How to Roast 20 Coffee Bean Origins with the ICOFFEE N901CR

Published: Oct 05, 2026 Author: World Gafei Last Updated: Oct/05/2026 202 views

A detailed guide to roasting 20 global origins using the 150g-capacity ICOFFEE N901CR home roaster, with timing, flame levels, and batch advice.

If you’ve just started roasting your own coffee at home and want to know whether your machine can handle anything from bright Ethiopian beans to bold Sumatra mandheling, here’s your guide. The ICOFFEE N901CR may be compact, but it’s capable of roasting a wide range of origins with distinct results—without requiring pro-level skills or expensive gear.

The ICOFFEE N901CR can roast up to 150g per batch, but the optimal load is 60% to 80% (90g–120g) for even heat distribution and consistent roast colour, whether you’re working with dense Guatemalan beans or lighter Yirgacheffe.

Why Roast Amount and Density Matter

The maximum capacity of the N901CR is 150g, but packing it full isn’t ideal. For best results, aim for 60% to 80% of capacity (roughly 90g to 120g). This applies to both home and small commercial roasters. Why? Different origins have different bean sizes and densities. For example, roasting 150g of Yirgacheffe works fine, but the same weight of large Guatemalan elephant beans may roast unevenly. While some argue inconsistent roasting can add complexity, beginners are better off aiming for evenness to develop balanced flavour profiles.

Basic Roast Controls: Simplicity Over Curve-Chasing

This is a home roaster—not a lab instrument. Forget complex roast curves. Set a max temperature and control roast time instead. Avoid comparing electric roasters to gas-powered ones; they heat differently and produce distinct flavour profiles. Electric heat tends to yield cleaner, more controlled roasts, while gas often adds smokier, deeper notes.

For high-quality beans, use high heat and short roast times—like setting 9 for 10 minutes. This approach capitalises on the machine’s hot-air style to highlight floral and fruity notes before they degrade. For lower-grade beans, a slower, lower-heat roast (lower flame, longer time) helps mellow defects. But if you’re selecting quality greens, fast roasting delivers intense, layered flavours that rival many boutique roasters.

How to Operate the ICOFFEE N901CR

Before roasting, press the preheat button. The machine will beep when ready. Load your green beans, select your flame level, and start. Each number key sets a roast duration. The machine stops automatically when done. Using the default settings gives even colour and balanced cup profiles.

Want more control? Use a stopwatch and set the roast to level 7, 8, or 9. You can stop manually by holding the power button or lifting the lid to drop the beans. Observe bean colour and listen for the first and second cracks to guide your timing. For smaller batches (around 50g), reduce flame to level 6.

Birdman —the author—typically roasts around 100g for 10–12 minutes. That’s a solid sweet spot for many origins.

Flavor, Smoke, and the Filter System

The N901CR comes with an auto smoke filtration system. That means no choking fumes—just a sweet, milky aroma in your roasting room. It’s such a relief for indoor roasting, and other machines like Taiwan’s (Xiao Huo Che) offer similar features. Seriously, if you’re roasting indoors, this filter is a game-changer.

What 20 Origins Look Like When Roasted on the N901CR

Below are examples of beans roasted on the N901CR—both light and dark profiles. These images are for visual reference only; cup quality doesn’t always match appearance. A pretty roast doesn’t guarantee a great cup, and some of the best-tasting batches look underdeveloped.

Here’s a lineup of origins roasted using the N901CR: