This study aimed to determine the effect of thickness on the quality and stability of smoked tuna (Euthynnus sp) fillet during storage in cold temperature (5 ± 2 oC). The treatment conducted was immersing tuna fillet in a liquid smoke solution at a concentration of 4% for 60 minutes at varied thickness (1, 1.5, and 2 cm) and then stored them in a refrigerator for 0, 2, 4, and 6 days. The r…