Double pitching! Yea or Nay

Discussion in 'Homebrewing' started by RetiredVeteran, Oct 17, 2020.

  1. RetiredVeteran

    RetiredVeteran Initiate (27) Mar 27, 2019 Ohio

    I have some experience at brewing my own and I’m always willing to tweak recipes. With that said, I normally buy prepackaged recipe kits and add some extra fermentables to get a bigger beer. What about the addition of more yeast to get maximum fermentation?
  2. VikeMan

    VikeMan Poo-Bah (1,953) Jul 12, 2009 Pennsylvania

    More yeast doesn't (generally) cause more fermentation. But if you pitch the amount of yeast appropriate to your batch size and gravity, you'll generally get a healthy fermentation with less risk of off flavors.

    Most brewing software has yeast calculations built in. Or you could check out Mr. Malty or YeastCalc, both of which are online yeast calculators.
  3. Supergenious

    Supergenious Disciple (380) May 9, 2011 Michigan

    You should always adjust the amount of yeast you pitch based on your SG. The more fermentable sugars, the more yeast is needed. As mentioned above use a yeast pitch calculator. Another one is brewers friend.
    PapaGoose03 likes this.
  4. PapaGoose03

    PapaGoose03 Poo-Bah (2,830) May 30, 2005 Michigan

    Healthy yeast is always important, and pre-packaged recipe kits can have old yeast, so look at the date on the packet. Don't get caught guessing how many yeast cells that come with the kit are still alive.

    Also, don't bump up the fermentables to expect a 12% abv and then select a yeast that craps out at 9%. Select your yeast wisely.