Category: Glaze, Ash, Author: Clara Giorello, Notes: Original japanese recipe ^9/10/11: Hagi glaze uses twice rice straw ash than Nuka glaze. Soda feldspar 1 part, rice straw ash 2 parts, wood ash 1 part. Vinod Chettur recipe for ^6: use silica (for rice straw ash) + 1/2 part ulexite. After doing some testing at ^5, Potash Feldspar revealed a better melt than Soda Feldspar. I use wood ashes that have a lower melting temperature than "normal" ones. Maybe you will need ...