Coffee Lovers USA Blog

What is Stoneware?

Home :: Stoneware Mugs :: Product Information :: What is Stoneware
In order to answer the question, "What is Stoneware?" we have to establish some basic
facts first.

Stoneware's maturation temperature ranges from about 1200 °C to 1315 °C (2192 °F to
2399 °F). In essence, it is man-made stone. One widely recognized definition is from the
Combined Nomenclature of the European Communities, which states:
"Stoneware, which, though dense, impermeable and hard enough to resist scratching by a
steel point, differs from porcelain because it is more opaque, and normally only partially
vitrified. It may be vitreous or semi-vitreous. It is usually coloured grey or brownish
because of impurities in the clay used for its manufacture, and is normally glazed.

In contrast,
earthenware is fired at lower temperatures and is not impervious to liquids.
Porcelain, which some consider to be a type of stoneware, is distinguished as being whiter
than stoneware and always vitreous.  Some porcelain bodies are translucent after firing.
Firing a piece of pottery to too high a temperature will result in warping or melting.
Vitreous clay bodies can be made at different temperatures ranges, but they are typically
fired in the stoneware/porcelain range. Fired stoneware absorbs up to 5% water, porcelain
0%, and earthenware up to 10%.  Earthenware, when moist, is typically not freeze resistant.

Clay refers to  a group of minerals that generally exhibit plasticity when mixed with water,
and which chemically primarily consist of alumina and silica. Potters refer to combinations
of clays mixed with other materials as clay bodies. Different kinds of clay bodies are created
by mixing additives, such as feldspar, grog, quartz, flint, many other minerals are used and
these can include spodumene, wollastonite to modify clays.

Clay bodies can thereby be formulated to fire at a range of temperatures. Darker clays often
contain iron and other metal oxide impurities. The clay used for porcelain and white
stoneware clay bodies contain very little of these impurities.

So what's the difference between Stoneware and Earthenware?

The bottom line is that if one is looking for a good set of dinnerware that is
affordable, can hold up to high temperatures, seems nice and is safe to
microwave or put in the dishwasher, stoneware is what one needs.
This little chart will help you know the difference right away!
Stoneware
Eathenware
Impervious to water
Not impervious to water
Chip resistant
Chips easily
Color: Buff or terra cotta
Color: white
Feel: textured
Feel: chalky
Look: like pottery
Look: rough white
Looks great undecorated or decorated.
Can only use when decorated.
Can withstand high/low temp.
Cannot withstand high/low temp.
Oven safe
Not oven safe
Suited for household use.
Suited for decorative use.
Is not porous
Is porous
Bottom is unglazed
Bottom is glazed
gold bar
Be sure to visit our Stoneware Lovers USA site with Beautiful stoneware selections!
Contact  ::  About Us  :: Privacy  ::  Links :: Gift Certificates
Copyright 2007 - 2017 coffeeloversusa.com
Sign up for PayPal and start accepting credit card payments instantly.
Hosting by Aabaco Web Hosting
PayPal
Mara Tea Pots
A work of Art!
We accept
all major
Credit Cards!
Follow Us On:
Coffee Lovers USA Facebook
Coffee Lovers Usa Espreso Break
Stoneware
Coffee Lovers USA
Mara Stoneware Tea Pots