The raw jugs are hand-turned in porcelain, Bone China. They are glazed inside and on the edge, while the grooved surface is rough / unglazed. The grooves are a long spiral that is turned from top to bottom.
Dimensions of the pitchers:
Small: 300 ml.
Medium: 550 ml.
Large: 750 ml.
The Raw range is dishwasher-safe and microwave-safe.