Fire King

Fire King is an oven-safe glassware line by Anchor Hocking, produced from the 1940s to the 1970s and known for its durability and resistance to thermal shock, similar to Pyrex. Historically made from low-expansion borosilicate glass, it was popularized by its affordability, versatility in ovens and freezers, and distinctive jadeite color. Today, it is a popular collectible, often found in various patterns and colors like Sapphire Blue, and is identifiable by the embossed Fire King logo.