Two popular ones would be by breeding two Purebred parents or by. Seattle chef Thomas Dodds customers demand the best so the only steak on the menu is marbled tender and flavorful American wagyu. Washington State University National Wagyu Sire Summaries Rocking 711 Ranch With Wagyu 90 percent of it is prime or greater. Wagyu beef washington state . Seattle chef Thomas Dodds customers demand the best so the only steak on the menu is marbled tender and flavorful American wagyu. A research project conducted at Washington State University Decker et. Wagyu beef receives a 5 to 8 on the more stringent Japanese scale. More Detail High Quality Beef HQB The greatest feature of Washugyu is the Natural Umami flavor. 90 of Wagyu slaughtered in USA is classed Prime which is the highest and marbling is described as Slightly abundant to Abundant and has a minimum intramuscular fat content of 8 - 11. Clawsons assertions that Wagyu are uniquely built. If Wagyu beef is essential fo...