Grinder12000
Well-Known Member
I'm trying to learn and work things out and am reading Brewing Classic Styles by Zainasheff/Palmer.
Can someone answer some PROBABLY obvious questions from a newbie who is fascinated but confused?
Walking through the page 37 example
1. Estimate yield of steeping grains 1.25 pounds of crystal malt in 3 gallons of water Assuming 70% yield equates to . . .
(1???) where did this figure come from?
1.25* 24ppg (I assume this is common knowledge for crystal malt?)/3 gal = 10 gravity points or 1.010 - so far so good. Subtract 10 points from boil gravity 55-10=45
2. Calc the amount of extract to use in boil
From the gravity equation 45 / 12 = 3.75 (this is just an easier way to do it - I understand the actual calculation.
So - at this point if we were all done (which we are not). Would I use 3.75 pounds of extract in the partial boil? and would I add that all at once?
I understand the rest and actually understand it MUCH better now that I typed it out.
So the BIG question is this
Where did the "Assuming 70% yield" come from and if I'm using 3.75 pounds of extract in a partial boil - do I just dump it all in at once in the beginning of the boil or as I had read use 1/2 of it and put the rest in near the end of the boil!
Sorry for being long winded but - this is SERIOUSLY fascinating me.
rod
Can someone answer some PROBABLY obvious questions from a newbie who is fascinated but confused?
Walking through the page 37 example
1. Estimate yield of steeping grains 1.25 pounds of crystal malt in 3 gallons of water Assuming 70% yield equates to . . .
(1???) where did this figure come from?
1.25* 24ppg (I assume this is common knowledge for crystal malt?)/3 gal = 10 gravity points or 1.010 - so far so good. Subtract 10 points from boil gravity 55-10=45
2. Calc the amount of extract to use in boil
From the gravity equation 45 / 12 = 3.75 (this is just an easier way to do it - I understand the actual calculation.
So - at this point if we were all done (which we are not). Would I use 3.75 pounds of extract in the partial boil? and would I add that all at once?
I understand the rest and actually understand it MUCH better now that I typed it out.
So the BIG question is this
Where did the "Assuming 70% yield" come from and if I'm using 3.75 pounds of extract in a partial boil - do I just dump it all in at once in the beginning of the boil or as I had read use 1/2 of it and put the rest in near the end of the boil!
Sorry for being long winded but - this is SERIOUSLY fascinating me.
rod