Happy HolidaySs Giveaway - Last Sponsor Giveaway of the Year!

Come Enter the BrewDeals/FastFerment Giveaway!


Home Brew Forums > Home Brewing Beer > General Beer Discussion > Yeast Starter
Reply
 
LinkBack Thread Tools
Old 05-09-2011, 03:57 AM   #1
ArcLight
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Millburn, NJ
Posts: 951
Liked 44 Times on 38 Posts
Likes Given: 48

Default Yeast Starter

If I make a Yeast Starter and don't want to dump all the liquid into the wort (diluting the good wort with crappy starter wort) and instead want to let the starter ferment for a few days, and decant off the liquid and pitch the remaining slurry/yeast - how much water - DME should I use for a 5 gallon brew?
1 cup - 2 liters, and decant? Will this make too much yeast?
1/2 cup to 1 liter?

__________________
ArcLight is offline
 
Reply With Quote Quick reply to this message
Old 05-09-2011, 04:01 AM   #2
reim0027
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2008
Posts: 409
Liked 2 Times on 2 Posts

Default

Welcome to HBT!

What's your predicted OG? Ale or lager?

__________________
Beneath this mask there is more than flesh. Beneath this mask there is an idea, Mr. Creedy, and ideas are bulletproof.
~V
reim0027 is offline
 
Reply With Quote Quick reply to this message
Old 05-09-2011, 04:02 AM   #3
ArcaneXor
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2007
Posts: 4,459
Liked 87 Times on 81 Posts
Likes Given: 16

Default

Use a ratio of 1:100, i.e. 100 grams per liter. I'd make a 1.5-2 liter starter. Less than that, and you don't get a whole lot of propagation.

__________________
The Fiesty(sic) Goat Brewery est. 2007 & Clusterfuggle Experimental Ales est. 2009
Primary: Saison, Berliner Weisse, sLambic I, sLambic II, IPA, 70/-
Secondary: Orange Blossom Mead, Flanders Red I
Kegged: Fat Man Porter w/ 1469, Fat Man Porter w/ 005, Centennial Falcon w/ Conan, Centennial Falcon w/ Denny's, Barrel-aged Fat Man Porter, Belgian Dark Strong, Dark Mild
ArcaneXor is offline
 
Reply With Quote Quick reply to this message
Old 05-09-2011, 04:07 AM   #4
DeafSmith
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
DeafSmith's Avatar
Recipes 
 
Join Date: Jan 2009
Location: Richardson, TX
Posts: 1,448
Liked 33 Times on 31 Posts
Likes Given: 9

Default

Quote:
Originally Posted by ArcLight View Post
If I make a Yeast Starter and don't want to dump all the liquid into the wort (diluting the good wort with crappy starter wort) and instead want to let the starter ferment for a few days, and decant off the liquid and pitch the remaining slurry/yeast - how much water - DME should I use for a 5 gallon brew?
1 cup - 2 liters, and decant? Will this make too much yeast?
1/2 cup to 1 liter?
How big a starter depends on the OG of your wort, if it's an ale or lager, and how old the yeast is. Use this calculator:

http://www.mrmalty.com/calc/calc.html

As for the ratio of water to DME, I always use 4 oz. of DME per liter - not sure what 4 oz. translates to in cups. This gives an SG of about 1.040.
__________________
DeafSmith is offline
 
Reply With Quote Quick reply to this message
Old 05-09-2011, 03:00 PM   #5
ArcLight
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Millburn, NJ
Posts: 951
Liked 44 Times on 38 Posts
Likes Given: 48

Default

The Mr Malty calculator is based (I think) on dumping the entire contents of the starter flask into the wort.
If you decant off the liquid and only pitch the slurry, you will have less yeast. Also - I think the calculator assumes 18 hours? What if its more or less?

Its probably not a big deal if Im off a bit, I would hate to over pitch yeast though, and not get a good flavor.

__________________
ArcLight is offline
 
Reply With Quote Quick reply to this message
Old 05-09-2011, 10:13 PM   #6
supermoth
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2008
Location: Oakland, CA
Posts: 244
Liked 15 Times on 11 Posts
Likes Given: 10

Default

ArcaneXor, 100 grams per liter is a 1:10 ratio. (100g:1000mL).

4oz is 112 grams (28g per oz) so DeafSmith's recipe is also approximately 1:10.

__________________
supermoth is offline
 
Reply With Quote Quick reply to this message
Old 01-06-2013, 03:07 PM   #7
okiedog
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2012
Location: Santa Cruz, Ca
Posts: 298
Liked 13 Times on 11 Posts
Likes Given: 9

Default

So, a yeast starter added to the wort could effect the SG of the wort if the SG's are different. For an accurate OG reading, do you measure your OG after you pitch your yeast?

__________________
okiedog is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Does this yeast starter look OK to you? fastricky General Beer Discussion 19 04-22-2009 05:38 PM
Yeast starter Bigbens6 General Beer Discussion 9 04-21-2009 11:53 PM
yeast starter f up blue800 General Beer Discussion 4 04-15-2009 03:20 PM
Yeast starter vid nukebrewer General Beer Discussion 3 11-30-2008 03:18 PM
My first yeast starter ButchTN General Beer Discussion 3 09-26-2008 05:09 AM



Newest Threads

LATEST SPONSOR DEALS