Diedrich Roasters IR-12 Skrócona instrukcja obsługi - Strona 3
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ALL SYSTEMS (Electrical, Gas, and HVAC) MUST BE CONNECTED, FUNCTIONING, AND
INSPECTED (if required) PRIOR TO USING THIS QUICK START GUIDE
As the coffee reaches a temperature of 340°F (171°C) the chemical changes in the coffee start an exothermic
reaction (the chemistry creates its own heat). This exothermic reaction continues through the remainder of the
roast and therefore the gas % should be reduced during this period until the end of roast.
7. When the coffee approaches ~385°F "1st crack", reduce fuel % and let the roast progress in the full
roasting stage until the coffee develops through the second crack (~435°F) and oil begins to appear at
the tips of the beans (try and reach ~460°F slowly).
8. When you begin to notice the first traces of oil, turn the gas control "OFF." Note: Due to the exothermic
reaction (the chemistry creates its own heat), the bean temperature can continue to rise on its own with
gas turned off.
Pay close attention to the temperature at this point.
ABOVE 480°F!
The roaster is equipped with a High Temperature Limit System that shuts the gas off
at 485°F. However, the temperature can continue to rise due to the exothermic reaction of the bean. If
the coffee is not removed from the drum before 500°F, the coffee may ignite. Have a water source or
CO2 fire extinguisher nearby.
At 475°F, the main burner shuts off, but the pilot does NOT shut off (No alarm sounds). At 485°F, the
alarm will sound and the High Temperature limit shuts down the roaster's entire gas system. (If this
happens, wait for temperature to reduce and reset the roaster.)
9. Let the coffee roast in its own liberated heat until the beans are fully oiled and almost black. Leave the
coffee turning in the drum for 30 – 60 minutes or until the beans are dry to help fully coat (season) the
drum.
10. Once the beans become less oily, turn on the "AGITATOR" and move the air lever control to the
"THROUGH COOLING BIN" position and discharge the coffee into the Cooling Bin.
Repeat seasoning cycle if scorching or tipping occurs during normal roasting.
DIEDRICH ROASTERS®
Manual IR-5/IR-12 Roaster
Quick Start Guide
ATTENTION!
WARNING!
High Temperature Limit Module Explanation
Technical Support Hotline
+1.844.343.3742 M-F 7A-3:30PM PT
Rev.01.2023 DIEDRICH ROASTERS® ALL RIGHTS RESERVED
DO NOT LET THE TEMPERATURE RISE
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