if I'm rambling. Vicodin, Flexeril, mead and rice wine are a nasty combination. I highly recommend it.

 
Reply With Quote
Old 02-21-2013, 03:42 PM   #5
LeBreton
Recipes 
 
Nov 2011
Finger Lakes, NY
Posts: 1,131
Liked 98 Times on 86 Posts


Rhino farts are different from acetobacter, which is what makes cider into vinegar. But over time the smell, which is hydrogen sulfide (H2S) will bind into more complex and difficult to remove molecules. I wouldn't consider it a major or urgent problem, and giving it a couple weeks rest is probably the best bet at the moment, but other solutions include degassing by gently stirring or racking, adding sulfites, adjusting the temperature, and stirring with a copper rod (which binds the H2S into a blue/black precipitate which then falls to the bottom of the fermenter or stick to the rod.
__________________
In all the states no door stands wider,
To ask you in to drink hard cider

 
Reply With Quote
Old 02-21-2013, 04:06 PM   #6
trbig
Recipes 
 
Feb 2013
, Oklahoma
Posts: 327
Liked 88 Times on 63 Posts


A copper rod? Ugh... I keep envisioning taking a nice cold sip of cider.. and having it taste like I just sucked on a penny. lol.
__________________
Try to be the person your dog thinks you are.

Quote:
Originally Posted by dgr View Post
Sorry if I'm rambling. Vicodin, Flexeril, mead and rice wine are a nasty combination. I highly recommend it.

 
Reply With Quote
Old 02-21-2013, 04:58 PM   #7
LeBreton
Recipes 
 
Nov 2011
Finger Lakes, NY
Posts: 1,131
Liked 98 Times on 86 Posts


Yeah, there's a reason I put it last in line. More of a worst case scenario solution when nothing else works.
__________________
In all the states no door stands wider,
To ask you in to drink hard cider

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Unpleasant smell coming from airlock... chungking Beginners Beer Brewing Forum 11 11-12-2012 12:04 AM
Getting rid of unpleasant smell from corny keg lid justabeergeek Bottling/Kegging 8 03-07-2012 10:24 PM
Unpleasant bitterness in my last brew kryznic Beginners Beer Brewing Forum 4 03-16-2011 07:03 PM
My beer has an unpleasant after taste generalstores Beginners Beer Brewing Forum 3 11-19-2009 11:00 PM
Unpleasant Aftertaste spacebarcowboy Cider Forum 11 12-17-2008 01:08 AM


Forum Jump