Wagyu beef is one of the most popular keywords out there and it is a complicated subject. The word "Wagyu" translates to "Japanese Cow" (Wa means Japanese and gyu means cow). Technically, Wagyu beef should only be used when talking about cattle raised in Japan. However, at some points Wagyu genetics made it out of Japan, to the US, which then exported it to Australia... and now we have “Wagyu” beef from all over the world.
What makes Wagyu beef different is its genetics, it has a very particular flavor profile and it it is much more prone to mabling than your other cattle breeds such as Angus, Hereford, etc...
Cows are beautiful living, breathing animals and their envrionment is almost as important as their genetics. So a Wagyu cow raised in say Colorado is going to taste very differently than a cow raised in Japan or Australia. Moreover, the system for grading the quality of Wagyu is not standarized... America has one, Australia has one and Japan has one (read more about how the world grades beef). In order to help our customers, at Meat N’ Bone we came up with a blend of these systems to simplify it for our consumers.