Tuna belly in olive oil Costera, presented in a 120 gr format. The tuna belly, also called ventrisca, is the juiciest and softest part of the tuna. This preserve is made fresh and by hand during the Costera or bonito fishing season of the Cantabrian Sea, which takes place in the summer months. It is produced by Conservas Costera, a family cannery from Gijón. Their offer combines tuna belly and olive oil in a gourmet preserve that highlights the softness of the fish and the care taken in its production. Preparation during the summer season and the artisanal process are two of this product's defining features. According to the information provided, the production process helps preserve its flavor and juiciness for the indicated 6 years of best-before date. A specialty from Conservas Costera to bring preserved tuna belly to the table.