Tips for making the walls of a pinch bowl even

It’s easy to overlook the fact that your pinch bowl isn’t uniform until you touch it and find one side bulges out, or another side feels very thin and pliable. Because any pressing of the fingers displaces clay, minor inconsistencies add up fast. Rather than focusing solely on the shape, check how much clay remains where your fingers are pinching. The wall can be made more uniform in stages than it can be corrected once one part of the bowl has already thinned too much.

Take a small portion of clay and press your thumb into it without reaching the bottom. Leave enough clay at the bottom for the base to be formed. As you pinch the wall, avoid squeezing the same spot over and over; instead, work around the form and rotate the bowl slightly after each pass. This way, you won’t put too much pressure in one place, and you’ll have opportunities to compare one part of the wall to another.

Use your fingers to sense the thickness. Hold the wall between thumb and forefinger and see how much clay you’re feeling. Move around the rim and then lower the pinch to compare. If one section seems thicker, gently compress and raise it instead of squeezing once and assuming it’s fixed. If a section seems thin, leave it alone. You may be tempted to keep squeezing just to fix the unevenness, but continuing to do so will simply make the wall weaker and the form less regular.

Water also impacts how well you can gauge thickness. If the clay is too soft, an extra squeeze can easily cause it to thin too much. If too much water is applied with a sponge, the clay becomes slippery and weak. Apply water sparingly, and allow the clay to give a little resistance against your fingers. If the rim droops or the bowl collapses as you rotate it, further pinching can do more damage. Letting the clay firm up a bit before you continue to shape it can make the job easier.

Make several pinch bowls of similar size to practice. Don’t focus on decoration. Make one in the usual way, then examine the rim, base, and walls. Make a second, and rotate it more often to compare the thickness as you go. For the third, use a light touch and make more passes. Setting the bowls side by side will help you see differences in their walls more clearly than working on one bowl until you can’t remember what it originally looked like.

Finally, examine the rim, which is often where you can tell how the pinch worked below it. Look at the bowl from the side and turn it slowly. Any dip could mean one part has been squeezed too much, and any bulge could mean more clay needs to be removed. Gently compress the rim to level it out instead of pulling it upward to straighten it. Then set the bowl down and make sure the base sits flat. A wall that appears to be even in thickness won’t help if the base is so thin or warped that the bowl can’t sit steady.

The improvement you’re looking for is seeing yourself make fewer mistakes later. Your bowl might still be slightly asymmetrical, but the walls should feel more consistent around the form, and the form shouldn’t change as you reshape it. Before setting your bowl down to dry, run your fingers around the inside and outside once more. If you can move your fingers around the whole bowl without suddenly encountering a thick patch or a thin one, you are learning to control your pinch pressure better.