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Old 03-19-2011, 07:23 PM   #1
brentt03
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Brewed an IPA today, OG estimate was 1.064, we hit 1.046.....the only thing I can think of was we added water to get to the boil level; about 1.25 gallons.....

I'm about to brew another so what do I need to do to correct this?!

Boil volume is 4.33 gallons with preparation of 5.4 gallons for sparging, we use this amount but NEVER are able to get this amount when sparging. So rather than adding water do we just continue to spathe until we get the boil amt desired???

Thanks guys

 
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Old 03-19-2011, 07:25 PM   #2
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Quote:
Originally Posted by brentt03 View Post
Brewed an IPA today, OG estimate was 1.064, we hit 1.046.....the only thing I can think of was we added water to get to the boil level; about 1.25 gallons.....

I'm about to brew another so what do I need to do to correct this?!

Boil volume is 4.33 gallons with preparation of 5.4 gallons for sparging, we use this amount but NEVER are able to get this amount when sparging. So rather than adding water do we just continue to spathe until we get the boil amt desired???

Thanks guys
Yes, adding water will definitely decrease your efficiency/OG. Water has an OG of 1.000, so you're "diluting" your wort when you add water.

Next time, use 1.5 quarts of water per pound of grain, and sparge up to your boil volume.
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Old 03-19-2011, 08:00 PM   #3
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Should we sparge once @ 1.5 quarts per pound -or- initial sparge at 1.5q per, pound, then sparge until boil volume??

Right now within beersmith it has me sparging 3 times

 
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Old 03-19-2011, 08:05 PM   #4
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Quote:
Originally Posted by brentt03 View Post
Should we sparge once @ 1.5 quarts per pound -or- initial sparge at 1.5q per, pound, then sparge until boil volume??

Right now within beersmith it has me sparging 3 times
Don't sparge three times! You're smarter than Beersmith- change the settings so that you sparge twice, with 50% of the sparge volume each time.

Mash with 1.5 quarts per pound. Change that in Beersmith so that you can plan on it, and it'll give you the strike temperatures. You should have about .125 gallon of absorption per pound of grain.

To make it easy, here's an example. 10 pounds of grain. That means you'd mash in with 15 quarts of water. 1.25 gallons of water will be absorbed by the grain. So, you'll get about 2.75 gallons out of the first runnings. That means you'll need 4.25 gallons of sparge runnings (if you're starting with 7 gallons, adjust as needed). So, use 2 gallons of sparge water for two batch sparges to get 7 gallons.

Does that help?
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Old 03-19-2011, 08:21 PM   #5
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I think I am getting it, been a long day so I am a bit slow!

We have 8.95 lbs of grain (so 9lbs), this will give you 13.5q for your initial sparge, after grains absorb the water you are left with 11.25q (2.8gal).

We are brewing a 3.5 gallon batch, with a boil volume of 4.33 (with Beersmith), so we need an additional ~1.5 gallons.

So this leaves us with an additional sparge....where am I missing something??

 
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Old 03-19-2011, 09:07 PM   #6
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Ok, I just added 13.5 quarts to the grain, mashing at 154, i will stir every 15min and in an hour, sparge again with 13.5q

 
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Old 03-20-2011, 12:29 AM   #7
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Any other thoughts???

Just brewed the second batch; we added 13.5q let it sit for 60min, added to boil kettle, added 13.5q to mash, let sit for 10 min, sparged and boiled.

OG estimate according to beersmith was 1.068 we ended up at 1.052, still not sure where the error was??? Our goal was to brew 3.5 gal and that is exactly what we hit but our OG was STILL off.....

We have brewed this batch multiple times, and for some reason we have been off today??

Thoughts? Ideas??

Thanks guys

 
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Old 03-20-2011, 12:34 AM   #8
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I think what you're calling "initial sparge" is really your "strike" when you "mash in". I'm new but correct terminolgy will help the smarter brewers than i help you out.

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Old 03-20-2011, 01:05 AM   #9
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For each batch I was striking at 168 and stepping at 154.....

 
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Old 03-20-2011, 03:03 PM   #10
brentt03
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Any ideas?!

After thinking on it, extra water is killing me in my brews! I'm still off on my sparging

When I followed beersmith method in my other batches I would come out near perfect on my OG, but would end up less on my amt

 
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