Description Gene Cafe CBR-301 Home Coffee Roaster Capacity 100–300 g • Temp 140–500°F (60–260°C) • Time 0–30 min • Variable Drum Fan • Bluetooth App • Auto Cool Why choose the CBR-301? Patented vortex rotation, bigger batches, and app-ready control Capacity Up to 300 g per batch (≈10.6 oz) — works well from 100 g up to full loads. Control Temperature time (F/°C) with variable drum & fan speed. Optional Bluetooth app for control and profile saving. Roast quality Off-axis “vortex twisting” rotation indirect hot air for even development. Removable chaff drawer for quick cleanup. Quick specs Capacity: 100–300 g (300 g max) Controls: Temp 60–260°C (140–500°F), Time 0–30 min Cooling: automatic cool (forced air) Typical roast time: ~10–20 min (varies by batch & roast level) Visibility: Pyrex glass roast chamber Stirring: vortex twisting (off-axis rotation) Venting: recommended (use vent pipe / range hood / window) Warranty: 12 months (may vary by region/seller) How it works Indirect hot air vortex drum agitation The CBR-301 circulates heated air through a rotating glass chamber while the off-axis “vortex twisting” motion continuously mixes the beans. This helps promote even roasting, and the chaff drawer collects husk for easier cleaning. How to use it New Gene Cafe App Download the Gene Cafe app from Google Play or the App Store and easily control your roaster directly from your smartphone. RoastingMonitor the roasting process in real time, with clear information on time, temperature, and the roasting curve, including event markers such as cracks, allowing for precise control of every roast. My RoastingAccess a history of your saved roasts, where you can review previous profiles, compare results, and keep better track of each coffee you roast. Bluetooth ConnectionConnect to your Gene Cafe roaster via Bluetooth. The app displays a list of available devices, allowing you to select your roaster and start roasting in seconds. SettingsCustomize the app to suit your preferences by changing the language, adjusting the curve colors, and setting up shortcuts for a smoother and more efficient experience. Comparison CBR-101 vs CBR-301 Feature CBR-101 CBR-301 Batch capacity ~250 g Up to 300 g Time / Temp control Yes Yes (F/°C) Mobile app / Bluetooth No Yes Extra roast control Standard Variable drum & fan speed Best for Manual roasting / proven classic Bigger batches / app profiles / extra control Step-by-step Your first roast Weigh 200–250 g of washed beans for your first batch (you can move up to 300 g once you’re comfortable). Insert the roast chamber and make sure the chaff tray is empty. Connect the vent pipe if you’re using external venting. Set Time 15:00 and Temp 450°F (232°C); press Start. (No preheat needed.) At yellowing (often ~4–6 min), raise temperature if needed (e.g., 470–500°F) to maintain steady momentum. Listen for first crack (commonly ~9–12 min). For lighter roasts, reduce heat slightly and develop 60–120 s. Hit Cool at your target. Let the automatic cooling finish, then empty the chaff tray and allow the roaster to fully cool. Step-by-step GENECAFE CBR-301 MANUAL VIDEO Visual guide — 1 dot per minute set temp CBR-301 Roast Curve (Light • Medium • Dark) The vertical axis shows set temperature (°F) — a helpful reference for repeating profiles. Values are approximate and vary with batch size, ambient conditions, and voltage. We are currently developing new curves; these are just an example and not applicable at the moment. Light (City) 500°F 470°F 440°F 410°F 380°F 350°F Set temp (°F) 0 1 2 3 4 5 6 7 8 9 10 11 12 Dry end First crack Target Light: stop ~60–120 s after first crack. Use set temp as a guide. Medium (City / Full City) 500°F 470°F 440°F 410°F 380°F 350°F Set temp (°F) 0 1 2 3 4 5 6 7 8 9 10 11 12 Dry end First crack Target Medium: finish ~90–180 s after first crack; keep momentum steady and avoid stalling. Dark (Full City ) 500°F 470°F 440°F 410°F 380°F 350°F Set temp (°F) 0 1 2 3 4 5 6 7 8 9 10 11 12 Dry end First crack Target Dark: finish ~180–270 s after first crack; vent well and watch smoke. Note: temperatures are set-temp references (not internal bean temp). Use them as guidance and prioritize color, sound, and aroma. What’s in the box CBR-301 base (main body) Pyrex glass roast chamber Chamber stand Vent pipe connector User manual Warranty 12-month warranty is common (coverage can vary by region/seller). Need help? Contact us — we’re happy to assist. FAQs How much can I roast per batch? The CBR-301 roasts from 100 g up to 300 g. Start at 200–250 g until you learn the machine. Do I need ventilation? Yes — especially for medium-dark roasts. Use a range hood, open window, or a vent pipe to the outside. What makes it different? Vortex twisting (off-axis rotation) and indirect hot air help roast evenly, with an optional Bluetooth app for profile saving. Is preheating required? No — the roaster is designed to warm up gradually. Improper warm-up can reduce durability.
