Ss Brewtech’s Biggest Baddest Holiday Giveaway Ever!

Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > What WAS this?
Thread Tools
Old 10-01-2012, 05:10 PM   #1
Feedback Score: 1 reviews
Join Date: Oct 2009
Location: Ottawa, Ontario, Canada
Posts: 4,300
Liked 1434 Times on 890 Posts
Likes Given: 1284

Default What WAS this?

I should have taken a picture, but I'll do my best to describe it.

2 weeks ago, I started a Munton's Pale Ale extract kit. Everything went perfectly normally, and I put it in my white plastic pail primary fermenter and set the lid on (not sealed) with a phone book on top to hold it down, but allow CO2 to escape.

Yesterday, I transferred it to secondary. The weird thing is, when I took the lid off, expecting to see clear beer with maybe a little krausen remnants around the edge, instead the entire surface of the beer was covered with what looked like yeast! What WAS that?

There was no bubbling, and it's been 2 weeks, so I was fairly certain fermentation was complete. I took an S.G. reading anyway, and it came out at 1.010. It didn't look "scummy," it really just looked like a uniform layer of yeast, about 1/4" thick. Is it possible it was yeast? Would yeast ever just settle on top like that? I used Safale US-05 yeast, and fermentation was at around 70 F.

I tasted the sample I took for S.G. measurement, and it tasted fine - I'm just curious what I was looking at, since I've never seen that happen before.

Any guesses?

kombat is offline
Reply With Quote
Old 10-01-2012, 05:21 PM   #2
Feedback Score: 0 reviews
Join Date: Feb 2011
Location: Yorba Linda, CA
Posts: 902
Liked 39 Times on 32 Posts
Likes Given: 2


It was probably just that, a layer of yeast or krausen that hadn't settled yet. You could always cold crash if you see that again to try to get it to settle, or just rack from below it which I'm assuming you did. I don't think you have anything to worry about though.

BryceL is offline
Reply With Quote
Old 10-01-2012, 05:24 PM   #3
Feedback Score: 0 reviews
Join Date: Jan 2012
Location: Belgrade, MT
Posts: 256
Liked 14 Times on 10 Posts
Likes Given: 12


Sounds like yeast. I've had yeast floating on top/krausen that seemed to do everything it could to avoid sinking to the bottom. My method of dealing with it is to cold crash until it finally sinks. Adding gelatin (that's been dissolved in a little bit of water) may also help the yeast flocculate (clump up) and then precipitate to the bottom.
BuddyWeiser is offline
Reply With Quote
Old 10-01-2012, 05:26 PM   #4
struggling author
Feedback Score: 0 reviews
unionrdr's Avatar
Join Date: Feb 2011
Location: Sheffield, Ohio
Posts: 36,551
Liked 3246 Times on 2805 Posts
Likes Given: 2360


It's just yeast rafts,"floaters". You're fine.
My sci-fi & home brewing books on amazon-kindle now! New additions coming!
NEW, REVISED EDITION of book one of Time Lords 2034 series now on Amazon Kindle!
My homebrewing book "Tippy Tippy Tappy" on Kindle!
unionrdr is online now
Reply With Quote

Thread Tools

Forum Jump

Newest Threads