Originally Posted by surlees
You can splash rack or aerate the wine to dissipate some of the SO2. Also, given enough time it will dissipate with aging. Ideally, you should invest in a SO2 test kit or instrument to know when the SO2 level has decreased enough without overdoing it and leaving the wine under protected.
I think an SO2 test kit is my next purchase, and soon. Is it safe to leave the airlock off the carboy with maybe a towel draped over it in order to help the gas dissipate faster, or am I asking for trouble by introducing even more unwanted stuff, like O2?
Also, since my wine is free of sediment and crystal clear, and since I just racked it, could I give the carboy a good shaking or degass to speed up the SO2 dissipation, or am I stuck actually having to rack? If I need to splash rack, would you recommend doing this now, or wait a month or so?