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Old 01-17-2011, 01:09 AM   #1
itismeTravis
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Default Help with smell...H2S or rhino farts?

Recipe Type: All Grain
Yeast: safale s-04
Yeast Starter: nutrient(dap)
Batch Size (Gallons): 6
Original Gravity: 1.060
Final Gravity: 1.018
Boiling Time (Minutes): 1
Color: yellow
Primary Fermentation (# of Days & Temp): 7
Tasting Notes: taste ok a lil bland but no noticable problems




first post so Hello to all!

Made my first cider on the 8th with organic apple juice no preserves and one pound of corn sugar. OG was 1.060 fermented till the 15th and it was at 1.018 so I added P.M.(potassium metabisulphite) to stop the ferm. Also decided to cold crash it in the fridge to make sure the yeast stopped fermenting and die off so i can backsweeten/flavor later. Checked the gravity today(1.018) and it had the rotten egg smell but tastes ok. I didnt notice this smell when I added the P.M. so im a lil worried it might be H2S and I read that rhino farts are early in fermentation not later. Plan on racking/aerating it in the morning to help figure it out but any suggestions wouldbe appreciated! Thanks.

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Old 01-17-2011, 02:11 AM   #2
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Quote:
Originally Posted by itismeTravis View Post
Recipe Type: All Grain
Yeast: safale s-04
Yeast Starter: nutrient(dap)
Batch Size (Gallons): 6
Original Gravity: 1.060
Final Gravity: 1.018
Boiling Time (Minutes): 1
Color: yellow
Primary Fermentation (# of Days & Temp): 7
Tasting Notes: taste ok a lil bland but no noticable problems

first post so Hello to all!

Made my first cider on the 8th with organic apple juice no preserves and one pound of corn sugar. OG was 1.060 fermented till the 15th and it was at 1.018 so I added P.M.(potassium metabisulphite) to stop the ferm. Also decided to cold crash it in the fridge to make sure the yeast stopped fermenting and die off so i can backsweeten/flavor later. Checked the gravity today(1.018) and it had the rotten egg smell but tastes ok. I didnt notice this smell when I added the P.M. so im a lil worried it might be H2S and I read that rhino farts are early in fermentation not later. Plan on racking/aerating it in the morning to help figure it out but any suggestions wouldbe appreciated! Thanks.
Well, I hate to be the one to tell you that k-meta doesn't kill yeast, and it won't stop a fermentation. So, you probably stressed the heck of the active yeast and it'll produce H2S. The racking (don't aerate too much, just splash rack a bit) might help.

If you want to sweeten later, you'll either need to wait until fermentation stops and then add sorbate and sulfite, or pasteurize. If you add sweetening and let it come up to room temperature, you'll have bottle bombs.
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Old 01-17-2011, 03:41 AM   #3
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Well, I hate to be the one to tell you that k-meta doesn't kill yeast, and it won't stop a fermentation. So, you probably stressed the heck of the active yeast and it'll produce H2S. The racking (don't aerate too much, just splash rack a bit) might help.
So on the potassium metabisulphite bottle it says it kills wild yeast? Is that different from normal yeast? And what should I use to stop fermentation next time? is there a chemical or do I have to cold crash or let it finish?

thanks for the help
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Old 01-17-2011, 04:09 AM   #4
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Wine yeast are tolerant to metabisulphite and wild yeast usually isn't. Sorbate is usually used to stop wine yeast and metabisulphite for wild yeast and bacteria.

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Old 01-17-2011, 12:28 PM   #5
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Cold crash and then use the campden and sorbate to prevent fermentation to restarting. That'd do it.

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Old 01-17-2011, 05:37 PM   #6
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thanks for the help. I splash racked it today and it subsided a little but it still had a faint egg smell. Is there anything else I can add to help it or is time the best way? I heard about maybe addding copper but im hesitant to do so unless im sure its H2S.

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Old 01-17-2011, 08:24 PM   #7
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You started fermenation on Jan 8th? I think you need to rein in the horses and let that cider rest a bit. It will degass through your airlock and mellow - i.e. no more rhino farts. I would give it 2-4weeks with an airlock on and I bet your stink will subside.

If you bottle when it smells like sulphur you will regret it.

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Old 01-17-2011, 08:58 PM   #8
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You started fermenation on Jan 8th? I think you need to rein in the horses and let that cider rest a bit. It will degass through your airlock and mellow - i.e. no more rhino farts. I would give it 2-4weeks with an airlock on and I bet your stink will subside.

If you bottle when it smells like sulphur you will regret it.

thanks i think its my best and only option at this point. Im still new to the homebrew world so I have that sky is falling mentality when its not perfect lol
ima let it settle for a few weeks, if anything at least i learned what not to do next time!
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Old 01-17-2011, 09:15 PM   #9
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Haha - no sweat I still do that, then say... deep breathes haha

I would change your approach for next time though. Perhaps, cold crash 2 days, rack off into bottling bucket sulphited at 30-50PPM and sorbate. Stir, rest 15 minutes stir and bottle. That is, if you are going for a still cider with residual sugar.

Remember if the cider SMELLS funky or has active fermenation, don't bottle or you may get off flavors sealed in.

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Old 01-17-2011, 09:22 PM   #10
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I would change your approach for next time though. Perhaps, cold crash 2 days, rack off into bottling bucket sulphited at 30-50PPM and sorbate. Stir, rest 15 minutes stir and bottle. That is, if you are going for a still cider with residual sugar.

Remember if the cider SMELLS funky or has active fermenation, don't bottle or you may get off flavors sealed in.
when u say sulphited do you mean the Potassium Metabisulphites? and how do you determine PPM? I just did 1/4 tsp. for the 6 gal per the bottle. I was actually going to keg it after awhile I just got scared that it would be to dry if I let it finish to 8%. is the sulphite and sorbate just to stop ferm or is it benificial to add in any case?
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