Nitriding process is the most effective way to avoid rusty, the nitriding layer would protect the iron surface not rust. Only iron base surface, No chemical pollution while cooking, safe temperature to 1000F degree not be damaged even dry heat. The uncoated iron surface be 3 times harder than the steel one, which be safe for metal spatula.  

●Pure iron, no chemical coating 

●Thin wall, 30%-50% light weight 

●Rust resistant 

●Scratch resistant 

●Metal spatula safe