Turn on your kitchen sink as well as the sink incinerator. Drop a cup of ice cubes into the disposal to sharpen the blades. Follow the ice cubes with a lime, pushing it into the disposal using a wooden spoon for safety. The lime will completely deodorize the sink incinerator.
Turn off the sink and disposal. Add 1/2 cup of baking soda into the sink, wait a few seconds, then chase with 1/2 cup of vinegar. The bubbling action you will notice is a reaction that will not only clear mineral deposits, but kill bacteria as well. Wait several minutes until the bubbling stops.
Pour some boiling water into the sink, rinsing away all the residue and completing the sanitation process.