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-   -   infected, yeast of brew last, or wild? you judge (http://www.homebrewtalk.com/f163/infected-yeast-brew-last-wild-you-judge-385279/)

expatbrew 01-28-2013 02:27 PM

infected, yeast of brew last, or wild? you judge
 
1 Attachment(s)
Long time stalker, first time poster. Forum is a great help, and wealth of knowledge. Did lots of searching but figured a picture is worth 1000 words.

After a 5 year brewing hiatus in being stuck in China, I'm now in Singapore and back to brewing. This is my 10th or so batch I a year; all grain.

It's hot as he'll here so I brewed this Sunday, immersion chiller, put in my sanitized fermentor and left in the fridge over night to bring down the pitch temp.

Opened the fridge, temp looked good, grabbed my yeast, ready to pitch, opened fermentor and the saw this.

Attachment 97134



Attachment 97134

I've read if it has a krausen than its not bacteria, so I pitched my yeast anyway and hope for the best.

It's a single hopped, simcoe ipa. OG 1.070
Pitched SAF-05

william_shakes_beer 01-28-2013 02:52 PM

When I first looked at the pictures I was preparing to reply " normal healthy ferment" then I read your post and realized that you had not yet pitched the yeast. It looks like spontaneous fermentation. How does it smell? Does it smell nasty? Did you put an airlock on it before you put it in the frige? Who knows, youm may have discovered the great missing Chinese yeast

nhwrecker 01-28-2013 02:55 PM

Quote:

Originally Posted by william_shakes_beer (Post 4835528)
Who knows, youm may have discovered the great missing Chinese yeast

The thing about that Chinese yeast is, 30 minutes after it's done with eating everything in the bucket, it's hungry again.

eastoak 01-28-2013 09:44 PM

you were able to buy simcoe in singapore?

Ostomo517 01-28-2013 09:57 PM

Quote:

Originally Posted by nhwrecker (Post 4835538)

The thing about that Chinese yeast is, 30 minutes after it's done with eating everything in the bucket, it's hungry again.

Bazinga!

expatbrew 01-28-2013 10:04 PM

Yes this is before I pitched my yeast. There was an airlock on the fermentor. I sanitize everything with a spray bottle of sanstar.

I bought a few lbs of hops while in the US, and brought them back.

Not much smell coming off. I'll check again today, and see how it's going.

eastoak 01-28-2013 10:06 PM

you can get a krausen with wild yeast or brettanomyces.

expatbrew 01-28-2013 10:42 PM

1 Attachment(s)
Update; 12 hours after pitching, the saf-05 is starting to grow.

I took a sample which tasted bitter and sweet, no sour or strange flavors. Smell coming off fermentor is sweet and a little tropical fruity.

I have about 4oz of late addition simcoe in this batch, so that should explain the fruity smell.

Last batch in this fermenter was either a us-06 wheat, or pilsner.

Never used Brett, and only drank a few orval in the house way back. so not sure where Brett could have come from, if it is brett.

Attachment 97198

expatbrew 01-29-2013 01:37 PM

No other guesses? Wild yeast the best bet? Any way to test and tell what it actually is.

tripplehazzard 01-29-2013 01:45 PM

Looks like enzymes separating


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