Jack bean sprouts are rich in plant-based proteins, which possess additional functional properties. However, no studies have reported using different packaging to ferment tempeh to increase the amino acids and nutritional properties of jack bean sprouts. The present study aimed to determine the effects of fermentation time and different packaging materials on the amino acid, proximate, and antinutrient concentrations of tempeh from jack bean sprouts. This study used experimental methods with two factors: fermentation time (36, 48, 60, and 72 h) and packaging material (plastic, banana leaf, and teak leaf). The results showed that the fermentation time contributed to significant changes (