Compress the rim of your bowl using a wet chamois. With the wheel at about quarter speed, stretch the chamois across the rim, fingers against the wall, and push downward slightly, without moving your fingers themselves downward. Lift up and away slowly.
Sponge up all liquid that has accumulated at the bottom of your bowl. Liquid left in the pot will almost always cause cracking as the pot dries.
Trim the outer bottom of the bowl, removing excess clay. Stop the wheel to cut through the trimmings, then gently rotate while lifting the trimmings away from the bowl. You can do a secondary trim, producing a slight undercut at the bottom sixteenth to eighth of an inch. This undercut will give the pot a visual lift and finished look.
