Ceramic is an inorganic (meaning no carbon) and non-metallic material that constitutes the material in the natural ceramic cookware like Xtrema. It is one of the best natural cookware materials.
In the non stick ceramic cookware type, the manufacturers use sand (silica) that is formulated to provide a non-stick surface.
How is the non stick coating of ceramic pans formulated?
Instead of using toxic chemicals and solvents to stop foods sticking to the cookware, ceramic provides an ultra-dense, ultra-hard ceramic (glass-like) surface that has no microscopic pores to which food particles can stick.
Ceramic coatings include patented types, like Thermolon, used by GreenPan and GreenLife in their best ceramic nonstick cookware.
Thermolon coatings involve a Sol-Gel procedure: “Thermolon is developed from an inorganic, ceramic polymer based on silica that is coated using a sol-gel process. It is a mineral-based coating made primarily out of a combination of silicon and oxygen – the same basic elements found in sand. Thermolon’s inorganic origins allow it to overcome environmental and engineering inefficiencies found in organic non-stick coatings such as PTFE.” (Porcelain Industries 2018)
From the manufacturers (e-mail: [email protected]) of Thermolon:
“Thermolon™ is inorganic (i.e., mineral in origin) and, therefore, offers a unique
combination of properties:
• Hardness (up to pencil hardness 9H)
• High heat resistance (up to 450°C)
• Low coefficient of friction
Thermolon™ is a natural solution that is in accordance with International Food Contact Regulations such as those set by the U.S. Federal Drugs Administration (FDA) FDA CFR21 § 175.300 and the German LFGB §30
Patented Weilburger Greblon® ceramic nonstick coating used by Healthy Legends also uses the Sol-Gel technology, which is a process that converts the inorganic solution into a gel that is applied to a metallic base by spraying or dipping and then hardened by firing (known as curing).
Weilburger claims their product contains no lead, no cadmium, no PFOA, and no PFOS (Perfluorooctane sulfonate, another PFAS).
The nano-ceramic technology used in Cuisinart ceramic cookware and by other cookware companies also involves the Sol-Gel technology.
100% Ceramic Cookware
This 100 percent ceramic cookware is made of molded natural clay and finished with a natural ceramic glaze.