C&S Suet Treats are produced by melting the highest quality beef kidney fat, blending a variety of seeds, nuts, and fruits that are then poured into a tray and allowed to harden. Our bird food will become soft and pliable at 100 degree fahrenheit if exposed to extreme heat during shipping and storage, but will return to normal hardness again at room temperature. The quality of bird feed and special processes allow suet to be fed year-round resulting in all-season suet feeding success for garden birds by our consumers.