For some time I discovered crystals in some glazes that I kept in my (enclosed) glaze buckets. These are self-designed glazes of kaolin, quartz, frits, wollastonite, etc. Mixed with water and peptapon.
Some glazes had small crystals (felt a bit like sand), but some glazes developed large amounts of crystals. In some cases as large as a five euro cent (see photo). These crystals made it impossible to glaze (because glaze spray got plugged), so I started to look for a solution.
