Porter & York’s  28 day aged, Prime Grade ribeye steak is rich, tender and full-flavored with generous marbling throughout. May also be referred to as Beauty Steak, and Spencer Steak. Porter & York’s Prime Grade beef steaks and roasts are fresh, and never frozen, from cattle raised on family farms in Nebraska. Only the top 2% of all beef is graded as Prime. With abundant and rich marbling content, these cuts are found only in the finest dining and grocery establishments.