You can do the same to the top of your piece with a sponge or a piece of wet newspaper.
Using a wooden or rubber rib, smooth the edges of your piece as your wheel spins. You can do the same to the top of your piece with a sponge or a piece of wet newspaper. You may also use a sponge to absorb any excess moisture, especially on the inside of your clay vessel. Any excess moisture can cause your clay to dry unevenly which can lead to cracking and warping. Cut your pot off the bat using a wire tool—remember to keep the wire taught on either side of your pot. It helps to make the wire cutter smaller by twisting it around your hands like you would floss around your fingers. Add water onto the surface of the bat and slowly slide the wire across the bat under your piece. Wait until your piece is leather hard before repairing, trimming, or adding any surface design.