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View Poll Results: Do you cover your carboy?
Yes. Religiously. 80 63.49%
Sometimes, if the recipe indicates it. 14 11.11%
Nevar. Let sleeping dogs lie. 32 25.40%
Voters: 126. You may not vote on this poll

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Old 10-08-2009, 07:39 AM   #1
Flocculation Nation
scrambledegg81's Avatar
Sep 2009
Los Osos, CA
Posts: 1,816
Liked 40 Times on 36 Posts

So there's no real consensus that I've found here so far...

I've yet to cover mine, and after 5 batches, I haven't really noticed the supposed "off-flavors" that light vs. hops can sometimes produce. So what's the story, eh?
Primary: nada
Secondary: emptyness
Bottled/Fridge: Sierra Nevada Celebration
Bombers/Growlers/Aging: The Abyss, Firestone 19th Anniversary Ale
Kegerator: sanitizer!
Coming Up: something spiffy, most likely

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Old 10-08-2009, 07:47 AM   #2
Oct 2009
Posts: 6

I have a large closet where I keep my carboy and fermentation buckets, so since it's always dark in there, I have never covered the carboy and haven't had any problems as of yet.

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Old 10-08-2009, 10:07 AM   #3
AnOldUR's Avatar
Mar 2007
, New Jersey
Posts: 6,888
Liked 848 Times on 612 Posts

My mini-fridge fermenator only holds one carboy. A carboy will go in there during the early (heat producing) stages uncovered. Then (to free the fermenator up for the next batch) they come out and I dress them in layers to try to hold a steady temperature (day to night fluctuations.)

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Old 10-08-2009, 12:14 PM   #4
Senior Member
Hammy71's Avatar
Sep 2008
, Maryland, The Tax Me State
Posts: 5,906
Liked 534 Times on 407 Posts

Well..I put sometimes only because I think most of us won't fit perfectly into the 3 options. When my brews are in the ferm-chamber... I don't cover, (not alot of light gets into a fridge....). But when the brews are out of the fridge, (usually to make room for another brew or to secondary in the 'man room'), I cover them always. Hell, even when I rack to secondary, keg, bottling bucket, what ever, I cover them with a shirt. Everything I've read, rather on this site or in books, have stated that light exposure to beer is bad. Thats why beer has been put in brown/green bottles for as long as beer has been bottled. So to say there is no consensus..... I think 99% of people cover their carboys when there is light exposure to worry about. Dark but lighted room like the pic posted above...a no brainer.

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Old 10-08-2009, 12:20 PM   #5
Ale's What Cures You!
Yooper's Avatar
Jun 2006
UP of Michigan, Winter Texan
Posts: 69,885
Liked 8090 Times on 5646 Posts

I have a pretty dark room for my carboys, but I still throw a towel over them. Why not? It's easy, and helps insulate the carboy in case of an overnight temperature drop. All of my wines are always protected from light that way, and I started doing that with my beer, too.
Broken Leg Brewery
Giving beer a leg to stand on since 2006

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Old 10-08-2009, 12:37 PM   #6
Edcculus's Avatar
Jun 2007
Greenville, SC
Posts: 4,546
Liked 50 Times on 46 Posts

I put no. I've gone back to buckets, so this isn't a problem. I also ferment in a fermentation chamber that is dark. So no, I don't make an effort to cover my vessels, although no light gets to them.

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Old 10-08-2009, 12:41 PM   #7
Brew-boy's Avatar
May 2006
Lapeer, Michigan
Posts: 2,280
Liked 16 Times on 13 Posts

My mom sews like crazy so you made me custom carboys covers and covers for my one gallon jugs. I do not want any light getting in there, so far so good.
Next:Smoked Pilsner.
Primary:Belgian Red, American Stout w/Roeselare
On Tap:Pale Ale, English Bitter
Aging: Imperial Oatmeal Stout on Vanilla beans.

I rather owe you a dollar than cheat you out of it.."Dad"

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Old 10-08-2009, 12:45 PM   #8
Sep 2008
Portland, ME
Posts: 94
Liked 1 Times on 1 Posts

I figure a towel is cheap insurance. Also, much of the time I'm running a swamp cooler so the towel is wet and helping keep the temps down.
Primary: Dubbel
Secondary: Foreign Extra Stout, Cider
Bottles: Nada
Kegs: Bailey's Porch House APA, Winter Wheat (Dunkelweizen), Copper Ale (alt)
On Deck: Bailey's Porch House APA, Vesper Red Rye, Robust Porter

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Old 10-08-2009, 01:03 PM   #9

I ferment in the basement, which gets very little ambient light - so I've never had need to cover the vessels (carboy, bucket or BB).

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Old 10-08-2009, 02:33 PM   #10
ibrewit's Avatar
Oct 2007
North Aurora, IL
Posts: 198

I cover the carboy when I ferment in the kitchen as it is exposed to various light sources. I do not cover when I ferment in the basement as there is very little light down there.

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