This is a coarse handbuilding clay originally designed for large-scale sculptural work. Contains 25% (30x80)-mesh grog making it suitable for pieces with large cross-sections. The high grog content also aids with thermal shock during the Raku process. It does not contain any fireclay, so it fires quite white at low temp (for Raku). Fires off-white in Oxidation and a warm tan-grey in Reduction @ Cone 10.