However, more recent investigation of the Asar-dere area has shown that the area contained a large waste disposal site alongside multiple hearths and kilns all dating from the earliest occupation phase. The content of the waste shows that ceramics were produced early in the settlement's history. Other finds from this first phase of occupation (from the eighth until the beginning of the ninth century) include those connected with iron processing, such as slag, charcoal, ash, and pig iron. Fragments and solid droplets of glass suggest glassmaking are also found from this same period. These types of finds are not extant in this area in the tenth and eleventh centuries, when it was instead occupied by numerous small and primitive grubenhaus dwellings. According to Henning;