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Old 11-13-2008, 02:39 AM   #1
plumber
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I had a 20 qt round mlt and just built a 50qt cube mlt. Now that I have the space to do a mash out should I. Just wondering what everyones opinions are. Does it make a difference for anyone? Btw I batch sparge but thinking of trying a fly sesion.

 
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Old 11-13-2008, 02:45 AM   #2
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I don't bother when I batch sparge. You drain and get the wort on the fire so quickly I don't think it's really necessary. When I fly sparge though I always do a mash-out decoction of the thin part. Otherwise you'll get a much more fermentable wort than you may want.
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Reason: first fly sparge should have been batch

 
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Old 11-13-2008, 02:47 AM   #3
ajf
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I mash out when fly sparging. The mash out and using hotter sparge water increased my efficiency by 10%. I don't mash out when batch sparging. I did try it, but my efficiency seemed to drop a bit with the mash out.

-a.

 
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Old 11-13-2008, 03:08 AM   #4
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Quote:
Originally Posted by bradsul View Post
I don't bother when I fly sparge. You drain and get the wort on the fire so quickly I don't think it's really necessary. When I fly sparge though I always do a mash-out decoction of the thin part. Otherwise you'll get a much more fermentable wort than you may want.
what does "mash out decoction" mean ?

 
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Old 11-13-2008, 03:15 AM   #5
Bernie Brewer
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Quote:
Originally Posted by ajf View Post
I mash out when fly sparging. The mash out and using hotter sparge water increased my efficiency by 10%. I don't mash out when batch sparging. I did try it, but my efficiency seemed to drop a bit with the mash out.

-a.

/\ Ditto. What he said.
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Old 11-13-2008, 03:21 AM   #6
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What does "mash out" mean too ?

Usually what I do is just heat up another 3-4 gallons of water ( hotter this time ) and dump it in there and let it drain. Maybe even repeat one more time if I've got a big grain bill and still have room in the kettle.

This may sound stupid, but when you say "mash out" do you mean that you're like taking the mash paddle and squeezing the wort out of the grain or something ?

 
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Old 11-13-2008, 03:46 AM   #7
bradsul
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Quote:
Originally Posted by Mutilated1 View Post
What does "mash out" mean too ?...
Here is what the wiki has to say.

And here is what Palmer has to say.

Both more eloquent than I right now, especially given my 'duh' mistake in my first post.
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Old 11-13-2008, 05:03 AM   #8
plumber
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So when batch sparging it does not seem to make a difference? I guess I can understand for fly sparg so the grain bed is 165-170 at the begining of the sparg.

 
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Old 11-13-2008, 05:28 AM   #9
TexLaw
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Quote:
Originally Posted by Mutilated1 View Post
what does "mash out decoction" mean ?

What does "mash out" mean too ?
"Mash out" is the step when you bring your mash up to a higher temperature (typically 165ish) before lautering. The idea is to increase the solubility of your wort liquor and the viscosity of your wort to aid both efficiency and lautering. Some folks do it; some don't. Reviews are mixed, to say the least, but do what works for you.

A "mash out decoction" is when you decoct to bring your mash to a "mash out" temperature (as opposed to an infusion or direct firing).


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Old 11-13-2008, 06:51 AM   #10
giligson
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I do single or double step infusion mash into a plastic tun.
I don't mash out and I do fly sparge - seems to work for me.

 
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