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Old 07-26-2013, 04:10 AM   #11
Sep 2008
Posts: 2,043
Liked 173 Times on 130 Posts

You could of also tried washing the yeast with chlorine dioxide. Cheap insurance
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Old 07-26-2013, 04:48 AM   #12
Jul 2013
Posts: 5

If its smell, taste fine then it is good giving to another.

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Old 07-27-2013, 04:15 PM   #13
Feb 2013
Atlanta, GA
Posts: 60
Liked 3 Times on 3 Posts

Originally Posted by Cyclman
I would have let it finish, just out of curiosity to see what happened. If the starter finished and the beer from it tasted clean, it might have been just fine. Or, it might have been nasty vinegar bug juice.

But for a few bucks of yeast, no big loss to start over, compared to the risk of a ruined batch.
Yeah I thought about throwing the yeast in anyways to see if any bugs that got in would actually make a difference. This was for a westvleteren 12 clone though so I didn't want to waste 3 months of patience for a vinegar quad

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Old 07-27-2013, 04:39 PM   #14
Jan 2013
Inland Empire, CA
Posts: 723
Liked 91 Times on 78 Posts

+1 on tossing it. You can half ass your brewing by pitching a possibly infected starter, or you can strive to make the best beer possible with proper sanitization. You opted for making the best beer possible. Good call.

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Old 07-27-2013, 08:03 PM   #15
Jul 2010
Albany, NY
Posts: 2,250
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I'd bet those foam stopper could keep the bugs out.

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Old 05-17-2014, 05:36 PM   #16
Nov 2008
Santa Barbara, CA
Posts: 233
Liked 27 Times on 20 Posts

I recently had the same experience with a starter of 3711 and I decided to pitch the starter anyway. The beer turned out great with no signs of infection. Just wanted to give a positive experience from someone who had gone the opposite route. (I know 5 gallons is a lot to risk on a questionable starter, but sometimes it's intresting to roll the dice and see what becomes of it.)

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Old 09-29-2015, 07:33 PM   #17
Jun 2014
Posts: 10
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Ah..I wish I had read this before pitching. Same here, found a fruit fly floating in my starter just as I was about to pitch. Serves me right for putting my stir plate next to the peaches and bananas. It was 11pm on a double batch day, so I probably was in a rush. I plucked the bugger out and dumped in the slurry. Fermation took off in a few hours, so I guess I'll know in 3 weeks if I've got some Goose Island Malt Vinegar or not.

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Old 09-29-2015, 07:41 PM   #18
Gavin C
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Jul 2014
Dallas, TX
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Hopefully the fly wasn't a heavily pregnant female.

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Old 09-29-2015, 08:31 PM   #19
Dog House Brew
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Jun 2008
Posts: 1,040
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I had this problem with a Kolsch a few months ago. I tossed it but learned a lesson. I now just unroll a section of paper towel and rubber band it over the neck of my flasks. I then put some foil loosely over that. The starter can breath, but those little bastids are locked out. I had nothing to pitch other than S-04. I just passed on the brew day.
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Old 09-29-2015, 09:58 PM   #20
The Official Not-Norwegian
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Nov 2014
Sandnes, Norway
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I would say good job on throwing it out. I agree with those that go for the "best possible end-product" route. It's one thing if this is one of the quick-turnaround styles, but a completely different story if you're long-term aging it. I just can't imagine a Westvinegar 12 tasting very pleasant.
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