Tan or reddish pottery fired at a low temperature, below 1100C In an unglazed form, its porosity prevents it from holding liquids
> Earthenware is the most porous of the three main types of ceramic ware, having a porosity of more than 5% after firing Most of the clays used to make earthenware are only suitable for firing to a relatively low temperature, between 800-1100oC After firing the ceramics are permeable, and vessels are therefore frequently glazed The most common glazes used on Chinese earthenwares are lead-fluxed glazes In China, earthenwares are designated tao to differentiate them from high-fired wares such as stoneware or porcelain
bodies fired at temperatures below cone 1 (2110oF) that remain somewhat porous and open in structure The vast majority of the world's pottery has been earthenware because of the wide prevalence of earthenware clays and the relative ease of reaching the necessary kiln temperature Two examples are terra cotta and whiteware (sometimes referred to as talc body)
(German-Irdenware, Topferware) - A colored mass that is porous (absorbs liquid) until is is glazed It is fired at a temperature around 1,000°C
- porous ceramic material fired to only about 800°C (1500°F); sometimes made impervious to liquids by the addition of a lead glaze, as in Hafner ware and folk pottery; see stoneware
Tan or reddish pottery fired at a low temperature, In an unglazed form, its porosity prevents it from holding liquids
The oldest form of dinnerware Contains a number of impurities, making it fragile and absorbent
white, tan, or reddish pottery fired at a low temperature Also any type of clay which has a low firing range
Pots that are porous when unglazed Usually fired at low temperatures Earthenware is softer and more easily damaged than stoneware Example
clays are formed by the weathering of local rock formations but some are glacial in origin They are usually red or tan in color Earthenware clays are primarily used in the manufacturing of bricks and industrial tiles since a fairly strong bond is formed at moderate temperatures (below 2000 degrees F)