Throwing is the process of transforming the centered cylinder of clay into a bowl (or similar form) by using a potter's wheel.

It starts with creating a hollow cylinder and then using your fingers, both inside and outside, to gently squeeze or pinch a ridge at the bottom which is then slowly lifted upwards (while taking care not to squeeze the walls) .  Water is added every so often to keep the clay smooth and workable.

As the process is repeated many times the cylinder gets higher (and thinner) and then you can create the shape by pushing the inside with a sponge or by changing the relative position of the inside and outside fingers.

The process requires a slow wheel speed and steady concentration.