Yeast harvest after primary or secondary ferment?

[Nicko83]

Just wondering if I'm better off harvesting the yeast from my latest brew, from my primary fermenter, after I rack to secondary, or from secondary fermenter, at bottling time?

What do people normally do to ensure harvesting the healthiest yeast?

 

[Yob]

Primary

Yeast from secondary tend to be more attenuative and less flocculent, you can end up with dry cloudy beer.

Why are you racking to secondary?

 

[Danscraftbeer]

The primary has the big thick yield of yeast that's were I harvest it. (as long as its a fairly clean wort without loads of hops and non yeast material)
You can get enough for another 4 brews that way.
Other than I thought you could harvest it at any of the stages including from the bottle.
Interesting info Yob. I guess the bottle is resultant of ferment too so it would be the same as primary. B)

 

[Camo6]

What do people normally do to ensure harvesting the healthiest yeast?

Top cropping FTW! Catch those yeasties while they're hard at it.

But otherwise, like above, primary fermentor without dry hopping.

 

[Tex083]

I was harvesting but after reading an article online somewhere I will start "over building" my starter so I have 500ml to save before pitching. Clean yeast every time.

Yes collect from primary. Look at the yeast washing thread.