NOTE: If you're not familiar with the Pressure Valve, or Float Valve on your Instant Pot, read your instruction manual to find where the valve's are located, and how to use them. When cooking the ground Sirloin, make sure you cook the meat well done. DO NOT leave any of the meat PINK. As you're cooking the Sirloin, crumble it or break it apart with a large fork, until it resembles small crumbs.