The Staub glass lid cocotte is unsurpassed for slow-cooking meat and vegetables to tender perfection, and for simmering hearty stews and soups. And with its innovative tight-fitting borosilicate glass lid you can conveniently monitor your cooking without removing the lid, keeping moisture locked into your dishes. Cast iron possesses exceptional heat-retaining qualities, so the pot heats evenly throughout. The textured black matte enamel interior ensures exceptional browning and requires no seasoning.