The present invention is directed to a method of producing a malt beverage by adding thereto during the process an effective amount of a sugar polymer .It is also directed to the product produced thereby. Another embodiment is directed to a process of purifying a product, such as polydextrose having a glucose impurity by dissolving the product in water and adding yeast thereto, fermenting under conditions effective to convcrl the glucose to carbon dioxide and elhanol and separating the compound from the carbon dioxide and ethanol