These beautiful tuna fillets should be the star ingredient of your dishes! IASA tuna fillets are born from a rigorous selection of oceanic yellowfin tuna. The whole fish is slowly steamed to preserve its moist tenderness and delicate flavor. The IASA team skillfully clean, break down, and fillet the fish with the utmost care, entirely by hand. The artisans select the most precious, compact fillets to hand-pack into glass jars and fill them with olive oil to preserve and enhance the tuna’s texture and taste.