I've read a lot about people reusing a yeast cake from one batch to ferment a second batch (usually the first batch is low/moderate gravity and the second batch is high gravity). I get that you want the yeast strain to be appropriate for both beers.
My question is more of a technical nature. After you rack the first beer off the yeast cake, what do you do next? Shake the cake up with the dregs? Just rack the second beer right on top? Do you rack the second beer and then shake the whole thing up? Do you aerate the second beer before you rack it onto the yeast? Has anyone every had problems with reusing a yeast cake?
My question is more of a technical nature. After you rack the first beer off the yeast cake, what do you do next? Shake the cake up with the dregs? Just rack the second beer right on top? Do you rack the second beer and then shake the whole thing up? Do you aerate the second beer before you rack it onto the yeast? Has anyone every had problems with reusing a yeast cake?