These bricks (with technical specifications FCB 40 and an alumina content of up to 40%) are designed to withstand very high temperatures, reaching a maximum of approximately 1350°C to 1400°C (thermal rating temperature). As for the continuous and safe operating temperature in practical applications: In pizza and pastry ovens: It operates with complete efficiency and stability at temperatures between 400°C and 500°C, which is the ideal temperature for quick baking. In charcoal and wood grills: It withstands direct ember heat, typically ranging from 700°C to 900°C, without cracking or crumbling. In other words, these bricks can withstand much more heat than what can be produced by wood or charcoal in home or commercial ovens and grills, making them an excellent choice that lasts for many years.