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Fly Sparging

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davidgzach:
Good info Jeff.  How is it that you can get >100%?  What makes up the calcs?

I also can see that if the process is sound, the PH correct and sparge water at the right temps, there is nothing wrong with over 85% efficiency.  I dialed mine back on some advice when I was getting 85%+ every batch, but I do not remember ever getting any astringency.  Sparge on if you like it that way!

I do like my consistent 80% and cutting the brew day down 30+ minutes though.....

Dave

hopfenundmalz:

--- Quote from: davidgzach on January 09, 2013, 11:19:38 AM ---Good info Jeff.  How is it that you can get >100%?  What makes up the calcs?

I also can see that if the process is sound, the PH correct and sparge water at the right temps, there is nothing wrong with over 85% efficiency.  I dialed mine back on some advice when I was getting 85%+ every batch, but I do not remember ever getting any astringency.  Sparge on if you like it that way!

I do like my consistent 80% and cutting the brew day down 30+ minutes though.....

Dave

--- End quote ---

The Congress mash is the referrence. Milled to a fine flour, mashed in distilled water, drained through a filter IIRC, feel free to correct this if you know more.

The hammer mill get it very fine, and the mash press squeezes the mash between the filter plates that give a large area. They get it all out through pressing the mash, so they can exceed the Congress mash.

These are popular in Belgium. I have talked to local brewers that would love to have one, and there is a new place going up that has one ordered for the system.

hubie:
How the heck does one lauter grain that has been hammer milled?  I'm trying to picture a 200 barrel vessel using the brew-in-a-bag method. :)

hopfenundmalz:

--- Quote from: hubie on January 09, 2013, 12:12:24 PM ---How the heck does one lauter grain that has been hammer milled?  I'm trying to picture a 200 barrel vessel using the brew-in-a-bag method. :)

--- End quote ---

It is pressed not lautered. This may help. Squeezed horizontally and the liquid drains out the bottom.
http://appellationbeer.com/balancing-nature-tradition-and-progress-in-alaska/

Here is another brand.
http://www.micronicsinc.com/filter-press-sale2.htm

hubie:

--- Quote from: hopfenundmalz on January 09, 2013, 12:50:07 PM ---
--- Quote from: hubie on January 09, 2013, 12:12:24 PM ---How the heck does one lauter grain that has been hammer milled?  I'm trying to picture a 200 barrel vessel using the brew-in-a-bag method. :)

--- End quote ---

It is pressed not lautered. This may help. Squeezed horizontally and the liquid drains out the bottom.
http://appellationbeer.com/balancing-nature-tradition-and-progress-in-alaska/

Here is another brand.
http://www.micronicsinc.com/filter-press-sale2.htm

--- End quote ---

Excellent article.  Thank you.

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