Large, shallow blackened clay bowls with interior striations are used in cooking and for eating. They are used together with a small double-sided wooden pestle to grind pepper and vegetables like "garden eggs" (small eggplants) when making soups. These bowls may also be used as men's eating bowls (pԑԑ in Nafaanra). Though archaeological sites occasionally have potsherds with striated interiors, this particular blackened bowl form was not common until the 20th century when it was introduced from areas to the south. Potters in the region began to produce the bowls for sale both locally and at regional markets. By the 1980s and 1990s, this was one of the most popular pots made for market sale. Ahenkro, 1986.