GraniteWare Heavy Gauge 21 Qt. Canner with glass lid, jar rack, and temperature indicator knob. Porcelain surface and steel core for excellent heat distribution. Perfect for preserving fruits, pickles, relishes, jams, jellies, marmalades and salsa. Holds up to 7 quart jars, 9 pint jars or 12 1/2 pint jars. Flat Bottom for all stoves. PTFE/PFOA Free.