Editor’s note: An earlier version of this article indicated that Ortega’s daily operations revolve around wood-firings, but his kilns are electric. It also incorrectly attributed the increase in plate production to the wrong machine. The story has been updated accordingly. You won’t find “Do Not Touch” signs in Marcello Andres Ortega’s studio and retail space, housed in a Quonset hut just south of downtown Dallas. The ceramics artist encourages visitors to the showroom to feel and hold his plates, bowls, and copitas—small cups used for drinking mezcal, sherry, and other spirits. Formed out of Texas clay and natural minerals and fused in one of the workshop’s five electric kilns, Ortega’s pieces are somehow simultaneously granular and smooth.But the appeal of the dinnerware extends beyond the…