Your meat grinder might develop rust, if not dried well or due to moisture where it is stored. This is a guide about removing rust from a meat grinder.
Here are questions related to Removing Rust from a Meat Grinder.
How do I clean rust off a metal meat grinder so that I can use it safely?
By Linda from Citrus Heights, CA
By judy  06/01/2010
I would use the earlier hint for cast iron pans. baking soda and vinegar. Should work equally as well with the meat grinder.
Do you have knowledge about this guide topic? Feel free to share a solution!