How to Roast 20 Coffee Origins on the ICOFFEE N901CR

Published: Oct 04, 2026 Author: World Gafei Last Updated: Oct/04/2026 209 views

Discover how to get even, flavorful roasts from light to dark using the ICOFFEE N901CR, with profiles for 20 global origins and expert tips.

If you’re roasting coffee at home, you’re likely wondering how to get consistent results without overcomplicating the process. Unlike commercial setups, home roasters like the ICOFFEE N901CR aren’t designed for curve-chasing—they’re built for ease, speed, and quality results with the right approach.

The simple answer? Load 60–80% of the 150g max capacity (so 90–120g), keep roast times between 10–12 minutes, and adjust heat and duration based on bean origin and quality. For high-quality greens, use high heat (like 9/10) and shorter times; for lower-grade beans, go low and slow to clean up off-flavors.

Why Roast Capacity Matters

The ICOFFEE N901CR can handle up to 150g per batch—but don’t fill it all the way. Birdman (aka ‘’), a seasoned home roaster, recommends loading just 60–80% of that maximum. That’s around 90–120g, a sweet spot that works well for both home and pro machines. Why? Because bean density varies massively by origin. For example, 150g of Yirgacheffe roasts evenly without issue, but the same load of Guatemala’s large 23-eye Elephant beans may roast unevenly due to differences in bean size and density. Evenness matters more for beginners, though some pros chase slight inconsistencies for added complexity.

How to Approach Roast Curves—Or Not

Forget complex roast curves. The N901CR is a hot-air, electric drum roaster, not a fluid-bed or gas-powered machine, and each has its own flavor bias. “Don’t compare electric and gas roasting,” says Birdman. “They’re different schools of thought.” Instead, focus on two controls: max temperature and roast time. His go-to method for high-grade beans? Crank the heat to level 9 and roast for about 10 minutes. This fast, hot approach highlights bright, clean flavors like floral and fruit notes. Slower, lower-heat roasting (e.g., low flame, longer time) is better for fixing funky or earthy tones in lower-grade beans—but most home roasters will prefer the punch of the fast route.

Step-by-Step: Roasting on the ICOFFEE N901CR

Here’s how the N901CR works in practice:

Preheat: Hit the power switch, then press the preheat button. The machine beeps when ready.
Loading: Add 90–120g of green beans (60–80% of max capacity).
Set Heat Level: Choose a roast level from 1–9. Numbers correspond to roast duration—each higher number means faster roast times.
Roast: The machine stops automatically when done. Default settings yield balanced, evenly roasted beans with good color.
Custom Timing (optional): For more nuanced results, use a stopwatch. You can also stop manually by holding the power button or lifting the lid.
Adjust for Smaller Batches: For small loads under 100g—say 50g—drop to level 6 to avoid scorching.

Birdman typically roasts for 10–12 minutes with around 100g of beans, balancing speed and evenness. If you reduce the batch size, tone down the heat to prevent over-roasting.

Why the Auto Smoke Filter Is a Game-Changer

One of the N901CR’s best features is its built-in smoke filtration system. “It makes indoor roasting enjoyable,” says Birdman. There’s no harsh smoke—just a sweet, milky aroma filling the room. Other machines, like Taiwan’s Little Train roaster, also include this feature. For home use, automatic smoke filtering isn’t just convenient—it’s essential.

Roast Profiles Across 20 Origins

Below are roast examples from the N901CR, covering a global range of origins and processing methods. These are for reference only: pretty roasts don’t always mean great cups, and vice versa.