Giving it a good stir? - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Giving it a good stir?

Reply
 
Thread Tools
Old 04-04-2009, 11:25 PM   #1
telebrewer
Recipes 
 
Sep 2007
Planet Neptune / San Diego
Posts: 155



My first attempt at AG I stirred my mash too much and had a stuck mash. Lost it all and started over. People here have been saying to give your mash a good stir when batch sparging. Won't that mess up the grain bed and possibly get your run off stuck? By the way, I use a false bottom that I'm sure lifts up a bit if stirred too hard. Any thoughts?

 
Reply With Quote
Old 04-04-2009, 11:38 PM   #2
Malticulous
 
Malticulous's Avatar
Recipes 
 
Aug 2008
St. George Utah
Posts: 4,143
Liked 72 Times on 57 Posts


No, with a batch sparge you must stir and vorlauf again. With a suck sparge you can stir and vorlauf to get it going again as well.
__________________
Everything is better with a beer.

 
Reply With Quote
Old 04-04-2009, 11:41 PM   #3
RICLARK
 
RICLARK's Avatar
Recipes 
 
Nov 2007
Grand Ledge, Mich
Posts: 2,534
Liked 12 Times on 10 Posts


Quote:
Originally Posted by dezul313 View Post
My first attempt at AG I stirred my mash too much and had a stuck mash. Lost it all and started over. People here have been saying to give your mash a good stir when batch sparging. Won't that mess up the grain bed and possibly get your run off stuck? By the way, I use a false bottom that I'm sure lifts up a bit if stirred too hard. Any thoughts?
Check this out.

Quote:
Originally Posted by Coastarine View Post
We just had a near catastrophe. As I was stirring in my second infusion I noticed my steel braid swimming around freely in the mash. The solution was easy enough though, at the end of the sacc rest I dumped the entire mash into my bottling bucket, fixed the braid back onto the hose barb, and dumped the whole mash back into the MLT. A little extra vorlauf and we're right back on track. I don't really believe in HSA anyway; I use a drill/paint stirrer to stir my mash.
__________________
OUTLAW ALES

Kegged/Bottled: Boston Lager Clone, Crimson Ale, Guiness Draught Clone, Kilt Warmer Scotch Ale, BBB Blonde Ale, Oberon Clone Pt. 1,000

Do I Look Like A Man.....With A Plan??

Local Home Brew Store

www.theredsalamander.com

 
Reply With Quote
Old 04-04-2009, 11:48 PM   #4
Malticulous
 
Malticulous's Avatar
Recipes 
 
Aug 2008
St. George Utah
Posts: 4,143
Liked 72 Times on 57 Posts


With a false bottom the vorlauf should do the trick. A braid would on the other hand would end up with some serious dead space if it's not down on the bottom (glue?)
__________________
Everything is better with a beer.

 
Reply With Quote
Old 04-04-2009, 11:51 PM   #5
RICLARK
 
RICLARK's Avatar
Recipes 
 
Nov 2007
Grand Ledge, Mich
Posts: 2,534
Liked 12 Times on 10 Posts


Quote:
Originally Posted by Conroe View Post
With a false bottom the vorlauf should do the trick. A braid would on the other hand would end up with some serious dead space if it's not down on the bottom (glue?)
Vourlofing won't work if nothing is coming out.
__________________
OUTLAW ALES

Kegged/Bottled: Boston Lager Clone, Crimson Ale, Guiness Draught Clone, Kilt Warmer Scotch Ale, BBB Blonde Ale, Oberon Clone Pt. 1,000

Do I Look Like A Man.....With A Plan??

Local Home Brew Store

www.theredsalamander.com

 
Reply With Quote
Old 04-05-2009, 12:13 AM   #6
Malticulous
 
Malticulous's Avatar
Recipes 
 
Aug 2008
St. George Utah
Posts: 4,143
Liked 72 Times on 57 Posts


But with a good stir it will. Believe me I know. I just mashed with with 42% unmalted wheat (and a false bottom.)
Quote:
Originally Posted by Conroe View Post
With a suck sparge you can stir and vorlauf to get it going again.
The mash can get too compacted and stop the flow. Rice hulls could help. I haven't used them. A stir will loosen it up then another vorlauf will be necessary.
__________________
Everything is better with a beer.


 
Reply With Quote
Old 04-05-2009, 01:55 AM   #7
FishinDave07
Recipes 
 
Oct 2007
South Florida
Posts: 1,364
Liked 2 Times on 2 Posts


Quote:
Originally Posted by dezul313 View Post
People here have been saying to give your mash a good stir when batch sparging.

