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Old 09-26-2010, 06:54 PM   #1
jasonsbeer
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Default Infection - Gonna bottle anyway

Looks like I have my first infection. I popped the lid of my double chocolate oatmeal stout and it smelled fruity. I tasted the beer and, quite honestly, it doesn't taste bad at all. Its a touch sour, which maybe isn't a bad characteristic for a stout. Maybe this is some kind of lactic infection? I'm gonna bottle anyhow. Is this a mistake?





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Old 09-26-2010, 07:00 PM   #2
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That's probably not infection. Bottle it and sample in a couple weeks. I'll bet the sourness you are tasting is from the roasted barley.


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Old 09-26-2010, 07:12 PM   #3
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Good to hear. I actually used some pretty old yeast in this one that was resurrected from a bottle of a similar recipe I brewed a year ago. See thread here. So there was a few extra infection opportunities in this one.

I was checking out the infection thread and mine isn't "bubbly" like those infections, but there is definitely a skin and some white floaters. Maybe just remnant of the cocoa...

Added recipe for reference:

Fermentables
================================================== ==============================
Name Type Amount Mashed Late Yield Color
Pale Malt (2 Row) US Grain 7.000 lb Yes No 79% 2 L
Caramel/Crystal Malt - 80L Grain 16.000 oz Yes No 74% 80 L
Chocolate Malt (US) Grain 8.000 oz Yes No 60% 350 L
Roasted Barley Grain 10.000 oz Yes No 55% 300 L
Barley, Flaked Grain 16.000 oz Yes No 70% 2 L
Oats, Flaked Grain 16.000 oz Yes No 80% 1 L
Total grain: 11.125 lb

Hops
================================================== ==============================
Name Alpha Amount Use Time Form IBU
Cascade 5.0% 1.500 oz Boil 1.000 hr Pellet 23.8
Cascade 5.0% 0.500 oz Aroma 5.000 min Pellet 0.0

Misc
================================================== ==============================
Name Type Use Amount Time
Whirlfloc Fining Boil 1.000 tsp 5.000 min
Cocoa Flavor Boil 5.000 oz 10.000 min

Yeast
================================================== ==============================
Name Type Form Amount Stage
White Labs - WLP004 Ale Liquid 1.000 qt Primary
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Old 09-26-2010, 07:13 PM   #4
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Yep. Infection. You can bottle it though be sure the FG is low enough so you don't get bottle bombs. Drink it fast too.
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Old 09-26-2010, 08:47 PM   #5
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i bet 400 years ago they kegged it anyway too!

I had a tripel beer I bottled and it obviously some where it got infected 25 bottles in Belgium bottles w/ corks after a month it tasted like a mushroom grown on a dirty sock!
forgot about the beer left it in a closet 6+ months chilled one and sampled it and it was fantastic! had my wife try a sip and i couldn't get the glass back from her. point being if it isn't good let it age sometimes magic happens!
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Old 09-26-2010, 08:49 PM   #6
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I've had yeast rafts from certain strains of yeast that leave the surface of the beer looking like that. I don't think it is infected either. I think the sourness is co2 and the roasted barley and that you will be fine.
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Old 09-26-2010, 09:14 PM   #7
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Quote:
Originally Posted by rugman View Post
i bet 400 years ago they kegged it anyway too!
HELL YEAH!
Infection or not, this has been bottled.

I wanted to try some different things with this beer. As a Double Chocolate Oatmeal
Stout, this sucker has a lot going already. Not being satisfied with this I have:

put about 1.5 gals over cherries in a secondary to be bottled later
added lactose to 8 bottles for a Double Chocolate Oatmeal Milk Stout
added malto-dextrine to 8 bottles to see how it will affect mouth feel
added both lactose and malto-dextrine to another 8 bottles to see how they do together
bottled 13 straight up

I should have some fun taste testing these combinations in the near future.

Thanks everybody
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Old 09-27-2010, 12:07 AM   #8
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Doesn't look like an infection to me either. I say bottle up and enjoy.


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