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.
Most commercial gelatin is produced from pig skin. The cleaning and processing of collagen results in a pale yellow dry powder -- an odorless, tasteless thickening agent. When dissolved in hot water then cooled, it forms a jelly. Granulated gelatin is the most common form of unsweetened gelatin. Unsweetened gelatin is typically soaked in a cold liquid for 3-5 minutes before dissolving it.