In this guide, we break down the basics for those just entering the expansive world of pottery. We interviewed Katie Mudd, the expert ceramicist behind Katie Mudd Ceramics, to discuss the differences between stoneware, porcelain, and earthenware, as well as how we can ensure a piece of pottery is high-quality — and why that matters. Ceramics can fall into one of three categories: stoneware, porcelain, or earthenware. Stoneware is an extremely durable, dense clay body that has a rock-like — or stone-like — texture when fired.
Portland, Oregon ceramist Katie Mudd explained that, because stoneware is less porous than earthenware, stoneware makes for an ideal material to create tableware and other vessels for eating and drinking.
The gray-colored clay that stoneware is made from is typically fired in a kiln between 2, and 2, degrees Fahrenheit. Once fired, stoneware is waterproof and does not need to be glazed in order to be waterproofed. Most stoneware is both microwave— and dishwasher-safe. Designer and ceramicist Katie Mudd thoughtfully handcrafts all of her dinnerware and planters in her Portland, Oregon studio from materials sourced from the Pacific Northwest.
Katie Mudd uses durable stoneware for most of her work and occasionally creates porcelain pieces as well. All of her pieces are microwave and dishwasher safe.
Co is dedicated to creating quality dinnerware, bakeware, and drinkware while showcasing the beauty of North African heritage stoneware crafts. Using a process that was developed over 2, years ago, local artisans are able to ensure that the tradition is thriving while using locally sourced and natural ingredients. Co highly values their artisan makers, treats them with respect, and provides economic and educational opportunities in exchange for their world-class craftsmanship.
Moonshine Design is a woman-owned company who handcrafts all of their stoneware pieces in Houston, Texas. All of their products are food safe and non-toxic, making them an excellent option for tea, coffee, or storing small household items.
Like stoneware, porcelain has a durable and dense clay body, but it is a more refined clay. Porcelain can be fired at extremely high temperatures around 2, to 2, degrees Fahrenheit, or 1, to 1, degrees Celcius. Stoneware pottery is fired at higher temperatures. The bisque or biscuit firing is normally around F C.
The glaze firing is between and F C and C. As well as being stronger than earthenware, stoneware is also denser. An easy way to remember this is that stone is tougher than earth. Porcelain pottery has a translucent appearance and is delicate. It is made from a refined clay and fired at a higher temperature than earthenware and stoneware.
The firing temperature of porcelain is around F — C. Due to being fired at such a high temperature, it is very hard and non-porous. It has a translucent appearance because vitrification at higher temperatures is more complete. This means that the porcelain piece has a more glass like quality.
Earthenware, stoneware and porcelain are made from different kinds of clay. Also, they are mixed with different minerals and fired at different temperatures. This accounts for their different properties. Some of the minerals that earthenware clay contains are quartz and feldspar. Quartz is a crystalline mineral and feldspar is a rock forming mineral. It also contains iron oxide or rust.
This accounts for its orange, red color. Before clay can be made into something artistic or practical, it has to be dug up from the ground. Earthenware clay has normally traveled far in moving water.
On its way, it picks up minerals before being deposited on a river bed. Known as secondary clay, Earthenware has traveled some distance and picked up many impurities on its way. It is these impurities that means it melts at a lower temperature than other clays. But do you ever stare at the mountain of dishes in your sink and ask yourself, Gee, would those be classified as pottery or ceramics?
Pottery is a type of ceramic, specifically containers made out of clay. There are three major categories of pottery: earthenware , stoneware , and porcelain. The resulting product is porous and coarse, which then gets glazed and fired a second time. Once heated fired to between and F and C , the clay is converted to ceramic and will never dissolve again. All clay is a ceramic material, but there are other ceramic materials, as well. Glazes are also ceramic materials because they permanently change during firing.
Industrial ceramics include a range of materials such as silica carbide and zirconium oxide. Pottery is generally considered to be containers made from clay. Both words derive from the Old English potian , "to push". When we consider how the potter pushes as they throw the clay on the wheel, it is easy to see how the process got its name. The term "pottery" may also be used as an adjective with some objects, such as small figurines.
In industrialized countries, modern pottery can be classified in two ways. There is commercial pottery or ceramics which are produced in factories, and there is studio pottery which is produced by individual craftsmen.
You may also hear of "art pottery," which may be either produced commercially or by an individual craftsman. Studio pottery studio ceramics can be quite diverse.
Production potters are most active in making large quantities of ceramic wares such as plates, platters, dishes, bowls, and so on. Production potters can sit down with a hundred pounds of clay and throw the same form all day.
0コメント