Be sure to cut the peels into small enough pieces for the to handle, then turn it on and run water while the peels grind.
Let the mixture bubble up and sit for 5 to 10 minutes, then turn on the disposal and run water to distribute the mixture throughout the
Another way of cleaning requires only hot water and dish soap.
Using the sink stopper, plug the disposal drain and add a generous squirt of dish detergent to the sink.
As you release the sink stopper, turn on the disposal and let the entire sink contents drain while it runs.