Bisque fired stock. Ahn throws three different types of clay bodies: white, medium with speckled, and a darker clay. “For a while I was using Standard clay, which is out of Pennsylvania,” she says, “but there were some problems with cracking. I think for a while in the beginning I was just trying to make anything work. After making hundreds and hundreds of things, you’re like, ‘I can’t have half my pieces crack. I need a more stable clay.’ You don’t figure those things out until you’ve fired multiple times.”