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Old 01-24-2009, 01:45 AM   #1
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Default OG Adjustment

Anyone know how much of an adjustment adding 3/4 gal. of water to top off of fermenter? Like an idiot I took a sample prior to adding the water then found out I was short of my volume, so added the 3/4 gallon of water to bring it back up to the 5 gal mark, added my yeast and buttoned it all up. Don't want to go back in now 3 hours later and try to steal another sample.

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Old 01-24-2009, 02:03 AM   #2
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I've done the same thing...(on purpose) and came up with .002 for 1/2 gal.
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Old 01-24-2009, 03:00 AM   #3
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Multiply you7 gravity by the original volume, and divide by the final volume.
If you added 3/4 gallon to 4 1/4 gallon to reach 5 gallon, multiply by 4.25, and divide by 5.

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