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Old 12-02-2010, 07:51 AM   #1
walther
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Default Mash filtering, why exactly ?

Hi,

Is it necessary to use your mash as a filter for clearing the beer ?

There is usually lots sediment after first fermentation, will a little extra make a difference ?

Has it something to with taste, and you do not want it in the beer for too long or something ?

Cheers,
Walther

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Old 12-02-2010, 08:38 AM   #2
bigolbigbelly
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I have read that to much grain matter in the boil can release harsh tannins. I have many times forgotten to vorlauf and ended up with much more sediment with no effect on the taste. The only effect I think more sediment could have is trapping some of the yeast under it, which could effect fermentation, but it is doubtful.

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Old 12-02-2010, 01:56 PM   #3
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This is one of those 5% factors. Everything else we do in brewing is so much more important than having clear runoff, but theory tells us that it will make slightly better beer... baaaaarely better.

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Old 12-02-2010, 01:58 PM   #4
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The only reason to use the grain bed to filter the mash is to keep the chunks of husks and grain out. If you use a grain bag or other filtering methods, you don't have to worry about the runnings through the grain bed.

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Old 12-02-2010, 03:15 PM   #5
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Thank you all,

Useful information as always

Cheers,
walther

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