I’ve found a lot of uses for vinegar in my time, but this is by far my favourite - probably because my garbage disposal smells like gym socks…in a sewer…with a skunk no matter what I do.
First, fill your ice tray with vinegar. You’ll only need a few cubes, really. Once frozen, feed them down the disposal, grind them up, and then rinse with cold water. I found this technique worked wonders!