Already in 1772, the quality of Potworks' production had fallen to the point where a visitor does classify it as «imitation of the Queen's ware, but it does not come up to the original, the produce of Staffordshire.»
Sejak 1772 kualitas produksi Potwork menurun tajam sampai para pengunjung memasukkannya dalam kelompok "tiruan perlengkapan Ratu, namun tidak mirip dengan aslinya, produksi Staffordshire".