“Buzzonaglia di tonno rosso” (bluefin tuna) in cold-pressed organic sunflower oil is the product consisting of steamed, hand-processed portions of fish (Mediterranean bluefin tuna) placed in a special glass container, closed after filling with the preserving liquid. The product is stabilised by means of a thermal sterilisation treatment capable of irreversibly inactivating enzymes and micro-organisms that may alter the food.