The heat is on at National Presto Industries, but it's thermostatically controlled for even-cooking on nonstick surfaces. Under the Presto brand, the company makes and distributes small appliances and housewares, including pressure cookers, fry pans, deep fryers, griddles, coffeemakers, can openers, electric knives, and pizza ovens. The company pours itself into defense work, too, supplying ammo; cartridge cases; electromechanical assemblies; and Load, Assemble, and Pack (LAP) setup for regulated goods. Adding to the bottom line, its absorbent products unit makes private label and Presto brand diapers and incontinence supplies. The diversified company counts the US government among its largest customers.