Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > The 2L starter: what's it good for?
Reply
 
Thread Tools
Old 09-29-2009, 05:09 PM   #1
Judochop
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Libertyville, IL
Posts: 333
Liked 7 Times on 5 Posts

Default The 2L starter: what's it good for?

I think I've got myself organized now. Someone please tell me this is a good 2L starter system.

Tuesday:
Boil 3 oz DME and yeast nutrient in 1L water in a 2000mL Erlenmeyer. Cool, shake, pitch Wyeast packet and set on a stir plate with loose foil cap for 24 hours…

Wednesday:
Entire flask goes in fridge.

Thursday:
a) Pull flask from fridge, decant wort, allow yeast to reach room temp. Meanwhile…
b) In a pan, boil 6 oz DME and yeast nutrient in 2L water. Cool to 70-75, and dump it onto yeast cake in the 2L Erlenmeyer.
c) Erlenmeyer goes back on stir plate w/ loose foil cap for 24 hours…

Friday:
Entire flask goes in fridge.

Saturday – Brew Day:
a) Start mashing.
b) Pull flask from fridge, decant almost all wort leaving just a little for swirling purposes, allow yeast to reach room temp.
c) Brew and pitch.

*****************************

Second question: Can anyone tell me how many cells can I expect by the end using this method? I’d like to know how high of an OG I can safely go with this method before I start having to resort to scheduling back-to-back brewing weekends and pitching onto entire yeast cakes. Mr. Malty tells me how many cells I need for a given OG, which is really nice of him, but for bigger beers he insists on telling me to begin with 2 packets of yeast at the start of the yeast growing process. I don’t want to buy two packets. I want to buy ONE packet and grow it as much as I can. Hence the above.

Thanks!


Judochop is offline
 
Reply With Quote
Old 09-29-2009, 05:17 PM   #2
JuanKenobi
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2009
Location: Martha's Vineyard, MA
Posts: 394
Liked 4 Times on 4 Posts
Likes Given: 1

Default

I can't speak to the first question as I've never required a yeast starter that big.

If you're looking at the mrmalty calculator, there is a slider bar at the bottom that you can use to change the number of yeast packs you're starting with. If you use less packs, the starter size will go up.


__________________

Primary: Black IPA
Secondary: Maibock
Kegged:
Bottled:
Pouring: IPA
JuanKenobi is offline
 
Reply With Quote
Old 09-29-2009, 05:25 PM   #3
broadbill
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2007
Location: Southern Maine
Posts: 3,537
Liked 347 Times on 246 Posts
Likes Given: 268

Default

According to Mr. Malty...with 2L of starter on a stirplate, that will allow you to ferment 5.25 gallons of wort at 1.135 OG!!!

Are you sure you need that much? Stirplates do a great job of getting maximum cell #s from a starter.
broadbill is offline
 
Reply With Quote
Old 09-29-2009, 05:29 PM   #4
Judochop
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Libertyville, IL
Posts: 333
Liked 7 Times on 5 Posts

Default

What the... !@#?

Well... I'll be. You're right. I'm an idiot. Thanks!

Now that I'm reading his advice it's still rather discouraging. Even using the wonderous stir plate, a 2L starter will only serve me well up to an OG of 1.065.

I gotta be honest. That kinda sucks. I had hoped for a better yeast count out of 2L and a stir plate. But then I'm wondering if he's talking about a 2L starter right from scratch, as opposed to this 'step-up' method I'm considering, and if the latter promotes more yeast growth?
Judochop is offline
 
Reply With Quote
Old 09-29-2009, 05:34 PM   #5
Judochop
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Libertyville, IL
Posts: 333
Liked 7 Times on 5 Posts

Default

Quote:
Originally Posted by broadbill View Post
According to Mr. Malty...with 2L of starter on a stirplate, that will allow you to ferment 5.25 gallons of wort at 1.135 OG!!!
Gah! I'm an idiot all over the place! For some reason I had my production date set back in early August and my viability was @ 55%.

I don't know about 1.135. (I think you are still accounting for 2 packets of yeast at the start.) But you're right that it's not as bad as I thought if I use fresher yeast.

