How to Prepare clay for wheel throwing
Georgia Tech resident pottery instructor, Trip, describes how to knead clay and get it ready for use on the wheel. First you need a piece of soft scrap or fresh clay. When kneading, or wedging the clay, try to force out all of the air bubbles. The kneading board should help to absorb excess moisture. Test the kneaded clay by slicing it with a wire cutter to check for air bubbles.