Tuna is one of the most well-known fish in our seas. Its capture is regulated by fishing regulations to prevent its extinction. For this reason, Cateringross, for the BigChef tuna in olive oil, turns to one of the most reputable companies in the sector, Callipo of Pizzo Calabro, a company that has been processing tuna since 1913. They do so with exclusive techniques such as long aging to release its unmistakable fragrance at the time of consumption. Moreover, when tuna is processed into fillets, only 50% of the cuts are used, which are hand-cut and filleted. An exclusive product for Cateringross and its restaurant clients during the summer period, when tuna, due to its organoleptic characteristics, becomes one of the main ingredients in the kitchens of almost all Italian restaurants. Its versatility allows it to be used in many summer recipes, starting with rice salad and ending with tuna in a salad of peppers, capers, and mint. Callipo is a leader in the tuna in olive oil sector. Here, the tuna arrives whole and is entirely processed in Italy, at the Maierato (VV) plant, undergoing a meticulous selection process. BigChef Tuna is a very genuine product, as it is simply steam-cooked without the addition of preservatives and flavors. It is aged for a long time to mature and release its unmistakable fragrance at the time of consumption. A good cut should be whole, compact, and covered in clear oil. The protein values of the tuna remain intact during the processing stages.