What's your gap on your barley crusher? - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > What's your gap on your barley crusher?
Cool Brewing Giveaway - Supporting Membership Drive & Discount

Reply
 
Thread Tools
Old 08-04-2009, 04:52 PM   #1
Yooper
Ale's What Cures You!
HBT_ADMIN.png
 
Yooper's Avatar
Recipes 
 
Jun 2006
UP of Michigan, Winter Texan
Posts: 68,505
Liked 7366 Times on 5207 Posts



I used the factory settings (.039 I believe) and liked the look of the crush. My efficiency has always been around 72%. Well, I'm always hearing "crush till you're scared", so today I tightened it up a bit. What's yours set at?


__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

 
Reply With Quote
Old 08-04-2009, 04:54 PM   #2
chumprock
Recipes 
 
Dec 2008
Rochester, NY
Posts: 1,033
Liked 35 Times on 24 Posts


Factory default, and I'm too chicken to muss with it.



 
Reply With Quote
Old 08-04-2009, 04:56 PM   #3
CyclingCraig
Recipes 
 
Dec 2007
Hillsborough, NJ, New Jersey
Posts: 120
Liked 10 Times on 9 Posts


Just brewed over the weekend,

Was at gapped at .034 Eff was about 72 - 75.

Tightened gap down to .029 eff went up to about 85% (Into boiler). (Mash in a cooler with a Hot water heater braided line in a loop for a manifold). No problems with a stuck mash.

 
Reply With Quote
Old 08-04-2009, 04:58 PM   #4
SavageSteve
 
SavageSteve's Avatar
Recipes 
 
Sep 2007
Connecticut
Posts: 984
Liked 9 Times on 6 Posts


I tightened mine to .035, based on the recommendation of a post here on HBT. I had to adjust it anyway, since the rollers weren't quite parallel when I got it, so I figured I'd tighten it up.

I think it gives a very good crush, but I've never actually tested different settings. I've only used it on two brews so far, both a partial mash with double-batch sparging. Didn't get stuck, and I got ~80% efficiency.

-Steve
__________________
On Deck: Jamil's Vanilla Robust Porter
Fermenting: Orange Blossom Mead
Kegs: Element 56 Pale Ale, Ron's Belgian Blonde, Summer'n Saison, Furloughktoberfest '09, Grateful Pale Ale, Sam Adams Cream Stout Clone, EdWort's Apfelwein
Planning: n/a

 
Reply With Quote
Old 08-04-2009, 05:03 PM   #5
BeerPressure
Recipes 
 
May 2008
Dunkirk, NY
Posts: 836
Liked 3 Times on 3 Posts


I think this has been done before, but .036

 
Reply With Quote
Old 08-04-2009, 05:05 PM   #6
cubbies
Tastes like butterdirt
HBT_LIFETIMESUPPORTER.png
 
cubbies's Avatar
Recipes 
 
Nov 2006
St Louis MO
Posts: 1,917
Liked 7 Times on 5 Posts


.037 pretty consistent 75% efficiency.

 
Reply With Quote
Old 08-04-2009, 05:07 PM   #7
mmb
Jazz Hands!
HBT_LIFETIMESUPPORTER.png
 
mmb's Avatar
Recipes 
 
Feb 2008
WBMI
Posts: 29,748
Liked 3917 Times on 3690 Posts


I'm at .030 (checked with feelers) and get around 78% with a double batch sparge at 180F. If I stir a few times during the mash (60 min) I've found I can get up to 83% efficiency, but I'm lazy.
__________________
White Dog Aleworks and Drafthouse

 
Reply With Quote
Old 08-04-2009, 05:20 PM   #8
wildwest450
Registered User
Recipes 
 
Dec 2007
Posts: 8,969
Liked 172 Times on 157 Posts


Factory default and 80%+ on every batch.

 
Reply With Quote
Old 08-04-2009, 05:40 PM   #9
SpanishCastleAle
Recipes 
 
Jan 2009
Central Florida
Posts: 4,338
Liked 36 Times on 36 Posts


I'm just a tiny bit tighter than factory so about .036".

I think that it's a worthwhile test (or series of tests) to measure your conversion efficiency and keep tightening the gap until you get >98% conversion efficiency (before you even start lautering/sparging). Once you're converting everything close to 100% there is no need to go any tighter imo. You'll still lose a bunch of efficiency points in the lauter/sparge but at least now you know exactly where you're losing efficiency because the mash was near 100% converted.

FWIW, @ .036" gap I get ~99% conversion efficiency. I don't get anywhere near that into-the-fermenter though. I lose efficiency in the lauter/sparge, in reserved wort that doesn't go into the kettle, whole hops, etc.
__________________
Early brewers were primarily women, mostly because it was deemed a woman's job. Mesopotamian men, of some 3,800 years ago, were obviously complete assclowns and had yet to realize the pleasure of brewing beer.- Beer Advocate

 
Reply With Quote
Old 08-04-2009, 05:52 PM   #10
enderwig
 
enderwig's Avatar
Recipes 
 
Nov 2007
Dickinson Texas
Posts: 1,433
Liked 8 Times on 8 Posts


Quote:
Originally Posted by wildwest450 View Post
Factory default and 80%+ on every batch.
Same here....


__________________
Read the
Homebrewtalk Wiki!

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Barley Crusher PavlovsCat All Grain & Partial Mash Brewing 14 11-13-2010 02:45 AM
Barley Crusher Sherpa FE For Sale 3 07-20-2009 02:11 PM
Barley Crusher is on the way... jajabee Equipment/Sanitation 10 06-16-2009 08:18 PM
Barley Crusher on the way plumber All Grain & Partial Mash Brewing 4 01-19-2008 02:46 PM
Barley Crusher davidkrau Equipment/Sanitation 4 04-12-2006 02:54 AM


Forum Jump