Grass is the primary source of nutrition for cattle. Winter time comes with its hardships and hay becomes the main source of food. Grain finishing is non-GMO grains being fed to top off their usual free range grass or hay diet. We do not give a full diet of just grains at the end. They only get it about 90-100 days out from the butchering date. The cattle still have access to all the grass and hay they want. Grain finishing gives the meat a finer texture, sweeter taste, and more marbling. The grain feeding also helps with getting the cattle getting used to us as care givers.