The beads' names are quite explicit regarding the techniques used. However, here are some explanations related to each kind:
1. Glazed Beads (GSB, GTB, GFB) all of them have smooth surface - after been hand-shaped they are fired at 900 degrees. Then using painting brushes of different sizes we apply the glazes all over the surface. Finally, we fire them again at higher temperatures - between 1050 and 1200 degrees Celsius, depending on the used glaze.
2. Glazed Relief Beads (GRB) - The main characteristic feature is that for their decorating we use clay stamps. This is a very old technology, utilized by the people that used to live on our lands 6 000 BC. The clay-stamps found all around the Mediterranean area were the tools used for this technique and are called pintaderas. Similar techniques were widely used also in Schumer, Mohenjo-Daro, and other places, as well.
We make them in this way: we hand shape them, and then we apply the engravings utilizing various clay stamps (flat or round) with different patterns. After they all dry away, we fire them once at a temperature of 900 degrees Celsius. Then using painting brushes of different sizes we apply the glazes (of various colors). Finally, we fire the products again at higher temperatures - between 1100 and 1200 degrees Celsius. The difference here is that we use color transparent glazes so that the carvings under the glaze be seen. Unfortunately, the transparent glazes exist only in these colors (Green, Amber and Indigo). This fact restricts us in the variety of colors of this type of beads.
3. Rubbed Relief Beads (RRB) - these are also hand shaped, but the engravings are applied using special tools that imprint on the wet surface subconcave lines and dots. After the first firing at 900 degrees Celsius, we put the glaze on the beads, then using a small cloth remove the glaze from the surface in this way that it remains only within the ornamental lines and dots. Finally, we fire them again at higher temperature - 1200 degrees Celsius.
4. Carved Beads (CB) - first, they are hand shaped; then using a sharp tool and when the clay is still soft we engrave the lines of the ornaments. After they all dry away, we fire them once at a temperature of 900 degrees Celsius (the so-called bisque firing). Then using painting brushes of different sizes we apply the glazes (opaque glazes of various colors). Finally, we fire the products again at higher temperatures - between 1100 and 1200 degrees Celsius.
5. Unglazed Beads (UB) - we use the same shaping techniques used for making all of the glazed beads but in this case we simply don't glaze them and fire them only once at temperature of 1100 degrees for Red Brick, and 1200 degrees for Ivory and Ebony. This is the reason for their smaller price as compared to all other beads.