Floating Yeast

[matchew]

Hi folks..Fermented a batch of hefe weizein and used the yeast for a second batch and at the end of the primary fermentation of the second there was alot of, what looked like floating yeast on the top of the wort.I racked to secondary and tasted a little and it tasted right..Anyone had this happen or know what it's from when using recultured yeast.??.Thanks

[Freon12]

Are you using Wheinstephen? If so, it clumps together after the second batch. I have had no ill effects from this. Also low tempreture causes this yeast to clump and float. Wierd, but fruity.