Get your HBT Growlers, Shirts and Membership before the Rush!


Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Switched from Braided Hose to False Bottom - Big Efficiency Drop
Reply
 
LinkBack Thread Tools
Old 08-29-2013, 05:53 PM   #1
Lumpyyyyy
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2012
Location: Methuen, MA
Posts: 112
Liked 1 Times on 1 Posts
Likes Given: 1

Default Switched from Braided Hose to False Bottom - Big Efficiency Drop

I recently (within the past 6 months) have switched to a false bottom in hopes of relieving myself of all the stuck sparges I've been having. It worked great. Brewed about 5 times and not one stuck sparge. Real problem that I'm having is the fact that my efficiency has dropped from about 75% to 65%. Anyone have any thoughts on why this may be the case?

I batch sparge with keggles for all 3 vessels. My temperature control is weak at best, but it's always been that way.

__________________
Lumpyyyyy is offline
 
Reply With Quote Quick reply to this message
Old 08-29-2013, 05:57 PM   #2
smakudwn
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
smakudwn's Avatar
Recipes 
 
Join Date: Mar 2009
Location: St.Charles, MO
Posts: 1,043
Liked 51 Times on 39 Posts
Likes Given: 8

Default

No idea about why, but you might be able to tighten up your crush now without fear of a stuck sparge?

__________________

*Member: The HBT Sweaty Fat Guys Cigar club

Primary 1: Nothing
Primary 2: Nothing
Kegged: American Brown
Kegged: Nothing
Kegged: Nothing

smakudwn is offline
 
Reply With Quote Quick reply to this message
Old 08-30-2013, 02:10 AM   #3
wilserbrewer
Sponsor
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 9 reviews
 
wilserbrewer's Avatar
Recipes 
 
Join Date: May 2007
Location: Jersey Shore, Jersey
Posts: 7,289
Liked 573 Times on 468 Posts
Likes Given: 11

Default

Just spitballing here...do hou have a large volume under the FB, or dead space?

Are you only doing 5 gallon batches?

If so, try recirculating a few gallons prior to your batch run offs.

wilserbrewer is online now
Denny Likes This 
Reply With Quote Quick reply to this message
Old 08-31-2013, 02:46 AM   #4
msa8967
mickaweapon
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
msa8967's Avatar
Recipes 
 
Join Date: May 2009
Location: North Liberty, Iowa
Posts: 2,589
Liked 72 Times on 59 Posts
Likes Given: 82

Default

If you ever go back to using the braided hose might I recommend that you try making a sock out of voile cloth and place your hose inside it. I secure the open end with a zip tie. I have never had a stuck sparge even with a finer crush for my grain.

025.jpg  
__________________

Mick Arnett
North Liberty, Iowa
"Beer will change the world. I don't know how, but it will."

msa8967 is offline
 
Reply With Quote Quick reply to this message
Old 08-31-2013, 02:55 AM   #5
kh54s10
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2011
Location: Tiverton, Rhode Island
Posts: 7,167
Liked 682 Times on 578 Posts
Likes Given: 173

Default

I use a larger stiffer water heater supply line braid and have had no issues with stuck sparge. My efficiency is all over the place but it is not because of the braid. The beer is good so I don't really worry too much about my efficiency.

My guess at the drop in efficiency would be due to the change in the dead space. I assume you are leaving wort/sugars behind under the FB. I don't know how you deal with that.

__________________
kh54s10 is offline
 
Reply With Quote Quick reply to this message
Old 09-02-2013, 10:05 PM   #6
ColumbusAmongus
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2011
Location: , MI
Posts: 169
Liked 4 Times on 4 Posts
Likes Given: 1

Default

Quote:
Originally Posted by msa8967
Imight I recommend that you try making a sock out of voile cloth and place your hose inside it.
Have any brewing advice? Zing!
__________________
ColumbusAmongus is offline
 
Reply With Quote Quick reply to this message
Old 09-03-2013, 05:03 AM   #7
ReuFroman
Never enough brew gear money.
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
ReuFroman's Avatar
Recipes 
 
Join Date: Oct 2011
Location: Fort Collins, CO
Posts: 244
Liked 11 Times on 10 Posts
Likes Given: 5

Default

I find I get close to 85% when I vorlof for 30 to 45 minutes. Of course a pump helps a bunch.

__________________

--------------------
It's ok to stare at my kegs! Just don't touch them!

ReuFroman is offline
 
Reply With Quote Quick reply to this message
Old 09-04-2013, 01:00 AM   #8
Lumpyyyyy
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2012
Location: Methuen, MA
Posts: 112
Liked 1 Times on 1 Posts
Likes Given: 1

Default

Quote:
Originally Posted by ReuFroman
I find I get close to 85% when I vorlof for 30 to 45 minutes. Of course a pump helps a bunch.
You vorlauf for 30 to 45 minutes on a batch sparge? Seems like overkill
__________________
Lumpyyyyy is offline
 
Reply With Quote Quick reply to this message
Old 09-04-2013, 01:15 AM   #9
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 2 reviews
 
Bobby_M's Avatar
Recipes 
 
Join Date: Aug 2006
Location: Whitehouse Station, NJ
Posts: 22,282
Liked 1073 Times on 716 Posts
Likes Given: 28

Default

I think he means sparge.

Here's why you'd lose efficiency with a false bottom:
1. You don't have a diptube to reach the bottom dish.
2. You have a diptube but you runoff a little too fast at the end, losing siphon before the last gallon or so of the first running wort is able to get below the FB.
3. You are still mashing at 1.25 qt/lb when you have 7/8 of a gallon of pure liquid below the FB. That leaves the grain area too thick and your conversion is suffering.

__________________
BrewHardware.com has a new website. Please check it out and let me know what you think!
New 100% Stainless Steel Heating Elements are IN!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc. Did you know we are also now a full service homebrew shop selling malt, hops, yeast (Wyeast), etc?
Bobby_M is offline
 
Reply With Quote Quick reply to this message
Old 09-04-2013, 02:29 PM   #10
riored4v
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Location: Aurora, CO
Posts: 1,334
Liked 9 Times on 9 Posts

Default

Quote:
Originally Posted by Bobby_M View Post
I think he means sparge.

Here's why you'd lose efficiency with a false bottom:
3. You are still mashing at 1.25 qt/lb when you have 7/8 of a gallon of pure liquid below the FB. That leaves the grain area too thick and your conversion is suffering.
I think this last one might be the cause of my most recent effenciency drop. I too switched over to a false bottom and have been trying to dial in the system. I've noticed the mash is a bit thicker than it used to be.

Is there a recommended water/grain ratio to use when using a false bottom? Would 1.5:1 be overkill?
__________________
Resistance Brewing Co.
Resist Crap, Drink Craft!
riored4v is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Braided Tube vs. Domed False Bottom vs. Flat False Bottom? ianw58 Equipment/Sanitation 11 09-23-2013 05:45 PM
Braided mash manifold versus a false bottom galacticbrewing12 Equipment/Sanitation 8 10-25-2012 06:09 PM
Issue with false bottom in MLT on first use - should I switch to braided hose? Rev2010 Equipment/Sanitation 4 11-01-2011 12:15 AM
Max Efficiency: Braided hose vs. copper manifold? Zeppman All Grain & Partial Mash Brewing 18 07-18-2010 01:51 AM
False bottom vs. hose braid McCall St. Brewer All Grain & Partial Mash Brewing 4 02-03-2007 09:32 PM



Newest Threads

LATEST SPONSOR DEALS