What is a drum coffee roaster?
A perforated cylinder (drum) holds the coffee beans, which are being roasted by direct radiation, conductivity and convection currents of air. The cylinder constantly rotates to evenly distribute the heat across the beans. This method of roasting is the same one used in the commercial coffee roasting.
Now, let’s look at the advantages of drum coffee roasters:
- Large bean capacity – Drum roasters typically roast 225 g – 300 g coffee at a time, which is considered just the right amount for home users. Behmor 1600 offers the largest capacity – up to 1 lb (453.5 g). However, when roasting max quantity with Behmor, you should have in mind that some coffees will not even reach a second crack i.e. it’s hard to get darker roast.
- Durability – Drum roasters are very well-built and will last longer.
- Long roast time – Drum roasters roast slower than the fluid-air roasters (between 15 and 20 min.), which is designed to match the traditional flavor development of a commercial roaster in smaller batches.
- Quiet– Most drum roasters are extremely quiet, which is very convenient when you have to listen for the subtle distinction of the first and second cracks.
- Less smoke – Most of the drum roasters have built-in smoke reduction (air filtration) system
- Developed, complex flavor – drum roasters offer great complexity of flavors, whether this is due to longer roast times or the type of heat, compared to fluid-air roasting.
Currently on the Canadian market you will find the following drum coffee roasters at these approximately prices:
- Behmor 1600 – priced around $400
Hottop KN-8828P-2 and KN-8828B-2 – price range: $800 to $1000
- Gene Café CBR-101 – around $500
Let me know do you own a drum coffee roaster? What is your experience and results?