1.020 stuck ferment with WLP004 repitch with US04, bad idea?

Discussion in 'General Brewing Discussions' started by Smash café, Oct 13, 2015.

  1. Smash café

    Smash café New Member

    Joined:
    Jan 27, 2015
    Messages:
    27
    Likes Received:
    1
    Trophy Points:
    3
    As the title says; A batch of stout with WLP004 stopped at 1.020. I gave it a good stir, but no avail a week later. instead of ordering a new WLP004 which I have to mail order and pay postage on, I pitched half a packet of US04 that I had on hand.

    Any ideas what to expect from this stout? or any experience of using 2 yeasts strains in 1 batch?
     
  2. Ozarks Mountain Brew

    Staff Member

    Joined:
    Nov 20, 2012
    Messages:
    7,767
    Likes Received:
    3,976
    Trophy Points:
    113
    Gender:
    Male
    Occupation:
    IT Managment
    Location:
    The Ozark Mountains of Missouri
    Re: 1.020 stuck ferment with WLP004 repitch with US04, bad i

    you might want to add some sugar, its very possible the stout with alll the dark grains ran out of fermentables, adding another yeast brand will not hurt anything
     
  3. Nosybear

    Nosybear Well-Known Member

    Joined:
    Jul 16, 2012
    Messages:
    9,377
    Likes Received:
    6,607
    Trophy Points:
    113
    Location:
    Aurora, CO, USA
    Re: 1.020 stuck ferment with WLP004 repitch with US04, bad i

    WLP004 is fairly highly flocculant. Flocculant yeasts generally give malty, thick beers because they fall out of suspension, leaving unfermented sugars behind, and by extension a high FG. I don't know what your OG was but if it was fairly high - say 1.060 or greater, 1.020 isn't out of the question for this yeast. By using a "finishing" yeast, you're actually undoing what the yeast is bred to do, leave sweetness and body in the beer. Using 70% attenuation and a 1.060 wort, your FG should be 1.018 (60-.7*60 in gravity points). Sounds to me like the yeast performed as expected!
     
  4. Smash café

    Smash café New Member

    Joined:
    Jan 27, 2015
    Messages:
    27
    Likes Received:
    1
    Trophy Points:
    3
    Re: 1.020 stuck ferment with WLP004 repitch with US04, bad i

    I've brewed variations on this stout recipe with WLP004 before usually finishing 1.014/15. The og was 1.050

    I do find 1.020 too sweet and thick especially for a Dublin dry stout. anyway. fingers crossed.
     

Share This Page

arrow_white