Tlhaloso: Mese ke metsi a entsoeng ka grist (a silafalitsoeng ke malt kapa lijo-thollo) a susumelitsoe ka metsi a belang ho etsa hore ho be thata. Mefuta ke mokelikeli o tsoang ho setoto mme o belisoa ka ho hlapa (metsi a nang le joala 'me a sebelisetsoa ho senya whisky).
Sour Mash ke eona e tsebahalang ka ho fetisisa 'me ke mokhoa o sebelisetsoang ho etsa whiskey ea bourbon le Tennessee . Mokhoa ona lenane le lenyenyane le seng le ntse le koetsoe (hona joale le bolila) le tšoaroa ka ho belisoa ha pele le ho sebelisoa leboteng le latelang, kahoo ho tsoelapele boleng ba tomoso e sebelisoang.
Ka lehlakoreng le leng, mafura a monate a sebelisa tomoso e ncha e koahetsoeng ka liphahlo tse sa bulehileng pele e fuoa distilled ho fana ka tatso e ncha, e monate ho fapana le ea bolila.