This prime rib is American Wagyu Black Grade, rated 6 to 8 on the Japanese Beef Marbling Score (BMS)
Beef sold in the U.S. is graded by the United States Department of Agriculture (USDA). There are eight total grades and the top grade is USDA Prime.
All Snake River Farms American Wagyu beef grades above Prime. Special breeds of cattle like Japanese Wagyu are capable of producing marbling beyond their American counterparts. To grade this high level of marbling, we adopted the Japanese Beef Marbling Score.
Using BMS, beef marbling is measured on a scale from 1 to 12, with a 1 being Select beef and a 12 being the highest level of marbling possible.
BMS 4 to 5 USDA Prime
BMS 6 to 8 SRF Black Grade
BMS 9+ SRF Gold Grade