ArticleLate Malolactic, Wine Kit Ingredients, and Color QuestionsWritten by Alison CroweYour Zinfandel probably had a good reason (in the wine’s opinion, anyway) why it didn’t go through ML fermentation.Already a member? Log InYou'll Also Like Article MEMBERS ONLY Copper Sulfate Solutions: Wine Wizard Your Zinfandel probably had a good reason (in the wine’s opinion, anyway) why it didn’t go through ML fermentation. Already a member? Log In Article MEMBERS ONLY Cork Variability, MLF Question, pH Testing, and Aceto Problems A concerned reader asks the Wizard why commercially-purchased wines might have their corks raised. She also answers questions on metabisulfite use before malolactic fermentation, when to re-test for pH, and dealing with Acetobacter issues.