Objective: To clean the garbage disposal.

Which of the following solutions is more sound in terms of naive physics reasoning?

Available options:
1). Once a month grind a dozen ice cubes in your garbage disposal. The ice will sharpen the blades and eliminates grease trapped in the faucet..
2). Once a month grind a dozen ice cubes in your garbage disposal. The ice will sharpen the blades and eliminates grease trapped in the drain..
2).