New Giveaway - Wort Monster Conical Fermenter!

 Home Brew Forums > amount of water needed - does this sound right?

08-13-2008, 01:31 PM   #1
americanweirdo
Feedback Score: 0 reviews
Recipes

Join Date: Jun 2008
Posts: 31
Liked 1 Times on 1 Posts

 amount of water needed - does this sound right?

i'll be doing my first AG this sunday and i've got a question about the amount of water needed for mashing and batch sparging. i've heard everything from "mash water=1.5qt/lb, sparge=.5gal./lb." to "use enough sparge water to bring it up to your boil volume". i keep getting conflicting numbers.

i used the sparge calculator at tastybrew.com and came up with these figures:

11 lb. grainbill
target OG=1.050

the calculator tells me to add an extra pound of grain... 12.2 lb. of grain now.

total mash water volume=4.8gal
1st runoff volume=3.3gal
sparge water required=3.3gal
2nd runoff volume=3.3gal

do these figures sound right to everyone? any help would be tremendously appreciated!

__________________

08-13-2008, 01:38 PM   #2
Displaced MassHole
Feedback Score: 0 reviews
Recipes

Join Date: May 2008
Location: San Diego
Posts: 1,155
Liked 7 Times on 6 Posts

http://onebeer.net/batchspargecalc.shtml

See if this helps, it sounds about right to me.

__________________

08-13-2008, 10:33 PM   #3
malkore
Feedback Score: 0 reviews

Recipes

Join Date: Jun 2007
Posts: 6,922
Liked 32 Times on 30 Posts
Likes Given: 9

Sounds right. Different peopel like different water to grain ratio's...and different recipes with 'fancy' mash schedules will cause changes to those rules of thumb too.

I'm confused why the calculator tells you to add an extra pound of grain...I've never used tasteybrew calculator.

Is this someone else's recipe? I can see if its an established recipe at say...80% efficiency...and if you plug it into a calculator that's set for 70% efficiency, you'll need about 1 lb of grain to raise it back to the expected target gravity.

personally I like beertools.com - get the free membership and you can save one recipe at a time (easy to email it to yourself so you have room to save a new recipe). I use it a lot.

my only other suggestion: try lowering the mash water to 1.25 quarts per pound of grain...or about 3.8 gallons for the mash.
then up your sparge volume, but do TWO sparges instead of one...equal volumes.
So, 3.8gal for mash, then like 2.25gal for sparge 1 and 2.25gal for sparge 2.

Doing two batch sparges like that tends to up your efficiency...efficiency is good.

__________________
Malkore
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10

08-14-2008, 11:31 AM   #4
americanweirdo
Feedback Score: 0 reviews
Recipes

Join Date: Jun 2008
Posts: 31
Liked 1 Times on 1 Posts

Thanks for the help!

Quote:
 Originally Posted by malkore Doing two batch sparges like that tends to up your efficiency...efficiency is good.
If I'm doing two sparges, do I split up the settling time before the vorlauf and drain? For exmaple, if I were doing one sparge.... I would sparge and let it sit for 10 minutes, vorlauf, drain...

But... If I do two sparges, would I only let it sit for 5 minutes each time? Or is this completely irrelevant?
__________________

08-14-2008, 11:59 AM   #5
Yooper
Ale's What Cures You!
Feedback Score: 0 reviews

Recipes

Join Date: Jun 2006
Location: Upper Michigan
Posts: 58,636
Liked 3856 Times on 2817 Posts
Likes Given: 644

Quote:
 Originally Posted by americanweirdo Thanks for the help! If I'm doing two sparges, do I split up the settling time before the vorlauf and drain? For exmaple, if I were doing one sparge.... I would sparge and let it sit for 10 minutes, vorlauf, drain... But... If I do two sparges, would I only let it sit for 5 minutes each time? Or is this completely irrelevant?
I always stir it well and let it sit about 5-10 minutes, but I've heard it's not necessary to wait. I don't time it- I just add the sparge water, stir well, check the temperature, and then wait a bit until there is some clear liquor floating on the top, vorlauf, then drain and do it again.
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

08-14-2008, 10:15 PM   #6
malkore
Feedback Score: 0 reviews

Recipes

Join Date: Jun 2007
Posts: 6,922
Liked 32 Times on 30 Posts
Likes Given: 9

as yooper says, timing between vorlauf and draining the runnings isn't too crucial. if you can get clear runnings in 5 minutes...drain it!

__________________
Malkore
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10