Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Maximizing Efficiency when Batch Sparging
Reply
 
Thread Tools
Old 08-06-2012, 04:01 PM   #181
Denny
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2005
Location: Eugene OR
Posts: 4,421
Liked 487 Times on 357 Posts
Likes Given: 609

Default

Maybe your volume measurements aren't accurate.


__________________
Life begins at 60....1.060, that is!

www.dennybrew.com

http://www.experimentalbrew.com - the website for the book "Experimental Homebrewing"...coming Nov. 2014
Denny is offline
 
Reply With Quote
Old 08-06-2012, 04:15 PM   #182
Viejo
Rebrewer
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2012
Location: Philadelphia, PA
Posts: 37
Liked 1 Times on 1 Posts

Default

I've recalibrated once already, but I don't mind doing it again. I think I'll take my hydrometer into my LHBS next time and see if it matches theirs. They make a lot of good beer on site.

Do I have the "conservation of sugar" formula right?


Viejo is offline
 
Reply With Quote
Old 08-07-2012, 04:55 PM   #183
golbin
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2011
Location: Houston, TX
Posts: 18
Likes Given: 1

Default

cant you just put the hydrometer in water... shouldnt it read 1?

brewon
golbin is offline
 
Reply With Quote
Old 08-07-2012, 06:15 PM   #184
Denny
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2005
Location: Eugene OR
Posts: 4,421
Liked 487 Times on 357 Posts
Likes Given: 609

Default

Quote:
Originally Posted by golbin View Post
cant you just put the hydrometer in water... shouldnt it read 1?

brewon
In distilled water.
__________________
Life begins at 60....1.060, that is!

www.dennybrew.com

http://www.experimentalbrew.com - the website for the book "Experimental Homebrewing"...coming Nov. 2014
Denny is offline
 
Reply With Quote
Old 08-07-2012, 10:55 PM   #185
Viejo
Rebrewer
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2012
Location: Philadelphia, PA
Posts: 37
Liked 1 Times on 1 Posts

Default

It checks out in water.

But are my calculations solid? If I start at 1.050 and 7.75 gal preboil (387.5 pts) shouldn't I end up at 1.062 and 6.25 gal post-boil? I want to confirm the math while I look at calibrations.
Viejo is offline
 
Reply With Quote
Old 08-07-2012, 11:49 PM   #186
MalFet
/bɪər nɜrd/
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
MalFet's Avatar
Recipes 
 
Join Date: May 2010
Location: NYC / Kathmandu
Posts: 8,496
Liked 1411 Times on 935 Posts
Likes Given: 677

Default

Quote:
Originally Posted by Viejo
It checks out in water.

But are my calculations solid? If I start at 1.050 and 7.75 gal preboil (387.5 pts) shouldn't I end up at 1.062 and 6.25 gal post-boil? I want to confirm the math while I look at calibrations.
The math is correct, though it's a small enough margin of error that it is easily attributable to measurement errors. That's why people are keying in on that.
__________________
"Be excellent to each other." -Benjamin Franklin
MalFet is offline
 
Reply With Quote
Old 08-07-2012, 11:54 PM   #187
Viejo
Rebrewer
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2012
Location: Philadelphia, PA
Posts: 37
Liked 1 Times on 1 Posts

Default

Good. I'll fine tune everything. Maybe I'm not too far off. Just looking for predictability.
Viejo is offline
 
Reply With Quote
Old 08-10-2012, 12:53 AM   #188
DrewF
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2010
Location: PA
Posts: 26
Liked 2 Times on 2 Posts
Likes Given: 1

Default

Quote:
Originally Posted by Viejo View Post
If the sugar content in the wort is constant, and the density is a function of wort volume, is there something wrong with my math, or are my water or hydrometer calibrations out of whack?
Another possibility, did you stir the wort thoroughly before taking your sample? If not that could explain why the sample read lower than expected.
DrewF is offline
 
Reply With Quote
Old 08-10-2012, 01:27 AM   #189
Viejo
Rebrewer
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2012
Location: Philadelphia, PA
Posts: 37
Liked 1 Times on 1 Posts

Default

Yeah, pretty well. The final runnings read 1.025, and the preboil gravity was 1.050, so I think it was stirred pretty well.
Viejo is offline
 
Reply With Quote
Old 08-20-2012, 07:58 PM   #190
pensphreak
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2011
Location: Anaheim, CA
Posts: 98
Liked 2 Times on 2 Posts
Likes Given: 1

Default

I've been trying to fix my efficiency problems for a while now. I normally get 60-65% with grain milled at my LHBS. This time, I took those milled grains and used a friend's mill set fairly small (don't know the gap size). Here's the grain bill I used for this recent recipe...

Code:
11 lbs 	Pale Malt (2 Row) US
2 lbs 	Munich Malt
1 lbs 	Caramel/Crystal Malt - 40L
8.0 oz 	Chocolate Malt
6.0 oz 	Acid Malt
4.0 oz 	Midnight Wheat
I mashed with 5.75 gal of water at 164.9 F (153F mash temp) and sparged with 4.15gal of 180.0 F water.

1st runnings: 4gal, 1.074
2nd runnings: 4gal, 1.032
Pre-boil: 8gal, 1.054

Using Kaiser's efficiency brewsheets, I noticed that on this batch I got 91.6% conversion effiency (way higher than usual).

After everything was finished, I added 5 gal cold water to the mash tun, stirred and drained. From that, I got 1.020 wort. The spreadsheet says this is a 68% lauter efficiency.

Is that a normal lauter efficiency for batch sparging with a 10gal Igloo cooler?


pensphreak is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Two types of batch sparging and efficiency. chase All Grain & Partial Mash Brewing 4 06-21-2009 01:26 PM
What % Efficiency do you get batch sparging RobertHSmith All Grain & Partial Mash Brewing 22 12-29-2008 07:27 PM
Batch Sparging EamusCatuli All Grain & Partial Mash Brewing 5 06-21-2008 08:46 PM
Fly Sparging Vs. Batch Sparging New2HomeBrew All Grain & Partial Mash Brewing 28 08-08-2007 05:25 PM
Batch sparging efficiency david_42 All Grain & Partial Mash Brewing 6 04-08-2007 12:40 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS