Can I reuse yeast?

Longhorn · Nov 2, 2011

My ale is reaching the end of primary fermentation and I have another kit I'd like to get going on straight away, but I have no yeast. I'm a way away from the nearest HBS, so if I use a new packet of yeast it's going to be a while before I can get some.

It's my understanding that yeast 'feeds' as it eats the sugar, so can I just scoop a dollop of the settled yeast from the old batch and introduce it to the new? If I can, how much do you suggest?

keith1664 · Nov 2, 2011

Yes you can, just make sure your "dolloping" utensil is clean and sanitised.
As for how much, try this. http://www.mrmalty.com/calc/calc.html

Vossy1 · Nov 3, 2011

Have a look here :thumb:

RobWalker · Nov 3, 2011

Vossy1 said:
Have a look here :thumb:

That's brilliant advice man, cheers!

WelshPaul · Nov 4, 2011

The way that I'm going to try it this weekend is:

- Make up first batch of wort (American wheat beer in this case, S-05 yeast) as usual
- After several days, rack into a second FV for secondary fermentation, leaving the trub and yeast behind.
- Make up second batch of wort (American Pale Ale) and pitch this onto yeast bed

I've never tried it before so I'm keen to see what results it gives (and S-05 is expensive!).

Longhorn · Nov 5, 2011

Thanks guys, very helpful.

Vossy1 · Nov 5, 2011

I've never tried it before so I'm keen to see what results it gives

I hope you've got plenty of head room in the fv...the yeast will be VERY vigorous :grin:

Can I reuse yeast?

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