May 2026: We are continuing a major code rewrite. Please contact us if you find issues. Thank you.
The materials and body were clean. The problem was very strange because the specks only appeared on the insides of the ware. The problem turned out to be iron powder in the burners (shown in the overlay in this photo). Disassembling and cleaning them solved most of the issue. The rest? Disassembling and cleaning them better!
| Troubles |
Specking on Ceramic Ware
Specking, or speckling, can be both a fault or feature in fired ceramic ware - caused or produced by metal-bearing contaminants to metallic additives |
![]() PayPal | No tracking, No ads, No paywall, No transient content! Just organized, concise information constantly updated and improved. Was this helpful? Consider supporting me. |
Buy me a coffee and we can talk