Mr. Malty question...lagers - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Mr. Malty question...lagers

Reply
 
Thread Tools
Old 03-14-2010, 07:19 PM   #1
Q2XL
Recipes 
 
Feb 2009
Eastpointe, Michigan
Posts: 509
Liked 3 Times on 3 Posts



I am going to be getting a starter going today for an Oktoberfest that I will be brewing shortly. According to Mr. Malty it says that I should be using 2 vials of yeast and then make a 3.73 quart starter.

I have Malty set for the fewest yeast packs(vials) as possible and it still reads 2 vials. I am not going to buy 2 vials so my question is this.... Instead of making a 3.73 qt. starter should I just bump that up to about a 6 qt. starter?

 
Reply With Quote
Old 03-14-2010, 07:25 PM   #2
philrose
Recipes 
 
Jul 2008
Seattle, WA
Posts: 1,410
Liked 13 Times on 10 Posts


did you set your preference to lager fermentation?
__________________
In process-
Kegged-
Last bit of Sparkling Mead
Planning- Witbier

@philthebrewer

 
Reply With Quote
Old 03-14-2010, 08:24 PM   #3
Q2XL
Recipes 
 
Feb 2009
Eastpointe, Michigan
Posts: 509
Liked 3 Times on 3 Posts


Quote:
Originally Posted by philrose View Post
did you set your preference to lager fermentation?
Yep, everything is set. Lager, age of yeast, volume, gravity, stirplate etc.

 
Reply With Quote
Old 03-14-2010, 09:11 PM   #4
philrose
Recipes 
 
Jul 2008
Seattle, WA
Posts: 1,410
Liked 13 Times on 10 Posts


then I'd go with it, stepping up the starter one extra time as you had mentioned (had to re read op, whoops)
__________________
In process-
Kegged-
Last bit of Sparkling Mead
Planning- Witbier

@philthebrewer

 
Reply With Quote
Old 03-15-2010, 11:44 AM   #5
dstar26t
If it's worth doing, it's worth overdoing
HBT_SUPPORTER.png
Recipes 
 
Jan 2008
Ridley Park, PA
Posts: 1,152
Liked 57 Times on 42 Posts


You could do a two step starter. 1 vial into 1 Liter, let it finish and chill for 2 days and decant. Add another ~2.87 liters, let it finish, chill it, decant and pitch. That'll get you 523 billion cells which I think is close to what you need without knowing what numbers you are using.
__________________
Next: ?
Fermenting: Azacca Oat Pilsner, Egregious-ish, Barrel Fermented Dreg DelcoLambic, Sacch Trois Helles
Drinking: RIS v7, Doppelbock, RIS v6, Carrot Blossom Cedar Mead, Sauerkraut Fermented Gose, Gueuze, Brett Blonde, Kriek, Saison, Sour Blonde
Barrel aged: Rye Barleywine, Tripel, Wee-Heavy

 
Reply With Quote
Old 03-15-2010, 11:56 AM   #6
SpanishCastleAle
Recipes 
 
Jan 2009
Central Florida
Posts: 4,345
Liked 36 Times on 36 Posts


I think it has to do with tempering yeast health with cell mass. The calculator doesn't 'allow' you to use too few vials and too big of a starter because it's too much to expect of an intial yeast count to multiply up to such a large final cell count and still be healthy. If, for example, you start with a ~70% viable yeast vial (so ~70 billion cells) and you need 475 billion cells for your lager then you are expecting the yeast to increase it's cell mass by over 6.5x in one starter. The yeast just won't be healthy after all that work. EDIT: And they will often run out of nutrients before they even reach such lofty goals anyway.

The Fourteen Essential Questions about Yeast Starters article explains why it's not good to make starters that are too small (keep this in mind whenever you plan to step up because that second step may be too small, also detrimental to yeast health) but doesn't really say why too big is bad. So I'm speculating but that's my guess.
__________________
Early brewers were primarily women, mostly because it was deemed a woman's job. Mesopotamian men, of some 3,800 years ago, were obviously complete assclowns and had yet to realize the pleasure of brewing beer.- Beer Advocate


 
Reply With Quote


Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mr. Malty pitch rate question ChuckinWA General Beer Discussion 7 12-31-2009 04:52 AM
Mr. Malty starter question? Tilldeath Beginners Beer Brewing Forum 3 10-26-2009 11:52 AM
Mr. Malty Yeast Pitching Calculator question Lenny2884 General Techniques 7 03-03-2009 12:58 AM
Mr. Malty pitching calc- Noob question! Thumper Beginners Beer Brewing Forum 3 01-15-2009 02:11 PM
Question about Mr Malty Calc BrooZer General Techniques 9 01-20-2008 07:28 PM


Forum Jump