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.
Of course, other factors give each animal its distinctive smell. Older animals have kidneys that have lost some of their efficiency and as a consequence, older animals tend to have the worst smelling urine. Urine from male cats also tends to smell worse than female urine, due to the presence of certain steroids.