What do you think? (Yeast Volume vs. Fermentation Duration) - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > What do you think? (Yeast Volume vs. Fermentation Duration)

Reply
 
Thread Tools
Old 02-20-2007, 01:17 AM   #1
lgtg
Recipes 
 
Jan 2007
Southwest Florida
Posts: 198


If you decide to make a "half batch" (2.5 gallons) and you purchase a nominal test tube of WL yeast and pitch it, that you have essentially doubled the yeast cell count and thusly reduced the estimated primary fermentation time that is stated on a recipe by half?

I did this last week (and No, I don't have a hydrometer yet. Working on it though) and pitched the whole vial on a partial grain\extract recipe. All of my other batches that were "taylored" to the 2.5 gallon mark (including dry yeast packs) fermented in excess of five days or longer. This batch fermented approximately half of the time stated on the recipe ( 7-8 days for a sweet stout)

Does this sound theoretically correct?? More yeast, less wort, less fermentation time?

Thanks for any insight..

Larry

 
Reply With Quote
Old 02-20-2007, 01:44 AM   #2
david_42
 
david_42's Avatar
Recipes 
 
Oct 2005
Oak Grove, Oregon, USA
Posts: 25,597
Liked 155 Times on 145 Posts


Less wort is the real key, since the yeast growth period is typically shorter than the fermentation period.
__________________
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"

"I would like to die on Mars, just not on impact." Elon Musk

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fermentation volume? claphamsa General Techniques 2 06-04-2009 07:57 PM
Yeast Starter Duration kdsarch General Techniques 1 01-23-2009 05:45 PM
Primary fermentation duration pherball Beginners Beer Brewing Forum 8 12-08-2007 03:48 AM
yeast starter duration Joe028 Recipes/Ingredients 6 02-02-2007 10:31 PM
Fermentation Duration? RiversC174 General Beer Discussion 3 02-26-2006 01:07 PM


Forum Jump