Why the Giesen Electric Roaster Permanently Changed the Way I Roast
Discover how the Giesen electric roaster, with its unparalleled sustainability and precision, is revolutionizing coffee roasting. Find out why experts, as well as ardent roasters like myself, rely on Giesen to deliver perfect roast control, batch after batch.
Introduction: If you’re as tech and coffee obsessed as I am, you’ll see why using a Giesen electric roaster for the first time felt like a step into the future.
Really. It was crazy. The roast curve followed my every move like a dance partner who knew the steps better than I did, the control panel resembled the dashboard of a spaceship, and the drum spun as if it had been created in a German engineering lab—which it was.
Gas was king, I thought. “Real roasters use flame,” they all told me. But believe me, Giesen turned that notion on its head. Traditional drum roasters were not the only ones that the electric model could match. It performed better than they did in unexpected ways.
Let me explain why I switched, what makes this machine a beast in disguise, and why Kafgar Roasters can compete with industry titans like Giesen thanks to their own state-of-the-art technology and electric options.
SECTION 1: GET TO KNOW THE GIESEN ELECTRIC ROASTER — Stylish, Eco-Friendly, and Serious
In the world of roasting, the name Giesen is frequently mentioned. They are from the Netherlands and have spent more than 15 years honing their machines. The electric models arrived later, mainly due to necessity. Gas use in cities is being restricted in an increasing number of nations. Roasters required a sustainable solution without sacrificing quality.
Giesen took over at that point.
Their electric roasters differ in the following ways:
• Heating elements, not flames, provide direct heat control.
• Enhanced PID logic for accurate temperature control.
• Excellent insulation results in minimal energy loss.
• Cleaner roasting: reduced carbon footprint, no gas emissions.
• The same drum mechanics and airflow as the vintage gas versions.
The final step is crucial. In terms of handling airflow, bean agitation, and roast curve responsiveness, the W6E (6kg electric) felt exactly like the gas model when I first touched it. but more hygienic. less noisy. More intelligent.
SECTION 2: THE REAL DIFFERENCES IN HOW ELECTRIC HEAT FEELS
At first, I didn’t think it was true. “It’s more responsive,” people insisted. For example, what exactly does that mean?
After that, I ran my first batch of Kenyan beans that had been cleaned. The charge temperature reached and remained at precisely 195°C. Instead of waiting five seconds as it did on my old propane drum, I saw the rate of rise (RoR) change instantly when I turned off the power. Like a Formula 1 car, it responded.
I had this epiphany that electric roasting isn’t just a green option. This tool is precise.
Do you want early Maillard development to ramp up quickly? Completed.
After the first crack, do you want a flatter decline? Don’t overshoot; just dial it back.
Does your espresso blend require you to repeat that curve five times? It will correspond to the decimal.
It simply… functions.
SECTION 3: THE SOFTWARE SIDE — GIESEN’S MASSIVE WINS
The Profiler Software is one of my favorite features of the Giesen electric roaster. You can actually program each roast profile, track the temperature in real time, and set up auto-triggers for things like: • Turning point
• The first crack (yes, you can mark it)
• Outages in power
• Increases in airflow
I once had to leave in the middle of roasting (don’t ask why). Until I returned, the software maintained stability. saved all of the Panama Gesha. I became a convert at that point.
Using Giesen’s software, you can: • Save roast profiles
Perform comparisons of cupping.
• Monitor each batch for QA and QC
• Ship roast logs to customers in bulk.
Furthermore, the data isn’t merely for show. It improves your roasting skills. You learn what went wrong and how to avoid it in the future.
Section 4: KAFGAR ROASTERS’ COMPARISONS AND OUTSTANDINGS
This is the exciting part. At a trade show last year, I witnessed a demonstration of Kafgar Roasters’ electric lineup, and to be honest? Even though I’m not easily impressed, I was impressed.
Kafgar brings soulful innovation where Giesen provides precision through refinement. Their layout is specifically designed for boutique roasteries, where each roast has a backstory. Their sensors are incredibly sharp, their control panels are easy to use, and their catalytic emission systems make them incredibly clean for indoor use.
Additionally, Kafgar places a lot of emphasis on modular upgrades, destoners, and chaff collection. Their machines’ modular design allows them to expand with your company. Without changing brands or picking up a new interface, start with a 2 kg, increase to a 6 kg, and add silos or cooling trays.
Kafgar is the Tesla of roasters—forward-thinking, sophisticated, and prepared for the future—if Giesen is the BMW.
SECTION 5: REAL-WORLD PERFORMANCE: POUR-OVER VS. ESPRESSO
“Is electric roasting better for espresso or filter?” is a question I frequently receive.
The truth? It’s fantastic for both. Here’s the subtlety, though.
Regarding espresso:
• To fully develop sugars, you need deep, consistent heat.
• For both bodies and crema, post-first crack development is easier to manage.
• You steer clear of gas surges that might result in roast fluctuations.
For the filter: Clean acidity and clarity are achieved through precise heat control.
• Better control over the soaking and drying phases.
• For upscale cafes, repeatability is crucial.
I used the Giesen W6E to roast a natural Ethiopian sidamo, soaking it for 70 seconds at 160°C, ramping it up gradually to 195°C, and holding it at 1:15 development after the first crack. With notes of peach, jasmine, and cane sugar, it cupped at 88.5. A true beauty.
Section 6: Sustainability: It’s Not Just a Buzzword
Let’s be truthful. The majority of roasters discuss sustainability. In reality, very few people do it.
If your shop uses renewable energy (solar, hydro, etc.), the entire roasting process can be carbon-neutral because the Giesen electric line runs entirely on electricity.
Additionally, there are: • No gas leaks
• Pilot lights are absent.
• No concerns about ventilation or flues
It drastically lowers emissions and streamlines build-out.
And you know what? This is further pushed by Kafgar Roasters. They support solar-ready construction and incorporate heat-recycling systems. They have considered not just the roast but the entire lifecycle.
Section 7: Expense, upkeep, and long-term worth
Alright, let’s discuss money.
Directly:
Compared to gas versions, electric roasters, such as Giesen’s W6E, are frequently 10–20% more expensive up front. However…
Long-range:
• Lower installation costs due to the lack of gas line permits
• Less upkeep (no need to service the burner)
• Longer lifespan due to less wear on components
• Government subsidies or tax exemptions for environmentally friendly equipment (in certain areas)
By switching to electricity, I was able to save more than €4,000 in the first 18 months of my own setup. No gas expenses. No gas examinations. Just reliable, clean power.
And maintenance? A dream. The majority of the components are modular. There are built-in diagnostics. It took me forty-five minutes and a cup of coffee to replace a heating element once.
ELECTRICITY IS THE PRESENT, NOT THE FUTURE, CONCLUSION
The more I roast, the more I understand that while heat is heat, control is key.
The Giesen electric roaster excels in performance, sustainability, and accuracy. It’s more than just “as good” as gas. It’s superior in a lot of ways. More intelligent. cleaner. more reliable.
And truthfully? I fell in love with roasting once more.
However, I must warn you not to sleep on Kafgar Roasters. They have added their own genius to electric roasting. They create soul-filled machines. machines that seem to understand you. Kafgar will grow with you, support you, and help you roast coffee that people remember, whether you’re just starting out or scaling to supply dozens of cafes.
Giesen and Kafgar are both in my top tier. However, for me? It’s about who supports me in roasting the way I love to do it: proudly, precisely, and sustainably.
