|Description: A crock with a wide mouth and red earthenware body which is covered with a dark brown slip.
Most earthenware produced in Ontario was usually glazed, a glass-like coating that made the pottery less porous, easier to clean, and more attractive. Basic ingredients included silicates, borates, and a flux. The exact glaze mixture depended on the source of the components, the clay body of the pottery, and the firing temperature. Redware is pottery made from red firing clay that is fired in an oxygen-free atmosphere. In Ontario, most local clays fire to a redware or yellow ware. See: David L. Newlands "Early Ontario Potters: Their Craft and Trade" (Toronto: McGraw-Hill Ryerson Ltd.), 16, 214.