Ground beef already formed into patties or separated into smaller quantities take less time and defrost quicker. For instance, 1/2-inch (1.25-cm) ground beef patties that were frozen separately usually take about 10 hours to defrost.
Gelatin is a protein substance used to thicken liquids. It does not have a color, smell, or taste. It comes from boiling animal tissues such as beef bones, cartilage, tendons, and pig skin. Gelatin is used in many kinds of food products and drug and supplement products.
Gelatin is not made out of pork, it is made out of the bones, hooves and skin of animals. Different animals give us different yields of gelatin. Pig gives a very good yield, probably the best, but since it is forbidden in both Judaism and Islam, gelatin manufactures sometimes avoid using it, or at least make separate plants just for pig.