Aillio
Sources: Aillio (website); Roast Rebels (website)
Aillio Technology Co., Ltd. is a Taiwanese hardware company that makes the Bullet, an induction-heated drum roaster in the 1–1.2 kg range. First shipped around 2015, the Bullet has grown to over 16,000 users in 100+ countries — making it one of the best-selling specialty roasters in its capacity class. The company is headquartered in Taipei with offices in Thailand and Denmark. (source: Aillio (website))
Products
The Bullet R2 Pro / R2 / R1
Three current models sharing the same drum architecture but differing in power, precision, and features:
| Model | Capacity | Power | Price (USD) | Stages | Precision |
|---|---|---|---|---|---|
| R1 | 1 kg | 1,550W | $3,599 | 9 | ±2% |
| R2 | 1 kg | 1,700W | $4,099 | 10 | ±0.5% |
| R2 Pro | 1.2 kg | 2,300W | $5,299 | 14 | ±0.5% |
All models include: IBTS (Infrared Bean Temperature Sensor), RoasTime software, Roast.World cloud access, cooling tray, chaff filter, and tryer. The R2 and R2 Pro add a barometric pressure sensor; the R2 Pro further adds FlowSense, Quick Clean, a magnetic-filter Pro Cooling Tray, and a bean deflector. (source: Aillio (website))
For European VAT-inclusive pricing sourced from a third-party retailer, see Roast Machine Types.
AiO (In Development)
A 2 kg fully-automatic shop roaster aimed at high-volume cafés. No release date announced as of May 2026. (source: Aillio (website))
Key Technologies
Induction Heating
The Bullet uses induction rather than gas combustion — a significant differentiator from most drum roasters. Induction enables:
- Very fine power granularity: 9–14 steps; ±0.5% precision on R2/R2 Pro
- Fast power response: changes apply almost instantly (no thermal lag from a burner)
- All-electric operation: no gas line required; compatible with solar or grid power
- Available in both 110–127V and 200–250V variants (same power output; higher voltage slightly more efficient)
IBTS (Infrared Bean Temperature Sensor)
The IBTS measures bean surface temperature using an infrared sensor pointed at the bean mass inside the drum. This is distinct from a standard thermocouple, which measures drum air temperature and lags behind the actual bean state. The IBTS gives earlier, more accurate readings — especially useful for detecting the inflection point just before first crack and for consistent drop timing. (source: Aillio (website))
Back-to-Back Roasting
The Bullet’s cooling tray operates independently of the drum. While one batch cools, the next can begin immediately — enabling continuous multi-batch sessions without downtime. No monthly or annual roasting limit. (source: Aillio (website))
Venting
The Bullet has no built-in exhaust venting — the operator must design and install a venting solution. Aillio provides 3D-printable exhaust adapter files. This is an important consideration for indoor installation at a roastery or café. (source: Aillio (website))
Barometric Pressure Sensor
Present on R2 and R2 Pro. Adjusts temperature readings for atmospheric pressure variation — useful when roasting at high altitude or in locations with significant weather-driven pressure changes. Directly relevant for roasting in El Salvador’s highlands.
Software
RoasTime (Mac/Windows/Linux): Aillio’s first-party software for logging, profile management, recipe-based automated playback, and firmware updates. Profiles can be shared and downloaded via Roast.World.
Roast.World: Cloud platform for profile sync, cupping notes, community sharing, and green coffee search. As of 2026, approximately 38,000 roasts are logged per week on the platform.
Artisan compatibility exists but requires legacy drivers from RoasTime 1 and is no longer officially supported. Users who switch to Artisan cannot use Roast.World. Cropster integration is not mentioned by Aillio; IKAWA, not Aillio, carries the native Cropster CSAR integration. (source: Aillio (website))
Purchasing and Lead Time
Aillio ships globally via DHL and sells through a network of local distributors. All direct purchases include a 2-year warranty (parts and labor). Stated lead time is approximately 3 months; actual delivery from purchase has typically run 4–8 weeks. Voltage models (110–127V and 200–250V) deliver equivalent power output; the higher-voltage variant is slightly more efficient for large batches at high temperatures. (source: Aillio (website))
Use Cases
The Bullet occupies a unique position: it is genuinely production-capable (120 kg/week documented in testimonials; no volume cap) while remaining compact enough for rapid iterative development. This makes it a strong bridge machine between dedicated sample roasters and production roasters.
Documented uses:
- Sample roasting for professionals evaluating green lots before committing production batches
- Micro-roastery production — some operators run entirely on a Bullet
- Competition roasting — two championship wins documented in testimonials
- Light/Scandinavian-style roasting — praised for precision at light roast levels
- Single-bag-to-order — fine enough control for individual custom orders
Comparison to Other Sample and Compact Roasters
| Machine | Type | Capacity | Heat source | IBTS-equiv. | Profile software |
|---|---|---|---|---|---|
| Aillio Bullet R2 Pro | Drum | 1.2 kg | Induction | Yes (IBTS) | RoasTime / Roast.World |
| ROEST L200 Ultra | Convection | 200 g | Electric | Yes (multiple) | ROEST Connect |
| IKAWA Pro100x | Convection | 100 g | Electric | Humidity sensor | IKAWA Pro App |
| IKAWA Roastmaster | Drum | 5–20 kg | Electric (Bühler) | — | IKAWA / Cropster |
The Bullet’s drum architecture more closely mirrors production drum roasters than convection sample roasters — which simplifies profile transfer but requires more care around heat management. (source: Aillio (website); ROEST (website); IKAWA (website))
Relevance to Kaiserblick
The Aillio Bullet sits between sample roasters (ROEST, IKAWA) and full production roasters in the equipment spectrum. For Kaiserblick’s roasting operation, it could serve a dual role: rapid micro-lot profile development and supplemental production capacity. The barometric pressure sensor is a practical advantage for Kaiserblick’s highland growing environment.
The all-electric induction design aligns with a sustainability narrative — relevant if Kaiserblick sources electricity from solar or renewable grid.
Roxanne Fredericksen manages roast profile development; a Bullet would extend her iteration speed without consuming time on the main production roaster.