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Vorlauf

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Vorlauf is the process of clarifying the [[wort]] being drawn out of the [[Mash Tun|mash tun]].  Often this is as simple as drawing 1-2L of wort at a time slowly into a container and then pouring softly back onto the top of the mash; taking care to disturb the grain bed as little as possible.
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The primary objective is to establish the grain bed as a filter for the wort being drawn off.  The grain husks will then act as a [http://en.wikipedia.org/wiki/Filtration sand-style filter] to further enhance clarity.
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When the wort runs mostly clear (meaning no large pieces of grain material) the vorlauf process is complete and [[sparging]] may begin.

Revision as of 12:10, 3 April 2007

Vorlauf is the process of clarifying the wort being drawn out of the mash tun. Often this is as simple as drawing 1-2L of wort at a time slowly into a container and then pouring softly back onto the top of the mash; taking care to disturb the grain bed as little as possible.

The primary objective is to establish the grain bed as a filter for the wort being drawn off. The grain husks will then act as a sand-style filter to further enhance clarity.

When the wort runs mostly clear (meaning no large pieces of grain material) the vorlauf process is complete and sparging may begin.