These Kobe-style beef hamburgers are free from hormones, antibiotics, and other additives. Kobe grass-fed beef patties are best known for their flavor, texture, and tenderness. Get high-quality restaurant-style burgers at home. Grazed 100% on Grass. These Kobe burgers are never fed grains. High in CLA'S (conjugated linoleic acid) that only comes from grass finishing.