Notes from Winemaking Advice Hour March 20, 2020 We used 5.0 micron cartridge filter on a white blend (Sauvignon Blanc, Viognier, Vidal, Seyval) wine. Prior to filtering, we used bentonite / gelatin fining. We racked the wine 2 times (over 2 months), and then we rough filtered with a 5.0 micron cartridge filter (poly […]