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Old 01-21-2013, 01:53 AM   #1
maxcar13
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Default Sparging ruining OG

I've done about 5 all grain batches now and I've tried batch sparging as well as fly sparging. I end up hitting my OG on my first runnings but then after sparging my OG drops significantly. Any advice?

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Old 01-21-2013, 02:18 AM   #2
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Sounds like you're getting poor efficiency if your first runnings are only at the expected gravity for the whole boil volume. Either that or your calcuations are off. You are not expecting your gravity pre boil to be your recipe's OG, right? In other words you are taking into account the boil off.

Need more details - gravities, volumes, mash thickness, temps, process.

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Old 01-21-2013, 04:37 AM   #3
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Look at this chart. Your first running, i.e. the wort in your MLT prior to ANY sparging should be close to these values:



For instance, using 1.5 qts per pound, maximum extraction would be about 1.082. You should be about to get about 95% of that (1.078). If you are not getting that, then you have conversion problems (temp, grain crush, pH, etc.)

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