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Old 07-03-2010, 12:08 AM   #1
zippe
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Default Homemade rum - fermentation question from a beginner.

Total beginner here.

I'm attempting to brew homemade rum and I have a few questions regarding fermentation. I'm fermenting the rum in large glass jugs and using pricked balloons as fermentation locks (primitive, I know).

I've already started fermentation for a trial batch and so far it is going reasonably well. The liquid is rapidly bubbling (I'm using Alcotec 48 hour turbo yeast) and the balloons are effectively releasing the generated CO2. My only concern is this: the fermenting mixture appears to be losing some volume. Is volume reduction normal during fermentation due to the chemical changes taking place? Another possibility is that some of the newly produced alcohol is slowly evaporating and escaping through the balloon along with the carbon dioxide. Web searching has yielded no answers.

As I mentioned before, I'm a total beginner and I'm not exactly competent. Advice would be greatly appreciated!

Thanks in advance.

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Old 07-03-2010, 01:26 AM   #2
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Making rum requires distillation, which in the US, is illegal. I doubt you will get too much help here with that. Also, i would suggest never using turbo yeast for ANYTHING!

do some googling about making rum, you might get more help that way.

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Old 07-03-2010, 01:28 AM   #3
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X2

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Old 07-03-2010, 01:35 AM   #4
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ewwwwwwwww!

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Old 07-03-2010, 02:03 AM   #5
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Itbl!!!!!!!!!!

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Old 07-03-2010, 02:36 AM   #6
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ban!!!!

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Old 07-03-2010, 02:43 AM   #7
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Sounds like he is fermenting to me. I don't care what he calls it.

No, you shouldn't lose any volume due to fermentation. If you are, you might check with your roommate.

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Old 07-03-2010, 03:03 AM   #8
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I'm planning to leave the rum undistilled. The yeast I'm using yields 40 proof, which is good enough for my purposes. No laws are being broken. I apologize for not making that clear.

Why is turbo yeast discouraged? I've read elsewhere that it's a popular choice for impatient brewers.

Thanks again.

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Old 07-03-2010, 03:13 AM   #9
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While I have 0 experience with turbo yeast I wonder why you'd lose volume. My experience with beer I've not seen any loss of volume. How much volume are you talking about?

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Old 07-03-2010, 03:34 AM   #10
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Quote:
While I have 0 experience with turbo yeast I wonder why you'd lose volume. My experience with beer I've not seen any loss of volume. How much volume are you talking about?
It's not too bad yet. Maybe 5 to 8% of my total volume. But it was quite noticeable after the first night, and it's only had 24 hours of fermentation. I'm inexperienced, but I would have expected a volume increase during fermentation since the alcohol being produced is less dense than water. Perhaps the mass lost through the release of CO2 makes up for it.

I've thought of another possibility: perhaps the mixture was cooling and lost volume because of that? That would explain why one jug's liquid level decreased more than the other (it would have cooled more while the other was being poured).

Thanks for all the help.
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