I really do want to keep my grandmother's old silverware set, but many of the pieces are discolored and rusty. Rusty. I'm actually afraid this might make me sick if I use it.
Let me know if I should just throw it out
Here’s a service
I've tried vinegar and salt. It works but you'll need to make sure you wash the vinegar off very well otherwise you get green spots later. Btw, silver does not rust. You might have a set that's plated as opposed to being all silver. If that's the case then it has very little commercial value. But it seems to have a lot of sentimental value to you. You might want to get it replated. It's not cheap to do though.
https://www.youtube.com/watch?v=BhtGxujrLTc
As others have pointed out. Silver doesn't rust though.