commercial
diedrich roasters diedrich ir-2.5
the IR-2.5 sits in an awkward middle position, too large for pure sample roasting but too small for serious production volume. at 0.5kg to 2.5kg batch capacity, you could supply a small cafe or online subscription business, but you'll be roasting constantly to keep up with growth. the manual controls match the IR-1, meaning no profile logging or automation, just you and the machine learning together. this works fine if you're committed to hands-on roasting and have the time to develop manual skills. the infrared burner delivers the same consistent heat as other diedrich models. where this machine makes sense is for someone starting very small with plans to eventually move to an IR-5 or IR-12, using the 2.5 to build customer base and skills before investing in larger equipment. as a permanent solution, most roasters either need less capacity and go with a true sample roaster, or more capacity and jump to 5kg.
what it does well
- can handle small cafe or subscription production if you roast frequently
- 0.5kg minimum allows smaller test batches than 5kg machines
- diedrich build quality and infrared consistency in smaller package
- good bridge machine if growing from samples toward production
where it stops short
- too small for growth past early startup phase
- manual controls with no data logging limits repeatability
- batch size range too narrow for shops wanting sample and production flexibility
- resale market smaller than for ir-1 or ir-5 models
specs
- control
- manual
- heat source
- infrared
- batch kg max
- 2.5
- batch kg min
- 0.5
- origin country
- USA