Fruit flies in starter

Discussion in 'Homebrewing' started by langdonk1, Nov 18, 2014.

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  1. langdonk1

    langdonk1 Initiate (0) May 16, 2014 South Carolina

    Made a yeast starter and while my wort was boiling 3 fruit flies landed inside and died in the boil. I hadn't noticed until after I pitched the yeast in the starter.... what should I do?
     
  2. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    Are you worried about bacteria or fruit fly flavor? The boil took care of the former.
     
  3. HerbMeowing

    HerbMeowing Maven (1,295) Nov 10, 2010 Virginia
    Trader

    Could be the start of a new style: Fruit FlyPA
     
  4. langdonk1

    langdonk1 Initiate (0) May 16, 2014 South Carolina

    I don't think it will contribute to flavor but will it affect the life of the yeast and viability?
     
  5. HerbMeowing

    HerbMeowing Maven (1,295) Nov 10, 2010 Virginia
    Trader

    Hopgrasser: ask yourself why you boil the starter wort in the 1st place.
     
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  6. inchrisin

    inchrisin Pooh-Bah (2,013) Sep 25, 2008 Indiana
    Pooh-Bah

    It it was during the boil and before the pitch, you'll be fine. If it was after you cooled the wort and pitched your yeast, you should dump it out immediately.
     
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  7. AlCaponeJunior

    AlCaponeJunior Grand Pooh-Bah (3,452) May 21, 2010 Texas
    Society Pooh-Bah

    Oh, that's rich :rolling_eyes:

    Since I brew outdoors in Tx in a woody area, there are plenty of bugs and critters hanging around all the time. Most types of common bug have wound up in a batch at one time or another. Spiders, flies, wasps, yellow jackets, honey bees, you name it, they're always hanging out when there's beer to be made, and occasionally one gets crispy trying to grab some free sugary wort. I figure it just gives the beer extra crunchiness. :grimacing:

    I have a specially fabricated lid that goes around the wort chiller to keep them out after the boil is complete.
     
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  8. pweis909

    pweis909 Grand Pooh-Bah (3,250) Aug 13, 2005 Wisconsin
    Pooh-Bah

    You should have nothing to worry about. But best to keep the fruit flies away from your fermenter.
     
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  9. jlordi12

    jlordi12 Pooh-Bah (1,856) Jun 8, 2011 Massachusetts
    Pooh-Bah

    Fruit fly in starter = bad news (had this happen and was straight up vinegar)
    Fruit fly in boil = carry on
     
  10. langdonk1

    langdonk1 Initiate (0) May 16, 2014 South Carolina

    I dumped it unfortunately
     
  11. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    Why?
     
  12. langdonk1

    langdonk1 Initiate (0) May 16, 2014 South Carolina

    It smelled like vinegar. Sour and unhealthy smelling. Im going to try to get some bottles and start again. I felt i mishandled it when transferring from vessel to vessel.
     
  13. NickTheGreat

    NickTheGreat Maven (1,470) Oct 28, 2010 Iowa
    Trader

    You dumped what? I couldn't tell if the fly landed in your wort or your starter?

    I can't imagine you'd get a vinegar smell in the matter of hours.

    Either way, RIP
     
  14. langdonk1

    langdonk1 Initiate (0) May 16, 2014 South Carolina

    In the starter. It was sitting for a week and a half
     
  15. Witherby

    Witherby Crusader (498) Jan 5, 2011 Massachusetts

    Fruit flies carry acetobacter, which converts alcohol into vinegar. Letting them in your starter is a good way to make malt vinegar.
     
  16. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    Unless I misinterpret the OP, they were boiled in the starter wort boil. So it's not very likely that any infection came from them.
     
  17. SaCkErZ9

    SaCkErZ9 Grand Pooh-Bah (3,057) Feb 27, 2005 South Carolina
    Pooh-Bah Trader

    Why was your starter sitting for a week and a half? The point of a starter is to add yeast that is actively fermenting, meaning the starter should be no more than about one day old. I am confused as to what happened here.
     
  18. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    Maybe he cold crashed his starter and it sat in the fridge? Or it was sitting at room temp to clear before decanting the spent wort/beer off? Starters don't have to be pitched while actively fermenting. I crash mine, and I think there are pretty good reasons to do so. (Shouldn't take a week and a half though.)
     
  19. langdonk1

    langdonk1 Initiate (0) May 16, 2014 South Carolina

    Waited 5 days for the bottle dregs to start. Waited another 2 for them to finish. 3 days cold crash. 4 day step up
     
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