Diedrich Roasters IR-12 빠른 시작 매뉴얼 - 페이지 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

DO NOT LET THE TEMPERATURE RISE