Noob yeast washing question - Page 2 - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Noob yeast washing question
Cool Brewing Giveaway - Supporting Membership Drive & Discount

Reply
 
Thread Tools
Old 11-20-2012, 12:49 AM   #11
Rundownhouse
Recipes 
 
Feb 2010
Cincinnati, Kentucky
Posts: 331
Liked 8 Times on 8 Posts


Quote:
Originally Posted by WoodlandBrew View Post
When pitching from a slury the calculators can be pretty far off in my experience.
I have had zero luck with the MrMalty calculator from slurry. Just too much subjectivity between the thick/thin and non-yeast percentages.



 
Reply With Quote
Old 11-20-2012, 02:17 AM   #12
ilikeguns
Recipes 
 
Jan 2012
, NY
Posts: 255
Liked 19 Times on 17 Posts


so here is my 3 jars 24 hrs later... looks like yeast? But yeah.. I don't see how anyone can venture a guess about viability or active cell count with any amount of accuracy..

I think I'll just make a starter and see how it goes...
Click image for larger version

Name:	2012-11-19 21.03.09.jpg
Views:	69
Size:	29.4 KB
ID:	84708  
__________________
life is too short to drink beer you don't love...

 
Reply With Quote
Old 11-20-2012, 01:19 PM   #13
WoodlandBrew
HBT_SUPPORTER.png
 
WoodlandBrew's Avatar
Recipes 
 
Oct 2012
Malden, MA
Posts: 2,191
Liked 244 Times on 199 Posts


Yeah you really don't know what you have from a slurry. I have used the Mr. Malty slurry calculator and the beer came out fine, but recently found it's estimations are way off. The "thick to thin" slider doesn't even cover the entire range of cell density of my slurries, and I would have called all of mine "thick" doing a count. Also the viability from havest can range anywhere from 30%-90% on the day of harvest. The good thing is that it stays fairly viable once it is in the fridge.

bottom line, assume your cell count could easily be off by a factor of four when entering numbers into the starter calculator. The easy way to get an estimate is to assume 100 billion cells per liter and don't bother with the calculators.
__________________
The 2nd edition is now available: Brewing Engineering
Woodland Brewing Research Blog Applied Science for Better Beer.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yeast washing noob guldalian Fermentation & Yeast 4 10-14-2012 04:02 AM
Yeast washing question rollinred Fermentation & Yeast 6 09-02-2010 12:47 AM
Noob question on yeast saving/washing KCBrewer Fermentation & Yeast 9 03-16-2010 12:30 AM
Yeast Washing Question cellardoor General Beer Discussion 1 09-15-2008 03:00 AM
Another yeast washing question Pumbaa General Techniques 4 10-15-2006 05:03 PM


Forum Jump