Once you know how to do it, it's easy to distinguish between bad and good quality bluefin tuna. You just need to know the details that professionals look at when buying it, use your intuition and the senses of sight, smell and taste. In this article, by the hand of Jaime Sirat, co-owner of Taberna La Morena in Tarifa, we are going to teach you how to use these elements so that in a short time you become an expert in identifying authentic quality bluefin tuna.