re use yeast slurry from bottles?

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badmajon

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Can I reuse the crap at the bottom of the bottle... the little bit I usually leave in there by dumping it in some DME or something? I just hate the idea of paying 12 bucks for grains and 7 for yeast.
 
Yepp sure can. Often people aquire rare yeast strains by buying a bottle conditioned trappist and cultivating the slurry at the bottom.

Just try to use the yeast with a same style beer.
 
Sure, just start small. You want a fast fermentation to alleviate any sanitation concerns, plus the yeast viability is probably very low. I like to start with 50 mL of ~1.030 wort, and if that takes off step it up to 200 mL, then 500 mL. That will reproduce back up to the cell count of an oldish smack pack. At that point I give it the smell/taste test, and if it seems good you can pitch into your full-size starter.
 

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