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-   -   Farmhouse Blend WLP670 yeast- pellicile at bottling (http://www.homebrewtalk.com/f163/farmhouse-blend-wlp670-yeast-pellicile-bottling-268462/)

mewithstewpid 09-13-2011 03:44 PM

Farmhouse Blend WLP670 yeast- pellicile at bottling
 
hello,
I brewed a petite saison with WLP 670 farmhouse blend.
Everything looked great, and after about 2 month in fermentor i bottled last monday. Fermentation was great- 1.035 to 1.003.

This yeast blend is supposed to have some brett, although it was undetermined (i believe) how much was in it. No pellicle formed during fermentation. However, i noticed today that there were some chunks at the top of the bottles, which i thought were yeast rafts, as they fell to the bottom when broken up by shaking. But then i looked at my half-filled tap-a-draft dispenser and noticed 3 "bubbles" typical of pellicle formation.

Anyone use this yeast and have a similar situation? Any suggestions?

Rich

tasq 09-13-2011 06:13 PM

How long did the beer sit before bottling?

pericles 09-13-2011 08:06 PM

All the Russian River beers form pellicles in the bottle. I'm a little concerned that you say you DIDN'T get one in the fermenter. . . but hey, if it was in a low-oxygen environment, that might be why.

mewithstewpid 09-13-2011 08:25 PM

Quote:

Originally Posted by tasq (Post 3252588)
How long did the beer sit before bottling?

i left it in primary for a little under 2 months, say 1.5 months.

mewithstewpid 09-13-2011 08:26 PM

Quote:

Originally Posted by pericles (Post 3252987)
All the Russian River beers form pellicles in the bottle. I'm a little concerned that you say you DIDN'T get one in the fermenter. . . but hey, if it was in a low-oxygen environment, that might be why.

interesting. I never popped open the airlock until i took a hydro reading 3 days prior to bottling.

mewithstewpid 09-14-2011 08:03 PM

anyone else with the farmhouse blend?

BoogieBrandBooze 09-14-2011 08:17 PM

I used it but didn't allow time for the brett to do anything (kegged after a couple of weeks). I did, however, set aside a gallon in a jug when kegging to see where else this blend would go. So far, I haven't seen a pellicle though there is not much surface area for one to form. I haven't taken a reading or taste sample either since my plan is to let this go for at least another 3 months. Sampling from a one gallon batch too often will soon leave me with nothing!

I did, however, really like the 4 gallons of saison (or American Farmhouse Ale, whatever you choose to call it) that I kegged early. I'm not very good with beer descriptors but the best I can conjure at the moment is it was elegant and graceful...if that makes any sense...

AmandaK 09-14-2011 08:23 PM

Here's a logical explanation of why this is happening.

1) Brettanomyces forms a pellicle in the presence of oxygen.

2) You used a blend, meaning that the more dominant strain of yeast was sacc., not brett. In doing so, the sacc. got a hold of the wort first and dominated CO2 production in your primary. As such, there was no O2 to cause a pellicle to form.

3) You bottled. And no doubt got some O2 pickup in the process. Now, all of the sudden, your brett is around oxygen. So, BOOM! It forms a pellicle in the bottle.

And Boogie, you'll be less likely to see a pellicle in the keg (if you even open it up) if you purged with CO2 and didn't allow the beer contact with O2.

bh10 09-14-2011 08:23 PM

Got one fermenting now, been in the primary about 4 weeks no pellicile yet. I spoke with John Carrol from WL at Great Taste of the Midwest, and he really didnt know much about it from what it seemed. But Ill let you know what comes of my beer.

BoogieBrandBooze 09-14-2011 08:32 PM

Quote:

Originally Posted by Braufguss (Post 3256734)
And Boogie, you'll be less likely to see a pellicle in the keg (if you even open it up) if you purged with CO2 and didn't allow the beer contact with O2.

Thanks Braufguss. I actually had no intention of even checking the keg since I intentionally didn't allow time for the brett to do anything. I wasn't expecting any brett character at all in that portion of the batch. It's the gallon I put aside in a jug that I was referring to. No pellicle last time I checked, but the headspace and the surface area of the beer are so small if I get one it won't be much of one.


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