If the ventresca, they say, is the best part of the tuna, imagine the white tuna in size 270. Its cutting, cooking and manual cleaning require a lot of skill and attention being such a delicate, fragile part with such a soft and mellow texture. This is probably the reason why it is the most appreciated canned tuna. This size of white tuna belly in olive oil is perfect for a group of 4-6 people, on a platter of roasted peppers, a tomato or simply chopped spring onions. Juicy, sliced and delicious pieces