The specialty coffee revolution has brought small-batch roasting into cafes, creating air quality challenges in customer spaces. The goal is delicate: preserve the pleasant coffee aroma that attracts customers while eliminating the acrid smoke that drives them away. Souniny Coffee Exhaust Purifier and LD purifiers provide the precise control needed.
| Parameter | Specification |
|---|---|
| For Roasting Emissions | K-2000 / K-4000 coffee roaster purifier |
| Roaster Capacity | 5-15 kg batch roasters (typical cafe scale) |
| For Brewing/Cooking | Light-duty Series for kitchen and food preparation |
| Odor Balance | Adjustable carbon bypass — allows controlled aroma release |
| Particulate Control | 97%+ for roasting smoke; 95%+ for general cooking |
| Customer Area Target | PM2.5 <25 μg/m³; visible smoke: zero |
Application Scenarios
- Specialty coffee roastery-cafe (Portland, USA): A cafe roasting 200 kg weekly on a 12kg Probat in full view of customers. The K-4000 purifier is connected to the roaster’s cyclone exhaust. During roasting (visible smoke at first and second crack), the cafe maintains clear air with zero haze. The carbon bypass is adjusted to retain enough coffee aroma to be pleasant without being overwhelming — the roaster describes it as “the smell of fresh coffee, not burning coffee.”
- Multi-roaster cafe (Tokyo): A cafe featuring beans from 5 different roasters, with an on-site sample roaster for customer demonstrations. The K-2000 handles the small-batch roasting emissions while Light-duty Series manages the kitchen (light food preparation). The cafe is in a basement unit of a department store — zero external ventilation possible. The ductless system was the only viable option and received store management approval after a 2-week trial.
- Coffee training lab and cafe (Melbourne): A specialty coffee training center with daily barista classes and a public cafe installed K-2000 + Light-duty Series. The training lab roasts samples daily and conducts cupping sessions. The purification system ensures that the classroom environment remains comfortable — important for paying students spending 8-hour days in the facility. Student feedback scores for “facility environment” average 4.9/5.
- Shopping mall cafe kiosk (Singapore): A small specialty coffee kiosk in a mall atrium roasts 30 kg/week using a 5kg sample roaster. The K-2000 is installed in a compact enclosure beneath the kiosk counter. Mall management was initially skeptical about permitting roasting in an open atrium but approved after a demonstration of the Coffee Exhaust Purifier with third-party air quality monitoring data. The kiosk has become one of the mall’s top-grossing F&B outlets per square meter.
