Pitchers are pottery that has been broken in the course of manufacture. Biscuit (unglazed) pitchers can be crushed, ground and re-used, either as a low-percentage addition to the virgin raw materials on the same factory, or elsewhere as grog. Because of the adhering glaze, glost pitchers find less use.[1][2] The crushed material can also be used in other industries as an inert filler.

Archaeologists call ancient pitchers sherds or ostracons; shards or ostraca.

References

  1. ↑ In USA, Lower Limits For Leaching Of Lead From Ceramic Pitchers. Industrial Ceramics. No.840,1989, p.517
  2. ↑ Dictionary of Ceramics 3rd edition. Dodd A., Murfin D. The Institute of Materials. 1994.


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