| Monthly Tech-Tip  | No tracking! No ads!  | 
Three mugs. Dry. Bisque fired. Glaze fired. Notice the shrinkage at each stage (these were the same size in the dry state).
| Glossary | 
Bisque
 Potters and some manufacturers fire ceramic ware twice, once to prepare it for glazing (call bisquit firing) and the second time to melt the glaze onto it.  | 
| Glossary | 
Vitrification
 A process that happens in a kiln, the heat and atmosphere mature and develop the clay body until it reaches a density sufficient to impart the level of strength and durability required for the intended purpose. Most often this state is reached near zero p  | 
| Glossary | 
Sintering
 A densification process occurring within a ceramic kiln. With increasing temperatures particles pack tighter and tighter together, bonding more and more into a stronger and stronger matrix.  | 
| Glossary | 
Firing Shrinkage
 During drying, clay particles draw together and shrinkage occurs. During firing the matrix densifies and shrinkage continues. More vitreous bodies shrink more.  | 
| Firing Schedules | 
Plainsman Electric Bisque Firing Schedule
 Three-step to 1832F  | 
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