How much strike and sparge water for double ipa all grain

[eettinger]

I have a recipe for a double ipa from Dry Dock brewing in Colorado. Calls for 15# of Golden Promise grain. Doesnt say on recipe how much strike water to use in the mash or the sparge but does say the temp should be 174 and then 152 in the mash. Also doesnt list the OG but I know the beer is 9% at the brewery. Beer store doesn't open until 11 and we're ready to brew now!
I currently have 3.5 gallons of water warmed up to 175.

If anyone is awake and can respond, I would greatly appreciate it!

 

[dadshomebrewing]

i've heard, read, and used different amounts but generally 1.5 to 2 quarts per pound for mash, and then for sparge about 1 qt per pound, but only up to the full boil volume.

3.5 gallons for your mash seems to be close enough for government work.

but don't put the grain in until that water gets below 170, and 165 is better. you don't want either your mash, nor sparge, to be over 170. it brings out the tannins in the grain.

 

[Ogri]

I have a recipe for a double ipa from Dry Dock brewing in Colorado. Calls for 15# of Golden Promise grain. Doesnt say on recipe how much strike water to use in the mash or the sparge but does say the temp should be 174 and then 152 in the mash. Also doesnt list the OG but I know the beer is 9% at the brewery. Beer store doesn't open until 11 and we're ready to brew now!
I currently have 3.5 gallons of water warmed up to 175.

If anyone is awake and can respond, I would greatly appreciate it!

Probably a good idea to check one of the calculators;

http://www.rackers.org/calcs.shtml

And you'd want to make sure about mashing temps. I think it might be 152 for mashing so, depending on your grain temp, you'd want to be a few degrees higher for your strike temp, then maybe your mash out temp is 174 (although that still seems like it might be a little high). I'm no expert though so don't take this as gospel.

 

[Yooper]

Generally, 1.5 quarts of water per pound of grain in the mash (using the calculator above to get your mash temp- in my system strike temp is about 11 degrees warmer than desired mash temp). So, for a 15# grain bill, that would be 22.5 quarts of water in the mash.

For the sparge, you just sparge up to your boil volume. Since the grain will absorb about 1.75 gallons in the mash, you'll get +/- 3.75 gallons of wort out of the mash.

If your boil volume is 7 gallons, as an example, that means you'll need approximately 3.25 gallons of sparge water.

Those aren't exact, and if your boil volume is more or less you can adjust the amounts, but it's a good guestimate.