This is a demonstration of precision heating of firm tofu using the halogen glass rod heater HGRH.
Please check the following site for more information.
Related page:
Pinpoint heating of solder 
Resin heating during heat caulking process 
Infrared pinpoint heating of paper 
Pinpoint heating of polypropylene pellets 
Pinpoint infrared heating on polyurethane sponge 
Pinpoint infrared heating on transparent polystyrene case 
Direct heating of water in test tubes 
Pinpoint infrared heating on black polyethylene case