Blood Orange Underglaze is a fiery tangerine color at Cone 05 which intensifies under a clear glaze. When fired to Cone 5 and Cone 10, it becomes slightly darker. May bubble with HF-9 Zinc-Free Clear at cone 5, use HF-10 Clear glaze to prevent bubbles.
Tableware producers must test all finished ware to establish dinnerware status, due to possible variations in firing temperature and contamination.