Do I need more yeast?

Discussion in 'General Brewing Discussions' started by Optimus Prime, Dec 5, 2019.

  1. Optimus Prime

    Optimus Prime New Member

    Joined:
    Dec 4, 2019
    Messages:
    2
    Likes Received:
    1
    Trophy Points:
    3
    Hi. The recipe calculator says my original gravity will be 1.080, final gravity 1.021, ABV 7.8%

    My yeast package (Wyeast 3944) says I may need more yeast for OG 1.060 or higher

    Do I actually need more yeast for a 5 gallon batch? IF I add a second pack of yeast, should I be concerned of undesirable after effects?

    Thank you for your feedback.
     
  2. Mase

    Mase Well-Known Member

    Joined:
    Mar 16, 2017
    Messages:
    1,772
    Likes Received:
    2,116
    Trophy Points:
    113
    Gender:
    Male
    You can build a yeast starter and there’s a yeast starter calculator on this site to help you with that.
     
    thunderwagn likes this.
  3. J A

    J A Well-Known Member

    Joined:
    Jan 19, 2016
    Messages:
    3,474
    Likes Received:
    2,689
    Trophy Points:
    113
    Location:
    Austin, Texas
    Yes and if the yeast is a couple of months old, you might need more than 2 packets or a big starter. Use the pitch calculator on the recipe calculator. The good thing about most ale yeasts is that even underpitched, they'll make beer.
     
  4. Nosybear

    Nosybear Well-Known Member

    Joined:
    Jul 16, 2012
    Messages:
    9,394
    Likes Received:
    6,634
    Trophy Points:
    113
    Location:
    Aurora, CO, USA
    Not absolutely, a single pitch of yeast will eventually ferment the wort. A second pack or a starter will improve your beer. There's a calculator on the site that will help you estimate how much yeast you need and how to get to that amount.
     
  5. Trialben

    Trialben Well-Known Member

    Joined:
    Mar 30, 2016
    Messages:
    9,437
    Likes Received:
    9,502
    Trophy Points:
    113
    Gender:
    Male
    Occupation:
    Pest control tech
    Location:
    Palmwoods QLD
    Nothing wrong with more yeast in a big beer I say.
     
    Mase and Head First like this.
  6. Trialben

    Trialben Well-Known Member

    Joined:
    Mar 30, 2016
    Messages:
    9,437
    Likes Received:
    9,502
    Trophy Points:
    113
    Gender:
    Male
    Occupation:
    Pest control tech
    Location:
    Palmwoods QLD
    Last pour of Leah's beer for the year nice super lite crushable ale.
    20191205_183550.jpg
    Now but mear foam now I've only one beer on tap:eek:. Gotta get brewing.... 20191205_183531.jpg
     
    Megary, Group W, Craigerrr and 4 others like this.
  7. Mase

    Mase Well-Known Member

    Joined:
    Mar 16, 2017
    Messages:
    1,772
    Likes Received:
    2,116
    Trophy Points:
    113
    Gender:
    Male
    Brrrrrrrrp!
     
    thunderwagn and Trialben like this.
  8. Trialben

    Trialben Well-Known Member

    Joined:
    Mar 30, 2016
    Messages:
    9,437
    Likes Received:
    9,502
    Trophy Points:
    113
    Gender:
    Male
    Occupation:
    Pest control tech
    Location:
    Palmwoods QLD
    Ah woops posted this in wrong thread how many did it take again to kick that keg:rolleyes:...
     
    thunderwagn likes this.
  9. Mase

    Mase Well-Known Member

    Joined:
    Mar 16, 2017
    Messages:
    1,772
    Likes Received:
    2,116
    Trophy Points:
    113
    Gender:
    Male
    Looked good enough for a long burp to me Trial, regardless of the thread. Looks delicious
     
    Trialben likes this.
  10. coreyman

    coreyman Member

    Joined:
    May 6, 2019
    Messages:
    31
    Likes Received:
    8
    Trophy Points:
    8
    Location:
    Center, Texas
    Why does a second pack or a starter improve the beer? I thought the yeast would just lag a bit and reproduce in your beer and take a little longer if you didn't pitch enough.
     
  11. BOB357

    BOB357 Well-Known Member

    Joined:
    Feb 3, 2018
    Messages:
    3,984
    Likes Received:
    7,295
    Trophy Points:
    113
    Location:
    Fallon, Nevada
    Mase likes this.
  12. Nosybear

    Nosybear Well-Known Member

    Joined:
    Jul 16, 2012
    Messages:
    9,394
    Likes Received:
    6,634
    Trophy Points:
    113
    Location:
    Aurora, CO, USA
    It doesn't necessarily improve the beer to use more yeast. My ales are much better since I stopped overpitching. As with everything brewing, the answers can vary and the American tendency to think if a little is good a lot is great isn't always true.
     
  13. BOB357

    BOB357 Well-Known Member

    Joined:
    Feb 3, 2018
    Messages:
    3,984
    Likes Received:
    7,295
    Trophy Points:
    113
    Location:
    Fallon, Nevada
    And mine improved greatly when I quit underpitching. There is certainly a happy medium range for pitching. More is not necessarily better, but neither is less.
     
  14. HighVoltageMan!

    HighVoltageMan! Well-Known Member

    Joined:
    Feb 2, 2015
    Messages:
    833
    Likes Received:
    810
    Trophy Points:
    93
    Location:
    Big Lake MN
    It's not about using more or less yeast, it's about getting the right amount for the strain of yeast and the style. Each yeast performs slightly different from each other and depending on style you may need to increase or decrease the amount of yeast. Typically .75 million cells per mL per degree plato is the accepted level for ales (lagers are 1.5-2.0 or even higher), but I sometimes pitch under that or over that depending on the strain and the pitching/fermentation temperature. Safale S04 is an example of a yeast that tolerates and performs well with a slight underpitch. Most lager strains perform better with an overpitch.

    If you haven't got pitch rates down yet, I would suggest sticking with dry yeast varieties such as S04 or US05 and pitching 1 pack per 5 gallons (@20 liters) and not worrying about it.
     
    Head First and Vesparados like this.

Share This Page

arrow_white