Bisc, biscuit, bisque ware, bisque fired, and biscuit are variations of this terminology. Both the preliminary firing procedure and the finished ceramic piece are referred to as “fired.” The clay is fired at a temperature that causes physical and chemical changes. Water molecules that are connected to individual clay particles are pushed out and fused, converting them into a single piece.
The intermediate step in the glazing process allows bisque ware to absorb water from the glaze solution, allowing the glaze components to attach to the piece while maintaining its shape. Some items are never fired over this temperature. Hence they are considered “low-fire.” As a result, they are usually less durable.