I like ground goose breast but have broken a few grinding blades on the occasional steel pellet that just couldn't be found. I recently began using a tool that locates those steel pellets that otherwise defy detection. It is the Wizard II metal detector and costs about $20 at many hardware stores. I found mine in the section that has electronic stud finders and the small laser levels. Give it a try to find suspected pellets if you're worried about breaking a tooth or ruining your meat grinder. I have no connection to this company but just think it is useful for this purpose and wanted to pass on the information.