Re pitching

[wilfh]

Can anyone tell me at what sort of ABV should I be ok to reuse yeast or to put it another way what is the upper limit for reusing yeast again for a different brew. As I understand it the yeast gets a bit beaten up with higher abv such as 9% but what about lower strength beers?

I am currently fermenting WPL500 with an og of 1.056. Would this be too strong to reuse?

Wilf

[mysterio]

That's fine to re-use. I've re-used yeast from beers around 1.060-1.070, I imagine you could go higher if the yeast was in good condition to start with. If anything it seems to me more active on the re-pitch.

Did you make a starter/aerate the wort for the first beer?

[alix101]

If you go on Mr malty, you can calculate the amount of slurry to use to re pitch, you will have more than enough viable yeast, washing and acid washing is an option to try and only pitch healthy cells http://www.mrmalty.com/calc/calc.html

[chastuck]

I've re-used yeast from my own bottled brews as high as 12% ABV. Never had any problems with yeast vigour in subsequent fermentation.