Nordfab Ductwork for Coffee Roasting Application


Nordfab duct from dust collector to coffee roasting factory

Quick-Fit Ducting for Dust Collection / Ventilation for Coffee Roasters Large and Small

coffee roastingCoffee roasting is the process of heating coffee beans to produce a chemical change that prepares the beans for consumption. The process produces unwanted byproducts from both the beans themselves and from the natural gas combustion used in the heating process.

Coffee roasting typically consists of several steps requiring dust collection:

In the Roasting process, the bean is heated up to 260 degrees centigrade and changes from bright green to pale yellow as it dries and, finally, to increasingly darker shades of brown and possibly black, depending on the desired taste profile. During this process, dust and chaff from the skin of the bean, steam, CO2, vaporized oils and various other gaseous emissions from the roasting process are produced and must be vented.

At the end of the roast, in the Cooling process, the beans are stirred and blasted with chilled air. Dust extraction at this step is used to remove the chaff and any other particulates. The batch is sometimes misted with water to hasten cooling. This process carries away smoke and odor and possibly steam and must also be vented.

Finally, in the Destoning process, any wastes not previously removed are separated from the coffee beans. The primary pollutant that must be collected from this process is any remaining chaff.

From large factories to small retail establishments, coffee producers around the country are requesting Nordfab’s Quick-Fit ducting for installation into their dust collection / ventilation systems at all phases of the roasting process. The ease of disassembly and re-assembly of Quick-Fit ducting allows fast and easy clean-outs.


Example Installation: Coffee Roasting
nordfab duct on coffee roasterApplication: Fume, vapor and heat extraction
Machines Connected: Two ports, one machine
Description of installation: Nordfab Quick-Fit was used for fume and heat extraction on the coffee roaster. The clip-together product allows for easy cleaning, which is very important in the coffee roasting industry due to very sticky buildup.
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