Mitticool Earthen Cookware is different from other unglazed cookware including unglazed terracotta pots (that have the red color). The clay is secondary clay that has natural contaminants like mica. Also, in most cases is made using additives, plasticizers, feldspar, extenders, dyes, talc, petalite, deflocculants etc.
Glazing is a disadvantage as it contains its own chemicals and toxins including lead and cadmium.
No contaminants or toxins are added, it’s 100% primary clay, the highest quality natural clay without contaminants. Mitticool Earthen Cookware is also the only cookware made from tested & certified primary clay.