ArticleFun With Filtration, When To Harvest, and Transporting WineWritten by Alison Crowe. . . a lot of sediment we find in wines actually forms after the wine is bottled, and is nothing that filtration can control.Already a member? Log InYou'll Also Like Article MEMBERS ONLY Stuck Fermentations, Using Tartaric Acid, and Cooking With Wine I find that when sugar is that low, the process of re-starting actually lowers the overall quality and you’re better off bottling slightly sweet (sterile filtered). Article MEMBERS ONLY Perfecting Pyment, Vinifera Vines, and Over-Yeasting . . . you could also buy some powdered grape tannin, use oak chips, or even use a cup of strong black tea to add some tannin backbone to the wine if it’d be tough for you to obtain grape skins.