"WD" > wrote in message
om...
> I have a Riesling I have fermented dry. I now want to add back some of
> the original unfermented juice to add sweetness. I do not want to add
> sorbate. Will the Buon Super Jet number three filter ( .5 micron )
> take out enough of the yeast to stop another fermentation? I have
> cold stabilized and the wine is now clear. Should I just add in the
> juice and then filter?

I'm with you on not liking to use sorbate, but that's not a tight enough
filtration to achieve sterility. You need a 0.45µ _absolute_ filter to
remove all the yeast cells. That pad filter is 0.5µ _nominal_, so it will
let some yeast cells slip past. Sorry. :^(

Tom S