Yes, accumulation of break material does become an issue after even only a couple of brews. I've tried straining out hops when racking from the kettle and as for break material, I can't do much about that with a Counterflow Wort Chillerrwh wrote:Aaaah now it all makes sense.
I repitched onto a yeast cake (WYeast 1056) for the first time yesterday. Pitched before dinner, and when I got back afterwards and it was going mental. Shortest lag time ever.
One thing it does bring up tho is my habit of chucking absolutely everything into the fermenter. The hot and cold breaks as well as the hop debris would really build up after a few AG APAs!
other than whirlpooling but if all else fails, you can decant 300ml or so of slurry, toss the rest, clean the fermenter and toss the saved slurry back in before repitching and that'll be ok. I also plan my brews by colour - eg, brew an APA/pilsener, repitch with an amber ale/oktoberfest and then repitch a stout/schwartzbier. It was actually this technique that introduced me to Amarillo laden ambers!! 
Cheers,
TL
