How To Clean Coffee Cups. Wet the inside of the mug. · now empty the mug, scrub it with the sponge and dishwashing soap, and then rinse it with the water.

· leave the cup for 10 to 15 minutes and let the chemistry do its work. To start, fill your pot or kettle with hot water and put it on the stove. Step 4 (:43) — pour out mixture.





