METHOD FOR THERMAL CLEANING OF ALUMINUM BREAD PANS FROM TAR CAKING Russian patent published in 1999 - IPC

FIELD: baking industry, in particular, removal of tar caking such as stratified oil residues upon oiling of pans prior to placing dough into pan and multiple heating in baking oven. SUBSTANCE: method involves heating pans to temperature of 450-500 C in controlled atmosphere containing water steam, nitrogen, oxygen and carbon dioxide; heating pans within temperature range of 260-360 C at temperature elevating rate of 0.6-0.8 C per min; maintaining ratio of volumetric parts of water steam and oxygen in controlled atmosphere within the range of 12:1 to 30:1, and volumetric part of oxygen content within the range of 2-6%. EFFECT: increased efficiency, provision for preventing carbon black aerosols from being thrown into environment and reduced cost of cleaning process.