ArticleAlternative Sweeteners, Pomace Compost, and Stuck FermentationsWritten by Alison CroweIf you add some kind of sweetener that is fermentable (table sugar, grape concentrate, maple syrup, honey, etc.) you risk an uncontrolled re-fermentation in the bottle, which is never fun.Already a member? Log InYou'll Also Like Article MEMBERS ONLY Brett in the Winery, Hangover Myths, and Grapes In Albuquerque Brettanomyces is often an ambient microbe in the air we breathe, but that’s no reason to go inviting concentrated and healthy stocks of it into your cellar. 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.