Dead yeast - Home Brew Forums
Register Now For Free!

Home Brew Forums > Wine, Mead, Cider, Sake & Soda > Mead Forum > Dead yeast

Reply
 
Thread Tools
Old 11-14-2010, 03:10 PM   #1
mikefox
Registered User
Recipes 
 
Nov 2010
middle of, nowhere
Posts: 24


So I've heard that if you add dead yeast it can serve as an nutrient for the rest but I read in an wikipedia article on stuck fermentation that "Once the fermentation is stuck, it is very difficult to restart due to a chemical compound released by dying yeast cells that inhibit the future growth of yeast cells in the batch."
So do dead yeast cells "sabotage" the rest?

 
Reply With Quote
Old 11-14-2010, 04:32 PM   #2
Fletch78
 
Fletch78's Avatar
Recipes 
 
Feb 2010
Athens GA
Posts: 1,345
Liked 26 Times on 18 Posts


Maybe it depends on how they die. Quickly in boiling water, or slowly in a must. It's pretty common practice to use dead yeast, it's an ingredient in LD Carlson's Yeast Nutrient, and many other yeast nutrients on the market.

 
Reply With Quote
Old 11-15-2010, 03:37 PM   #3
MedsenFey
Recipes 
 
Jan 2010
Florida
Posts: 1,034
Liked 16 Times on 16 Posts


Actually one way to get a stuck fermentation going again is to pasteurize it and repitch the yeast. The heating may get rid of yeast inhibitors (possibly by denaturing them).

Boiled (or autolyzed) yeast don't inhibit active yeast.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Other sources for Yeast Energizer and Yeast Nutrient BigStone777 Mead Forum 19 08-16-2014 01:57 PM
Is it dead ? SAS98M Mead Forum 5 08-18-2010 09:20 AM
Yeast nutrient and yeast energizer Q's Mumford Mead Forum 5 02-26-2010 05:14 PM
yeast energizer versus yeast nutrient VermontFreedom Mead Forum 2 08-19-2006 03:17 PM


Forum Jump