How do you batch sparge without disturbing the grain bed? - Home Brew Forums
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Old 06-29-2009, 04:44 AM   #1
Aug 2008
Posts: 225

and if you fly sparge how do you mash out? do you nee to mash over a burner? I only have coolers right now...

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Old 06-29-2009, 05:46 AM   #2
IXVolt's Avatar
Apr 2009
Southern Oregon
Posts: 1,715
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I batch sparge, and when I'm putting the first vourlauf (sp?) back in the batch, which is where I think you are referring to "disturbing the grain bed", I put a piece of tin foil over the grain and pour the wort back on top. That way the grain bed isn't disturbed for the rest of the draining.

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Old 06-29-2009, 06:06 AM   #3
Yuri_Rage's Avatar
Jul 2006
Posts: 14,299
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If you batch sparge, you intentionally disturb the grain bed by stirring the sparge water into the mash. You then need to wait a few minutes and vorlauf until the runnings are clear again.

You can mash out with any of the following techniques:

Direct heat the mash until it's 170 F or greater (not possible with a cooler mash tun unless you use steam).

Decoct a calculated portion of the mash and add it back to affect an overall temp of 170 F or greater.

Add a calculated amount of very hot water to the mash, thus thinning it, but increasing the temp to 170 F or greater.

Fly sparge with 170-180 F sparge water (my preferred technique).
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Old 06-29-2009, 11:54 AM   #4
houndhome1's Avatar
Aug 2007
Posts: 101

I use a cooler aslo. This is how I do it. After an hour of letting the grain mash (all grain brewing). I then add 1-1/1/2 gals of boiling water. then let it set for 5-10 minutes. I then start a slow dain. On the side I have a pot of boiled water. I then add 2 quarts at a time, just to keep the grain bed covered. I continue this method until I reach my pre-boil mark. I aslo have a low flame on my brewing pot while it's filling. Heres a pic
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