Craft production remedy the inefficiency of mass production through the elimination of waste. Craft production is a part of the informal economy in many cities, such as Istanbul, Turkey where the informal craft economy is a vital source of income for the Turkish craftspeople. Craft markets are highly dependent on social interactions, and verbal training which results in variations in the goods produced. Often, the craft economy consists of craft neighbourhoods, by which a community is structured on the craft activity present in the area. Often used in the household, many craft goods such as historic Muman Pottery in Korea, originated from
Saggar glazed and again placed in saggars prior to being glost fired. Ware may then be decorated, and placed on refractory "bats" and fired again such as in a muffle kiln. A "Saggar Maker's Bottom Knocker" was a name considered sufficiently amusing for it to be featured on the television panel show What's My Line?. Whilst saggar making was a skilled craft, bottom knocking was far less skilled, consisting of beating clay into a metal ring. From the twentieth century studio potters have used saggars to create decorative ceramic pieces. In this use saggars are used to create a localised reducing