SagamoreAle
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- Jan 11, 2013
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I am making a raspberry melomel and ran into a sulphur (rotten egg) smell about 1 day into fermentation.
I'm using Pasteur Champage Yeast. OG was 55. (I'm planning on stepping this up to an effective OG of around 120).
When I discovered the problem, I added plenty of yeast nutrient and yeast energizer, and aerated with an aquarium pump for about 90 minutes. I also used a wort aerator (the kind that attaches to your electric drill) to degass, which successfully drove out a lot of SO2 based upon the stink it raised. I also added shiny copper pennies.
One day later, I still have plenty of SO2 odor. I've just reduced fermentation temperature from 68 to 63, measured by a thermometer in direct contact with the fermenting mead.
Any ideas about how to treat this further, assuming the temperature adjustment doesn't solve the problem?
I'm using Pasteur Champage Yeast. OG was 55. (I'm planning on stepping this up to an effective OG of around 120).
When I discovered the problem, I added plenty of yeast nutrient and yeast energizer, and aerated with an aquarium pump for about 90 minutes. I also used a wort aerator (the kind that attaches to your electric drill) to degass, which successfully drove out a lot of SO2 based upon the stink it raised. I also added shiny copper pennies.
One day later, I still have plenty of SO2 odor. I've just reduced fermentation temperature from 68 to 63, measured by a thermometer in direct contact with the fermenting mead.
Any ideas about how to treat this further, assuming the temperature adjustment doesn't solve the problem?