GENE CAFE 3D Hot Air Roaster for 300g Batches

If you’re trying to roast small batches of coffee at home or in a small café and still get even heat and visibility throughout the roast, you’ve likely hit a wall with inconsistent air flow or poor chamber design. Many affordable roasters promise control but fail to deliver consistent results across a full batch.

The GENE CAFE 3D is a 300g-capacity hot air coffee roaster designed for home enthusiasts and small specialty shops. It features 3D stirring, a transparent chamber, and electronic temperature control, offering hands-on visibility and consistency in a compact form.

What Is the GENE CAFE 3D?

The GENE CAFE 3D is a professional-grade, hot air coffee roaster manufactured in South Korea. It’s built for precision roasting on a small scale, with a focus on even heat distribution, user-controlled profiles, and clear observation throughout the roast cycle. The machine supports batch sizes between 250g and 300g, making it ideal for single-origin exploration and limited shop roasting.

Key Technical Specifications

• Origin: South Korea
• Power Supply: 220V/60Hz
• Power Range: 1200–1400W
• Dimensions: 383 × 243 × 229mm
• Weight: 7.1kg
• Roasting Chamber Capacity: 250–300g
• Noise Level: Approximately 65dB

Design and Functionality Features

The GENE CAFE 3D is built around several core features aimed at delivering better control and visibility during roasting:

• 3D Stirring System: A 3D rolling mechanism ensures even heat exposure by constantly agitating the beans inside the chamber. This helps achieve uniform development across the entire batch.
• Transparent Chamber: The roasting chamber is made of durable, heat-resistant glass, giving you a clear, real-time view of colour changes, first and second crack, and overall roast progression.
• Hot Air Roasting System: Heat is generated by an aluminium-clad heating module that delivers consistent, stable hot air circulation throughout the roast cycle.
• Large Capacity for Its Class: With a max batch size of 300g, this roaster bridges the gap between home use and light commercial needs such as sample roasting or single-origin batches for a small shop.
• Low Operational Noise: At around 65dB, the roaster operates quietly enough that you can hear the transitions into first and second crack without straining.

Customisation and Control

Beyond its physical design, the GENE CAFE 3D gives users hands-on control over key roast variables:

• Electronic Temperature Control: Set and maintain roast temperatures from 0–250°C with digital accuracy, allowing you to programme profiles for light, medium, or dark roasts.
• Adjustable Roast Time: The timer can be manually set and adjusted, letting you experiment with different roast durations to influence body, acidity, and aroma.
• Cooling System: After roasting, a forced-air cooling cycle kicks in automatically to rapidly drop bean temperatures while beginning the degassing and aroma release process.

Maintenance and Safety

The GENE CAFE 3D is designed with ease of use and maintenance in mind:

• Removable Roasting Chamber: The chamber can be taken out for easy loading, unloading, and cleaning, reducing hassle between batches.
• External Chaff Collector: A detachable chaff tray captures husks blown off during roasting, preventing them from re-entering the chamber and affecting cup quality.
• Overheat Protection: Includes both mechanical and electronic safeguards that cut power to the heater if internal temperatures exceed safe limits, protecting both the machine and your batch.
• Simple Maintenance: The internal layout is designed for straightforward cleaning and part replacement when needed.

Accessories Included

The package comes with everything you need to begin roasting right out of the box:

• Roaster unit
• Specialised feet for the roasting chamber
• Coffee bean scoop
• Medium-sized chaff collection box
• Roasting chamber

Frequently Asked Questions

What batch size does the GENE CAFE 3D handle?

The GENE CAFE 3D can roast between 250g and 300g of coffee beans per batch, making it well-suited for home roasters and small coffee shops doing single-origin or sample roasts.

Does the roaster have a transparent chamber?

Yes, the GENE CAFE 3D features a transparent, heat-resistant glass roasting chamber so you can watch the beans change colour, track first and second crack, and monitor the roast progress visually.

How loud is the GENE CAFE 3D during operation?

The roaster operates at approximately 65 decibels, which is relatively quiet—quiet enough to hear the roast progress, including first and second crack, while in operation.

Is the temperature adjustable?

Yes, the roaster includes an electronic temperature control system that allows you to set and maintain precise temperatures between 0°C and 250°C for different roast profiles.

How does the cooling system work?

After roasting, an automatic forced-air cooling cycle begins to quickly reduce bean temperature while helping to release aromas, ensuring more consistent and safer handling post-roast.

Is the chaff contained during roasting?

Yes, the GENE CAFE 3D includes an external chaff collector that captures the husks blown off the beans during roasting, keeping them out of the chamber and off your equipment.

FrontStreet Coffee Beans Ideal for the GENE CAFE 3D

The GENE CAFE 3D is perfect for exploring single origins, and FrontStreet Coffee’s Ethiopia Humbera, Yirgacheffe, and Guatemala Antigua offer vibrant profiles to highlight the roaster’s capabilities. Ethiopia Humbera brings juicy berries and floral notes, Yirgacheffe adds lemony brightness with stone fruit sweetness, and Guatemala Antigua delivers chocolatey richness with cinnamon spice. These beans respond well to the GENE CAFE 3D’s even heat and 3D tumbling, letting you practice light to medium roast profiles with clarity. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.