Are you stirring WHILE you sparge/runoff? That can almost guarantee a stuck sparge. My way of doing it is:

1. Add sparge water
2. Mix well for about a minute
3. Slowly open the valve and begin the vorlauf
4. After your wort runs clear, open the valve to full and into the kettle
__________________
Primary: Nothing
Secondary: DFH Punkin Ale
Bottled/Conditioning: Cigar City Jai Alai IPA Clone, Apple Jack 1.0, Apple Jack 2.0
Drinking: Yakima Blonde (Imperialized), Banana Wheat, Russian Imperial Stout, and anything i can get my hands on
On Deck: Watermelon Wheat, Red Panda Ale, Gluten Free Brown Ale, Mojito IPA, Smoked Pepper Stout

 
Reply With Quote
Old 04-05-2009, 02:29 AM   #8
Jolly McStanson
Recipes 
 
Jan 2008
Newport RI
Posts: 232
Liked 1 Times on 1 Posts


Quote:
Originally Posted by Conroe View Post
With a false bottom the vorlauf should do the trick. A braid would on the other hand would end up with some serious dead space if it's not down on the bottom (glue?)
No matter where the braid is, it doesn't affect the dead space. All the fluid will drain out the outlet.. until it reaches the outlet level.
__________________
Ingredients waiting to be brewed: nothing
Primary:
Kegged: half of something from last Spring
Kegged: half of something from last Spring
Kegged: half of something from last Spring

 
Reply With Quote
Old 04-05-2009, 02:31 AM   #9
ajf
Senior Member
HBT_LIFETIMESUPPORTER.png
 
ajf's Avatar
Recipes 
 
Oct 2005
Long Island
Posts: 4,646
Liked 105 Times on 99 Posts


Is your false bottom the right size? It should cover just about all of the bottom of the MLT, leaving just a very narrow band (about 1/4 ") around the perimeter. If it is too small, it will be easy to get grain underneath.
Is it plastic? If so, it is quite easy to get grain underneath. The following procedure helps to overcome this:
1. Use a good stiff tube to connect the false bottom to the MLT outlet. I use copper pipe connected at either end by a short length of braided tube. This helps to keep the bottom in position.
2. Before adding any grain to the MLT add a sufficient foundation of strike water so that the outlet tube is completely submerged. Then draw off a small amount of water to flood the outlet. This prevents air in the outlet from trying to float the bottom.
3. Don't stir too vigorously. If you catch the outlet, you can lift the bottom, and get grain underneath. Stirring a bit more gently for a bit longer works just as well.
4. Alternate between adding small amounts of strike water and malt, making sure that the malt is always suspended by the water, ensuring that the grain is thoroughly wetted after each addition before adding any more grain. This prevents the weight of unsupported grain from plugging the holes in the bottom.
Finally, if you do get a stuck sparge, you can always ladle the entire mash into your kettle or a bucket, clean out the obstruction, reassemble, and ladle it back again. It's a PITA, but still better than dumping a brew.

-a.

 
Reply With Quote
Old 04-05-2009, 02:33 AM   #10
Malticulous
 
Malticulous's Avatar
Recipes 
 
Aug 2008
St. George Utah
Posts: 4,143
Liked 72 Times on 57 Posts


Quote:
Originally Posted by Jolly McStanson View Post
No matter where the braid is, it doesn't affect the dead space. All the fluid will drain out the outlet.. until it reaches the outlet level.
Good point. There is no siphon, just a drain at the outlet. That also suggests that a long braid is of little use and a small screen over the drain hole would do pretty much the same thing. Dip tube FTW. I also use a heat molded pex line in my large cooler (for bigger batches of proven recipes) that has holes drilled in the bottom of it. It siphons nearly everything out of the my MLT and is somewhat immovable (every bit as much as a false bottom is.)
__________________
Everything is better with a beer.


 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
To Stir or Not To Stir : Mash Technique Question mmb General Techniques 19 03-02-2009 06:48 PM
Pouring in Priming sugar in and giving a good stir, good enough? StrictlyIPAs Beginners Beer Brewing Forum 5 09-15-2008 11:16 PM
Anybody have a good DIY Stir Bar Tek? dubbel dutch Chillers & Stir Plates 9 04-02-2008 08:53 PM
Ever feel close to giving up?? OR Has your beer always been good?? Rook General Beer Discussion 27 06-25-2007 08:40 PM


Forum Jump