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Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > noticing white spots on top of beer
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Old 09-26-2012, 01:50 PM   #11
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Quote:
Originally Posted by bottlebomber View Post
Guys, Co2 doesn't look like anything. It's a gas, remember? It's either mold, or yeast. Since you transferred I'm guessing the first one. Rack and bottle ASAP.

you can see the white co2 bubbles , so co2 does look like something


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Old 09-26-2012, 02:07 PM   #12
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here is a pic


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Old 09-26-2012, 02:10 PM   #13
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Quote:
Originally Posted by justin2001fox

you can see the white co2 bubbles , so co2 does look like something
Really, are they white? Or just clear. What would make then white in your opinion?
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here is a pic
That's a nice pellicle growth there
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Old 09-26-2012, 02:11 PM   #14
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ok they are clear, but you can still see them
so co2 does look like something
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Old 09-26-2012, 02:20 PM   #15
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Looks like fermentation as usual to me. Yeast rafts, I think they are called. They will probably be floating around until you bottle/keg.

On the very off chance it is mold, it will grow and you will be able to tell.
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Old 09-26-2012, 02:27 PM   #16
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I've gotten that to ? I just watched it and then bottled, no effect on brew.
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Old 09-26-2012, 02:35 PM   #17
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That doesn't look like pellicle at all. Check the pellicle thread for comparison.

It looks like your carboy got slightly wiggled and the residual CO2 is floating to the top. RDWHAHB.
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Old 09-26-2012, 02:53 PM   #18
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Originally Posted by bottlebomber View Post
Really, are they white? Or just clear. What would make then white in your opinion?

That's a nice pellicle growth there
I don't see the pellicle (your cell phone lens could use a microcloth), but I do very much agree with Bottle Bomber that it's mold. I think the various "do I have an infection" threads are starting to condition responses around here such that every concern gets dismissed as yeast rafts.

I've seen that mold myself in a couple of beers. I just racked from underneath it and left an undisturbed top layer so as not to get the mold in my keg.
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Old 09-26-2012, 03:39 PM   #19
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If this were a primary I would say it looked like yeast. But it's very unusually to have the yeast drop, transfer to a secondary and then see something like this.

As far a Co2 bubbles, nope you still can't see the Co2. You can see the beer which gas has caused to bubble. Co2 is not visible to human eyes.
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Old 09-26-2012, 03:47 PM   #20
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Guys, it's yeast rafts. Rising co2 carries yeast from the bottom to the top where it floats. The surface of our beers is rarely ever perfectly clean.


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