TastyAdventure
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- Sep 15, 2013
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So I googled "Partigyle chart" images and found this screenshot:
View attachment ImageUploadedByHome Brew1430494279.545171.jpg
It seems to show how you can swap out a given amount of gallons in each batch to achieve different gravities. This got me really excited, but I searched a could not find the chart on the "host" website or anywhere else.
So I got to thinking, why can't I just pull out the pen and paper and figure it out myself?
You need to understand the basics of gravity points per gallon, and how that does not change with boil off/dilution, to follow my math here.
I MAY BE WRONG HERE, but check out my calculations.
I normally brew 10 gallon batches at 65% efficiency. I know from experience that boiling off 2.5 EXTRA gallons (which I will be doing in this case, because of 2 separate boils) that I will net 5% extra efficiency per se.
So with my system, 23.5 lbs of grain at 10 gallons and 70% efficiency = 1.060 OG.
If I did a normal Partigyle, I could get 5 gal of 1.080 wort with 1st runnings, and 5 gallons of 1.040 wort with second runnings.
You can reference this chart here for figuring that out:
View attachment ImageUploadedByHome Brew1430494406.481286.jpg
I don't want a beer that big nor a beer that small, so below is my math on how I think I can achieve my desired 2 OGs of 1.068 and 1.052...
You can see that I will be swapping 2.25 gallons from the first runnings with 2.25 gallons of the second runnings, preboil.
I did the same math down below with several different amounts of swapping until I landed on 2.25.
View attachment ImageUploadedByHome Brew1430494461.375075.jpg
I will be brewing this batch in June (wish I could fit it in earlier, but I gotta get a hefe going for summer!)
I'll report back on how it went.
View attachment ImageUploadedByHome Brew1430494279.545171.jpg
It seems to show how you can swap out a given amount of gallons in each batch to achieve different gravities. This got me really excited, but I searched a could not find the chart on the "host" website or anywhere else.
So I got to thinking, why can't I just pull out the pen and paper and figure it out myself?
You need to understand the basics of gravity points per gallon, and how that does not change with boil off/dilution, to follow my math here.
I MAY BE WRONG HERE, but check out my calculations.
I normally brew 10 gallon batches at 65% efficiency. I know from experience that boiling off 2.5 EXTRA gallons (which I will be doing in this case, because of 2 separate boils) that I will net 5% extra efficiency per se.
So with my system, 23.5 lbs of grain at 10 gallons and 70% efficiency = 1.060 OG.
If I did a normal Partigyle, I could get 5 gal of 1.080 wort with 1st runnings, and 5 gallons of 1.040 wort with second runnings.
You can reference this chart here for figuring that out:
View attachment ImageUploadedByHome Brew1430494406.481286.jpg
I don't want a beer that big nor a beer that small, so below is my math on how I think I can achieve my desired 2 OGs of 1.068 and 1.052...
You can see that I will be swapping 2.25 gallons from the first runnings with 2.25 gallons of the second runnings, preboil.
I did the same math down below with several different amounts of swapping until I landed on 2.25.
View attachment ImageUploadedByHome Brew1430494461.375075.jpg
I will be brewing this batch in June (wish I could fit it in earlier, but I gotta get a hefe going for summer!)
I'll report back on how it went.