Harvesting/Washing Yeast from Rauchbier?

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Evan!

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I'm going to be brewing my first Rauchbier soon with White Labs' Southern German Lager strain. I've never done a true Rauch before, so I'm wondering if it's okay to harvest/wash and reuse the yeast from a smoked beer. Normally with an ale yeast I wouldn't be so concerned because ale's are a little more forgiving---but I'm a little concerned that if I were to brew a light German lager with the harvested culture, it might be so delicate and clean that some of the smoke might telegraph to that batch.

Thoughts?
 
I know at O'Fallon Brewery, the two beers that they will not cross over when it comes to the yeast slurries is their Dry Hopped IPA and their Smoke Porter.
 
I know at O'Fallon Brewery, the two beers that they will not cross over when it comes to the yeast slurries is their Dry Hopped IPA and their Smoke Porter.

I suppose it's better safe than sorry. I have plenty of harvested WLP838 in different bottles, so I could just use some of it and discard that, and still have some on hand from the first washing.
 
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