Can a kettle screen cause low efficiency? - Home Brew Forums
Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Can a kettle screen cause low efficiency?

Reply
 
Thread Tools
Old 07-07-2012, 08:54 PM   #1
Rau71
Recipes 
 
Feb 2012
San Miguel, Ca
Posts: 59
Liked 1 Times on 1 Posts



I am not very DIY capable so instead of a manifold or stainless hose I bought the kettle screen/bazooka tube. Would that have anything to do with my low efficiency number or is it just my poor technique as I gain knowledge on how to improve my process? A link to the tube I bought. I got it at AHS when I started.
(http://www.ebay.com/itm/SS-Bazooka-S...#ht_2224wt_905).



 
Reply With Quote
Old 07-07-2012, 09:02 PM   #2
Zen_Brew
Recipes 
 
May 2009
Seattle
Posts: 1,865
Liked 23 Times on 23 Posts


Just how low an efficiency are you getting? You should be able to get a pretty decent efficiency using the screen. A false bottom might improve your efficiency, but there is no reason you shouldn't be able to get 70%+ efficiency with just the screen. It is more likely a process or crush issue if it is very poor.


__________________
Primary: German Hef, Belgian IPA, Scottish 80, Belgian Dubbel
On Tap: Oatmeal Stout, Vanilla Oatmeal Stout, Belgian Dark Strong, Munich Dunkel, Dunkel Weizen, Oktoberfest, Bock, IPA, Black IPA, English IPA, Pale Ale

Using the mind to look for reality is delusion. Using your senses to look for reality is awareness.

"One time I was so desperate for a beer I snuck into the football stadium and ate the dirt under the bleachers." Homer Simpson

Life, Liberty, and the Pursuit of Hoppiness

 
Reply With Quote
Old 07-07-2012, 09:10 PM   #3
Rau71
Recipes 
 
Feb 2012
San Miguel, Ca
Posts: 59
Liked 1 Times on 1 Posts


I have done 6 AG batches and every one has been between 50-55%. My batch today I accounted for the low efficiency and bought a bigger grain bill to hit my OG. I have bought grains from AHS, NB, and my LHBS. I just bought a grain mill so my next batch I will crush, but I think I need to tighten up my process in the Mash and Fly sparge to improve my efficiency.

 
Reply With Quote
Old 07-07-2012, 09:18 PM   #4
ajf
Senior Member
HBT_LIFETIMESUPPORTER.png
 
ajf's Avatar
Recipes 
 
Oct 2005
Long Island
Posts: 4,646
Liked 105 Times on 99 Posts


Fly sparging with a bazooka tube is going to be inefficient. To fly sparge effectively, you need a false bottom or manifold that covers the entire base of the MLT otherwise you will get channeling.

-a.
__________________
There are only 10 types of people in this world. Those that understand binary, and those that don't.

 
Reply With Quote
Old 07-07-2012, 09:19 PM   #5
duboman
Recipes 
 
Jul 2011
Glenview, IL
Posts: 6,368
Liked 508 Times on 470 Posts


Quote:
Originally Posted by Rau71
I have done 6 AG batches and every one has been between 50-55%. My batch today I accounted for the low efficiency and bought a bigger grain bill to hit my OG. I have bought grains from AHS, NB, and my LHBS. I just bought a grain mill so my next batch I will crush, but I think I need to tighten up my process in the Mash and Fly sparge to improve my efficiency.
+1 to milling your own grain! Also, with fly sparging it should take at least an hour and you need to be sure there is always a little water sitting over the grain bed as you go. Mash temps are also important so be sure your thermometer is calibrated properly
__________________
Nothing Left to do but smile and drink beer.....

The Commune Brewing Company-Perfecting the "art" of beer since 2010

 
Reply With Quote
Old 07-07-2012, 09:28 PM   #6
chuckstout
Recipes 
 
Feb 2012
, Wa
Posts: 895
Liked 219 Times on 146 Posts


Quote:
Originally Posted by duboman

+1 to milling your own grain!
+2 milling your own grain, run your hands through it to make sure its all crushed

 
Reply With Quote
Old 07-07-2012, 09:33 PM   #7
Rau71
Recipes 
 
Feb 2012
San Miguel, Ca
Posts: 59
Liked 1 Times on 1 Posts


Is it possible to get a false bottom made for a rectangle cooler? I have only seen circular ones. That being said would it be worth it to get a circular Mash tun and a false bottom? I am not confident in my ability to make a manifold for my Rectangular mash tun.

 
Reply With Quote
Old 07-07-2012, 09:48 PM   #8
ajf
Senior Member
HBT_LIFETIMESUPPORTER.png
 
ajf's Avatar
Recipes 
 
Oct 2005
Long Island
Posts: 4,646
Liked 105 Times on 99 Posts


Quote:
Originally Posted by Rau71 View Post
Is it possible to get a false bottom made for a rectangle cooler? I have only seen circular ones. That being said would it be worth it to get a circular Mash tun and a false bottom? I am not confident in my ability to make a manifold for my Rectangular mash tun.
I don't think you can get false bottoms for a rectangular cooler, but you can certainly batch sparge which should give you much better efficiency.

-a.
__________________
There are only 10 types of people in this world. Those that understand binary, and those that don't.

 
Reply With Quote
Old 07-07-2012, 10:52 PM   #9
niquejim
Burrowing Owl Brewery
HBT_LIFETIMESUPPORTER.png
 
niquejim's Avatar
Recipes 
 
Jul 2007
Cape Coral Florida
Posts: 2,378
Liked 51 Times on 40 Posts


"Can a kettle screen cause low efficiency?"

No


Something else is wrong. I have a 4" stainless braid and I consistently get 84-85%. Now that you have a mill there is a saying, that while not big on this site, that has been around awhile. Crush til your scared

 
Reply With Quote
Old 07-07-2012, 10:59 PM   #10
Denny
HBT_LIFETIMESUPPORTER.png
Recipes 
 
Jun 2005
Eugene, OR
Posts: 4,675
Liked 608 Times on 438 Posts


Batch sparge with that setup and your efficiency should go up.


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

www.dennybrew.com

http://www.experimentalbrew.com - "Homebrew All Stars" now shipping!

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Firsts: All-Grain, BIAB, No-Chill, New Kettle, Poor Efficiency cadaverous All Grain & Partial Mash Brewing 8 07-18-2011 08:37 PM
Has anyone use the Brewers Edge Kettle Screen in a mash tun? Rolly All Grain & Partial Mash Brewing 10 06-12-2011 02:35 AM
Brewhouse Efficiency - Kettle or Bucket? BrewBrain All Grain & Partial Mash Brewing 3 04-26-2009 04:44 PM
Kettle Hop Screen issues 8string All Grain & Partial Mash Brewing 11 06-25-2008 08:02 PM
Could someone please check my calcs for this kettle-efficiency spreadsheet? denimglen All Grain & Partial Mash Brewing 2 04-04-2008 05:24 AM


Forum Jump