ArticleFree SO2, Bottle Drop, First SO2 Addition, and Oak SanitationWritten by Alison CroweA winemaker asks for some pointers on when to test for sulfite on their wines using their new sulfite testing kit. Also, learn about curing wine plating, basic equipment required for a winemaker making the jump from kits to fresh grapes, and preparing oak for wine.Already a member? Log InYou'll Also Like Article MEMBERS ONLY Top Me Off, Rules of Fining, and Achieving Cold Stable Wines Get some pointers and considerations a winemaker needs to keep in mind when topping off your aging wine vessels. The Wizard also answers questions on fining agents and malolactic fermentation after cold stabilizing a wine. Article MEMBERS ONLY Chlorine Conundrum & Country Wines: Wine Wizard I never use any chlorine-containing cleaning compounds in my winemaking and don’t recommend it to anyone. There are plenty of alternatives for cleaning, one of my favorites being sodium percarbonate.