Harvesting yeast from starters

Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum

Help Support Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Have you considered either a frozen yeast bank or (my favorite) slants/plates of sterile wort media?

Since you are attempting to harvest from a starter, yeast washing (truthfully, 'rinsing' as 'washing' needs an acid solution to knock out bacteria) is irrelevant to this discussion.

If you harvest a small portion of slurry (say 10mL) from a crash-cooled starter, you can store that in a suspension of distilled water (100 mL) in refrigeration.
 
Have you considered either a frozen yeast bank or (my favorite) slants/plates of sterile wort media?

Since you are attempting to harvest from a starter, yeast washing (truthfully, 'rinsing' as 'washing' needs an acid solution to knock out bacteria) is irrelevant to this discussion.

If you harvest a small portion of slurry (say 10mL) from a crash-cooled starter, you can store that in a suspension of distilled water (100 mL) in refrigeration.

I have considered a frozen yeast bank & slants/plates. Ordering materials is the main obstacle for that route.

Harvesting some slurry from the starter and topping off with distilled water was exactly what I had in mind. I wasn't sure of the amount of slurry I needed or if I should use distilled water.

I'm guessing I need to let the starter ferment out completely before I crash cool.

For containers I have a few pint size mason jars I will boil to sterilize. I'm not sure how to measure slurry, should I pour about a 1/2 inch of slurry than top off with distilled water?

Any other suggestions appreciated.
 
Read the yeast washing thread. It outlines the process really well. I washed a few batches, then I switched to freezing. I don't have room in my fridge for all the strains I want...

B
 
I've been wondering the same thing. I have a washed yeast in the fridge that is getting a little old.
 
buy a white labs yeast tube. make a starter. sterilize the tube and split the starter into the tube to save it for next time, pitch the rest of the starter into your wort / fermenter.
 
buy a white labs yeast tube. make a starter. sterilize the tube and split the starter into the tube to save it for next time, pitch the rest of the starter into your wort / fermenter.

This sounds like a good plan. I have been using smack packs till now and didn't even think about the white lab vials.
 
Back
Top