MASTRO'S dough-proofing equipment is strong, durable units designed to give you years of trouble-free operation. Our Pizza Proofers feature a high-quality, stainless steel construction and heavy-duty design. Our roll-in dough proofers are designed to keep your energy expenditure to a minimum. The proofer box walls are two inches thick and foam-insulated to prevent heat and moisture loss. These pizza dough-proofer machines are available in reach-in and roll-thru configurations in a variety of capacities.