Halogen
Coffee Roasting
Roasting with halogen lamps will bring
faster starts to the coffee roast cycle and more control over the
roast profile. The halogen lamp will radiate infrared heat at
2,500 degrees centigrade in a split second while old fashioned
infrared heating elements are just beginning to heat up.
The TostaCaffe' Series of coffee
roasters incorporate a dual heating system including an internal
ceramic heating element and an internal tungsten halogen heating
element which also provides illumination of the roasted beans
throughout the roast cycle.
Tungsten Halogen lamps burn hotter than
coffee roasters using natural gas or LP and without the increased
dangers of fire or carbon monoxide poisoning. In addition, there
is no foul smelling LP or natural gas to contaminate the roasted beans
or interfere with the roasters' ability to detect subtle aromas during
the coffee roast process.
When operating the TostaCaffe coffee
roaster the halogen door lamp assembly should be connected to a
separate switching power strip. This will allow switching from
the internal ceramic heating element for slower roast cycle towards
the end of the roast cycle - just past 1st crack or using both
internal ceramic and halogen heating elements for the end of the roast
cycle.
Some new roasters may need the
halogen heat lamp throughout the entire roast cycle - using bean color
as the primary indicator. For this roaster, it might be
necessary to turn the internal heating element off (using the no heat
rotation) and using the halogen light heat source to finish the roast
cycle. Roasting by aroma requires less reliance upon the halogen
lamp during the final minutes of the roast cycle, but this roasting
technique is learned through experience.
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