First attempt at yeast washing - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > First attempt at yeast washing

Reply
 
Thread Tools
Old 04-19-2011, 10:45 PM   #1
turkeyjerky214
Recipes 
 
Nov 2009
Westminster, CO
Posts: 423
Liked 10 Times on 9 Posts



I'm finally getting around to saving and reusing yeast.

I'm pretty sure I understand what I'm doing, but I just wanted to double check.
Basically I siphoned off the beer, dumped a quart of boiled/cooled water, swished it around, poured it into four sanitized mason jars, and put in the fridge.

This is what it looks like after a day.



I kind of expected the liquid on top to be clearer so I wanted to make sure it's supposed to look like this before I go any further.

From what I understand, the next step is to carefully pour the liquid off the top into another sanitized mason jar, and that is what I'll store and reuse when the time comes.

I pulled this from a porter, so will it be okay to use it on a lighter beer, or will it affect the color?

Also, how do I know the correct amount of this to add to my starter wort to make the correct amount of starter?



 
Reply With Quote
Old 04-19-2011, 10:59 PM   #2
smagee
Most impressive "member"
HBT_LIFETIMESUPPORTER.png
 
smagee's Avatar
Recipes 
 
Mar 2011
San Jose, CA
Posts: 920
Liked 12 Times on 9 Posts


While what you've done is "yeast reusing", I wouldn't call it "washing". In order to wash the yeast, you need a step in there where you let the trub settle out and then pour off the slurry.

Basically, once you swirl the water and collect all the detritus, you pour the entire yeast mixture into a large container of some sort and let it settle for 20-30 minutes or so. Since trub separates out and sinks faster than the active yeast, you'll get a layer at the bottom. You then pour the liquid slurry (avoiding the solids at the bottom) into your preserve jars.

The washing process helps address your follow-up question about whether a porter cake can be used on something like a pale: unwashed, I'd definitely say it's inadvisable, as you'll get some color adjustment from it. Washed, however, I think it'd be fine. The washing process is good for removing a fair portion of that color residue as well as any dry hops (obviously not for this batch, but in general) so that the yeast doesn't "corrupt" the next batch.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yeast washing attempt 2 Chefencore Fermentation & Yeast 3 04-02-2011 01:59 AM
Croping yeast and washing yeast questions brewguy82 Fermentation & Yeast 3 02-21-2011 10:39 AM
Yeast washing attempt failed, please help me to try to fix this... badmajon Fermentation & Yeast 14 12-28-2010 12:12 PM
2nd attempt at yeast washing and still haven't figured it out... ChuckinWA Fermentation & Yeast 9 01-26-2010 05:19 AM
First attempt at washing yeast Buffman Fermentation & Yeast 3 08-16-2009 11:55 PM


Forum Jump