American Coolship Ales

Steven P · Post by **Steven P** » Tue May 01, 2012 9:31 am

http://www.plosone.org/article/info%3Ad ... ne.0035507

Recent scientific report on American Coolship Ales (wilds/sours) and how they spontaneously ferment similarly to Belgian Lambics. I plucked this link from the Mad Fermentationist blog.

They don't mention the brewery(s) that contributed their products for testing but I suspect the "independent craft brewery located in the Northeastern United States" to be Allagash (edit).

I expect any brewery in sufficient proximity to well established fruit orchards should be able to replicate the spontaneous fermentation process. I for one hope this report sparks a few new experimental breweries.

Matt F · Post by **Matt F** » Tue May 01, 2012 12:04 pm

Steven P wrote:I expect any brewery in sufficient proximity to well established fruit orchards should be able to replicate the spontaneous fermentation process. I for one hope this report sparks a few new experimental breweries.

Lee, this sounds like you are in the right spot to give it a shot.

DrPaulsen · Post by **DrPaulsen** » Tue May 01, 2012 12:14 pm

Matt F wrote:Lee, this sounds like you are in the right spot to give it a shot.

Now that's an interesting idea. The trick would be keeping out the fruit flies, but letting in the bugs. Maybe it could be done with something like a 50 or 100 micron filter screen sheet clamped over the fermenter.

Steven P · Post by **Steven P** » Tue May 01, 2012 12:16 pm

How about a door screen? That's what they are for after all.

I love how you went straight to a micron filter.

Matt F · Post by **Matt F** » Tue May 01, 2012 12:36 pm

Those fruit flies will crawl right through a door screen. You may need the filters. Something that would work good are the mesh bags for paint with an elastic band around the top. I use to put those around the top of 5 gallon paint buckets to filter out the chunks when I painted parking lot stripes in college.

DrPaulsen · Post by **DrPaulsen** » Tue May 01, 2012 12:37 pm

I haven't found door screens to be particularly effective against fruit flies. Coincidentally, I was looking at filter media sheets earlier today. Very fine screens can be had surprisingly inexpensively.

http://www.dudadiesel.com/search.php?qu ... r+%2Bsheet

brownbeard · Post by **brownbeard** » Tue May 01, 2012 12:47 pm

I hate fruit flies.

Steven P · Post by **Steven P** » Tue May 01, 2012 12:50 pm

I wonder how the commercial breweries do this? Just filter the peripheral insect life out of the wort in the coolship on the way into the fermenter?

Drain from the bottom and leave the nasties on the top?

BrewHound · Post by **BrewHound** » Tue May 01, 2012 8:20 pm

brownbeard wrote:I hate fruit flies.

I hate screen doors.

JimF · Post by **JimF** » Tue May 01, 2012 8:34 pm

I hate screen doors that let in fruit flies.
On May 1, 2012 9:20 PM, "BrewHound" <brew-tech@crbeernuts.org (brew-tech@crbeernuts.org)> wrote:

brownbeard wrote: I hate fruit flies.

I hate screen doors.

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