Salak is a climactic patterned fruit with shelf life of only 10 days and post-harvest milk rate 30%. Therefore, to avoid damage, one way process it into fermented salak juice. This study used Group Randomized Design (RAK) two factors. The first the microbial type, Saccharomyces cerevisiae ATCC9763 R5I3 isolates, while second cell concentration: 0%, 5%, 10%, 15% (v/v). parameters observed includ...