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This video is a demonstration of heating a biscuits with 500℃ air by the Air Blow Heater.
Related page:
Hot-air heating of the Bread 
Hot-air heating of the Potato chips 
Hot-air heating of the chocolate bar 
Hot-air heating of the Shrimp crackers 
Heating demonstration of Holing PET bottle by the Air Blow Heater 
The heating demonstration of Holing Polyethylene bottle by the Air Blow Heater 
Caramelize a biscuits 
Forcing test of the plant – heating of pine cones