Grape dinnerware

Bone china

Bone china is a kind of porcelain body originally used in the UK in which calcined ox bone, bone ash, is an important part. It is differentiated by supreme whiteness, strength and translucency. grape dinnerware may be an example of this process.

The first use of bone ash in ceramics is associated with Thomas Frye in 1748 in which he used it to introduce a type of soft-paste porcelain. In At the close of the eighteenth century, Josiah Spode undertook further developments, and duly made it popular, by combining it with China stone, china clay and kaolin to compete with the imported Oriental porcelain.

The original basic formula of four parts china stone, six parts bone ash, and three and a half parts china clay remains the standard English body.

Bone china production commonly makes use of a 2 stage firing process where the initial "biscuit" is fired without a glaze at 1280