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This video is a demonstration of heating a chocolate bar with 500℃ air by the Air Blow Heater.
Related page:
Hot-air heating of the Bread 
Hot-air heating of the biscuits 
Hot-air heating of the Potato chips 
Hot-air heating of the Shrimp crackers 
No.2 Processing of chocolate 
Heating demonstration of Holing PET bottle by the Air Blow Heater 
The heating demonstration of Holing Polyethylene bottle by the Air Blow Heater 
Forcing test of the plant – heating of pine cones