Products for use in producing alcoholic beverages including: enzymes and enzymatic preparations; tannins; acids including citric, tartaric, malic, tannic, succinic, lactic and ascorbic acids; finings including irish moss, bentonite and isinglass; nutrient salts; water conditioners including hardeners and softeners; and stabilizing agents including agents for sterilization of musts and finished alcoholic beverages, agents for preventing re-fementation and oxidation in alcoholic beverages and beverage preserving agents