FAGOR MCBIG-500 Gas Boiling Kettle 500 Litre

A gas boiling kettle heats liquids indirectly through a double-walled chamber, where gas burners transfer heat to water or steam circulating between the walls. This method prevents direct flame contact with the cooking vessel, eliminating hot spots and reducing the risk of scorching. The heat spreads evenly around the inner kettle, maintaining consistent temperatures for large volumes of stock, sauces or soups. Indirect heating also allows precise control over the cooking process, making it suitable for delicate or acidic ingredients that require gentle treatment.

To operate the MCBIG-500, the operator fills the inner kettle with the required liquid, then closes the counterbalanced lid. The gas supply is opened, and the pilot light is ignited manually using the piezoelectric starter. The burners heat the water jacket between the double walls, gradually raising the temperature of the contents. A pressure gauge monitors the steam pressure in the jacket, while a manual air release valve prevents excess build-up. If pressure exceeds safe limits, a safety valve set at 0.5 bar automatically vents steam. A chrome-plated bronze mixer tap supplies hot and cold water for adjusting consistency or temperature during cooking. Once the process is complete, the hydraulic tilting system lowers the kettle to decant the contents, with an automatic shut-off ensuring the burners extinguish during tilting for safety.

The 500 litre capacity allows bulk preparation of stocks, sauces or stews in a single batch, reducing the need for multiple smaller vessels. The 55.4 kW power rating indicates a high gas load, requiring a dedicated supply line in a commercial kitchen. The unit's 2050 x 1475 x 1300 mm footprint demands a spacious work area, while its 505 kg weight necessitates a reinforced floor or base. The 230 V electrical requirement powers the control systems and hydraulic tilting mechanism, operating on a single-phase supply.

Constructed from AISI 316 stainless steel for the inner kettle and AISI 304 for the outer walls and lid, the unit resists corrosion from acidic or salty ingredients. The double-walled design, insulated with high-density ceramic fibre, retains heat efficiently and reduces energy waste. A pressure gauge and manual air release valve maintain safe operation, while a safety valve prevents over-pressurisation. The supporting frame and outer casing are also stainless steel, ensuring durability under heavy use. The satin finish reduces visible scratches and simplifies cleaning.

Cleaning involves draining the kettle, then rinsing the inner surface with water from the mixer tap. The hydraulic tilting system allows full access for scrubbing, while the smooth stainless steel surfaces prevent food residue from adhering. The ceramic fibre insulation should be checked periodically for damage, though it requires no routine maintenance. The gas burners and flue require occasional inspection to ensure unobstructed airflow and efficient combustion.

The MCBIG-500 is designed for large-scale catering operations, such as hotels, hospitals or central production kitchens, where bulk cooking is routine. Its indirect heating system and safety features make it suitable for continuous use in demanding environments.