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-   -   Vorlauf: How clear is clear? (http://www.homebrewtalk.com/f36/vorlauf-how-clear-clear-30672/)

mozicodo 05-29-2007 01:48 AM

Vorlauf: How clear is clear?
 
I just did my first batch sparge last night which included hitting the temps within 1 degree but an abysmal 58% efficiency. The night also included one mamma-jamma boilover.

My question is regarding vorlauf. I recirculated about 1 gallon and it did not appear to be any more clear than when I first started the vorlauf. There were no chunks of malt floating in it or anything, but it was definitely cloudy. This was a high-gravity beer, with 19.5# of grain if that matters.

How clear should the vorlauf be?

bradsul 05-29-2007 01:56 AM

You had it right, 'clear' means not chunky. As soon as you get consistent run off with little to no grain matter you're good to go. I usually have to do 4-5L (1L at a time) before I'm ready to start running off.

Edit: I should mention, before you start your vorlauf, give the mash a good stir. This gets as much sugar as possible into solution and also helps to evenly distribute the grains; then let it sit for 5-10 minutes. The grain will naturally settle pretty evenly on the bottom and create a filter-bed much more easily.

Yuri_Rage 05-29-2007 02:26 AM

I can usually get mine to run pretty clear (sometimes clearer than the end product, oddly enough). I wouldn't sweat it if it's a little hazy, but you definitely want to avoid any solid husk/starch matter.

RichBrewer 05-29-2007 02:36 AM

I vourlof until I don't see any more pieces coming through. The wort clears a bit by then but it is still slightly cloudy. I fly sparge and I'd say I recirculate about 1 1/2 gallons.

ajf 05-29-2007 03:24 AM

Like RichBrewer, I vorlauf untill I get no solids in the runnings. For me, this is usually about 3 quarts.

-a.

Willie3 05-29-2007 12:37 PM

I do about three quartstoo , anything more to me is just a waste of time, but again it depends on your system. Like everyone else said "as long as there are no major chunks you should be good to go."

- WW

mozicodo 05-29-2007 01:08 PM

I do think I forgot to stir things up before doing the vorlauf. I know I forgot to stir the second runnings. That probably has something to do with my low efficiency.

KopyKat 05-29-2007 01:51 PM

Three quarts here also. Sometimes two.


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