To be honest, I've never checked the born-on date on my Wyeast packs. It seems they make a pretty big difference. I'll start looking at those from now on.
Judochop is offline
 
Reply With Quote
Old 09-29-2009, 05:35 PM   #6
petep1980
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
petep1980's Avatar
Recipes 
 
Join Date: Nov 2008
Posts: 1,901
Liked 13 Times on 13 Posts
Likes Given: 1

Default

I doubt you'll have many issues if you overpitch.
petep1980 is offline
 
Reply With Quote
Old 09-29-2009, 05:43 PM   #7
johnnyc
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2009
Location: North Atlanta, GA
Posts: 688
Liked 9 Times on 7 Posts

Default

I've done plenty of starters w/ 6oz DME to 2 quarts water w/ a single tube of white labs and its handled 1.070-80 no problem. Start it a couple days beforehand and let it run on the stirplate until time to pitch.

How big of a beer are you looking to ferment that requires that size of starter?
__________________
Kegged: Hoppy Amber, ESB, Weizenbock, Breakfast Stout, IPA

Fermenting: Yooper's Oktoberfest
johnnyc is offline
 
Reply With Quote
Old 09-29-2009, 05:52 PM   #8
Saccharomyces
Be good to your yeast...
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Saccharomyces's Avatar
Recipes 
 
Join Date: Jun 2008
Location: Pflugerville, Texas
Posts: 5,444
Liked 99 Times on 57 Posts
Likes Given: 3

Default

Yeast concentration is mostly dependent on volume so whether you pitch a pack into 2L or build it up you should end up with roughly the same cell count which will be around 300B cells.
__________________
[How to Calculate Mash Efficiency | Do I Need a Yeast Starter? | My Ghetto Fermentation Chamber | Twitter | 6 Gal. HDPE Fermenters | Slanting Yeast | No Sparge Brewing]

Quote:
Originally Posted by Soperbrew
big brother only monitors facebook and untappd
Saccharomyces is offline
 
Reply With Quote
Old 09-29-2009, 06:00 PM   #9
Judochop
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Libertyville, IL
Posts: 333
Liked 7 Times on 5 Posts

Default

Quote:
Originally Posted by johnnyc View Post
I've done plenty of starters w/ 6oz DME to 2 quarts water w/ a single tube of white labs and its handled 1.070-80 no problem. Start it a couple days beforehand and let it run on the stirplate until time to pitch.
Do you know if starting right off with 2L of wort as a starter ends up with the same # of cells as opposed to stepping up from 1L to 2L?
Quote:
Originally Posted by johnnyc View Post
How big of a beer are you looking to ferment that requires that size of starter?
I suppose I'm approaching brewing without limits. I mostly plan to dabble with stuff in the 1.040-1.080 range, but certainly I'll creep up to and beyond 1.100 from time to time.

Pitching "enough" yeast is the rule. I just need to know that "enough" is what I'm getting. I'm trying to reach a simple and safe system. Something like:

OG 1.035-1.055... 1L starter
OG 1.056-1.080... 2L starter
OG 1.081+.... pitch onto cake from previous batch
Judochop is offline
 
Reply With Quote
Old 09-29-2009, 06:04 PM   #10
Judochop
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Location: Libertyville, IL
Posts: 333
Liked 7 Times on 5 Posts

Default

Quote:
Originally Posted by Saccharomyces View Post
Yeast concentration is mostly dependent on volume so whether you pitch a pack into 2L or build it up you should end up with roughly the same cell count which will be around 300B cells.
Why all the talk about ramping up starter sizes then?

If the end result is a 4L starter (for a big lager, say), why not just start with your 12 oz DME and 4L of water right off the bat?


Judochop is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is this starter still good to go? snwmnhntr Fermentation & Yeast 1 10-17-2009 02:53 PM
Good Starter kit? jrodincincy Beginners Beer Brewing Forum 20 01-23-2009 03:35 PM
Is this a good starter kit??? BellsBeerDrinker Beginners Beer Brewing Forum 14 12-12-2008 02:31 AM
Is this a good starter kit? jasonarnold Beginners Beer Brewing Forum 4 09-28-2008 09:29 PM
what is a good starter kit? thorberry Beginners Beer Brewing Forum 6 11-22-2005 02:12 AM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS