Most closures are packaged pre-sanitized, usually with sulfur dioxide in the sealed bags that come from the manufacturer.
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Oxygen Ingression, Volatile Acidity Interventions, Sorbate Question, and Malolactic Timing
Sometimes we get several questions that revolve around a similar theme. The Wine Wizard had several questions this go-round on volatile acidity and malolactic fermentation. She provides some specifics for winemakers who have bigger picture problems on their hands.
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What is the best way to store oak barrels that don’t have wine in them? Get the answer from the Wine Wizard, as well as her advice for a case of oversulfited wine, removing white film from a glass carboy, and five tips for a rookie winemaker.