Results 1 to 9 of 9

Thread: Re-hydrating Dry Yeast Bricks

  1. #1
    Join Date
    Sep 2016
    Location
    Kingston
    Posts
    5

    Re-hydrating Dry Yeast Bricks

    I would like to know what process you are following to re-hydrate your dried yeast. I currently use two bricks for one batch and I have yet to find an ideal process. I tried using my yeast brink, but that turned into a dried yeast ball disaster. Maybe I stirred it too soon.

  2. #2
    Join Date
    Oct 2010
    Posts
    106
    just pitch it in during knock out

  3. #3
    Join Date
    Nov 2013
    Location
    Antigua, Guatemala
    Posts
    35

    Throw it in dry

    Quote Originally Posted by Rooh View Post
    just pitch it in during knock out
    +1 to what Rooh said. I've tried a few ways to rehydrate and all are a PITA with no verifiable improvement in fermentation. Just open the manway and sprinkle on top of wort during knock out with extreme caution; ie face mask, latex gloves, etc all sanitized.

  4. #4
    Join Date
    Apr 2015
    Location
    Lakewood, CO
    Posts
    43
    I'm gonna repeat everyone else. Sanitize everything, wear gloves, sprinkle the yeast on chilled wort. I don't even oxygenate, based on advice from Fermentis, and I have no problems with long lag times, stalled fermentation or off flavors. I even keep resealed partial bricks for use later. Hope this helps.

  5. #5
    Join Date
    Dec 2010
    Location
    Nevada City, CA
    Posts
    309
    Our SOP is to pull about 7 gallons of wort into our brink (at the temps specified on the fermentis instructions) at the beginning of KO. We then open the brink and sprinkle the yeast on top. We swirl it around off and on during the rest of KO. Usually by the end of KO, it has had at least 30-40 minutes and creates a pretty uniform slurry. We then back fill the brink from the FV and pump it all back in. We may do this a couple times to get all the residual from the sides of the brink. It works well for us. We use two bricks for our lagers and do it this way every time.
    Dave Cowie
    Three Forks Bakery & Brewing Company
    Nevada City, CA

  6. #6
    Join Date
    Apr 2018
    Location
    Dearborn Heights, MI, USA
    Posts
    8
    I remember reading at one point that throwing dry yeast directly in wort can kill up to half your cell count. In places I've worked we would mix 1 gallon of spring water to 1 500g brick in a sanitized brink, and allow to rehydrate for 30 minutes. Never had any issues, would get could activity at the 30 min mark.

  7. #7
    Join Date
    Mar 2003
    Location
    Minocqua WI
    Posts
    814
    Catch 22 - the reason I'm using dry is because I don't have a brink. If I had a brink to re-hydrate in id be using liquid. (and no not corneys)
    Brewmaster, Minocqua Brewing Company
    tbriggs@minocquabrewingcompany.com
    "Your results may vary"

  8. #8
    Join Date
    Sep 2013
    Location
    Massachusetts
    Posts
    240
    Directly from Fermentis

    Alternatively, pitch the yeast directly in the fermentation vessel providing the temperature of the wort is above 20°C (68°F).
    Progressively sprinkle the dry yeast into the wort ensuring the yeast covers all the surface of wort available in order to avoid clumps.
    Leave for 30 minutes, then mix the wort using aeration or by wort addition.

  9. #9
    Join Date
    Oct 2002
    Location
    Chesterfield, UK
    Posts
    1,838
    A sterilised stainless bucket and other implements - then follow the instructions supplied religiously and chuck the activated yeast into the collected cooled wort.

    I must admit to usually stirring a couple more times before I add to the FV, (not QUITE) as per instructions, but this avoids the faintest chance of balls, and minimises sediment when you add to the FV.

    And as has been said, unless very high gravity brewing, no additional oxygen is normally required. If you really need to add more, then give it twelve hours before rousing to allow the yeast to use up existing oxygen requirement. Oh, yes, I found in many cases, with ales at least, half the recommended quantity works just as well - save up to 50% of your purchase costs into the bargain of course.
    dick

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •