Tested steaks: Scottish Aberdeen Angus, English Beef, Kobe Beef, American Porterhouse Steak, New Zealand Wagyu, German Wagyu, Japanese Omi Wagyu, Japanese Iwate Wagyu, Japanese Matsusaka Wagyu, Japanese Iga Wagyu, Australian Black Angus, Argentine Black Angus, Irish Black Angus, Italian Chianina, Austrian Simmentaler, Spanish Morucha, Galician Chuleton and Spanish Rubia Gallega -