"The Anatomy of a Stein"
First a few important definitions:
Ceramic is the clay.
Ceramics is the "art" of making items of clay.
A Ceramist is the artisan who creates the pottery or in our case, steins!
A Stein or a Mug?
Molten pewter would have flown into this hole to secure a lid.
This is an uncommon rectangular dibbie, seems to be a superior method to me.
A matter of size:
.125L = 1/8L
.25L = 1/4L
.3L = 3 tenths
.4L = 4 tenths
.5L, 0.5L or 0.50L = 1/2L
1L = 1L
Let's look at the finish:
The gloss finish is just that, glossy. It is also very smooth, with a glass-like feel. This thin layer is formed on the surface of the fired ceramic piece. Glazes are a finely ground mixture of mineral and man-made powders prescribed to melt and flow at a specific temperature. Glazes are typically mixed with water, suspenders, and hardeners to make them harden on drying and produce a suitable consistency for application by painting, dipping, or spraying. Some clay blends will bond better with glazes at higher temperatures, this can be termed as "slip glazes". With gloss finishes comes crazing. Most folk view crazing as "character", I tend to agree.
Salt Glaze finishes take a little more work. Rather than adding a finish to the mug, a chemical reaction draws the finish from within the clay. While firing at a high temperature, rock salt or sodium is introduced to the kiln. In days past the salt was thrown in by hand. Today, with controlled science, sodium fumes are injected through ports in the side of the kiln. At this high temperature, the silica (sand) and alumina is drawn out of the clay. These chemicals melt together to form a matte finish. The best part of salt glazing is that by changing an ingredient, such as the size or type of the salt or the amount of sand in the clay, will change the finish of the mug. Colors can range from cream to grays and even a red tint can be produced. I especially enjoy mugs made with higher sand content, this will produce a bumpy "orange peel" affect.
A clear difference.