Getting Started with Roest

Roest is commonly used as a professional sample roaster, but many community users also use compatible models as small home or micro-production roasters. Getting started is less about copying a single profile and more about choosing the right batch size for the specific machine, confirming the machine state, and building repeatable habits before interpreting roast curves. This guide gives a practical first workflow and points to specialist pages for deeper work.

What to Decide First

The first practical decision is batch size, but the dose ranges below apply only to Roest sample-roaster models/configurations that support them. A P3000 should not be treated like a 50-200g sample roaster; P3000 users should use P3000-specific minimum batch sizes and workflows. Likewise, S100-class or older machines should stay within their rated capacity and setup rather than being pushed toward larger sample-roaster doses.

Roest behaves differently at 50g, 100g, 125g, 150g, and 180g+, and profiles do not transfer cleanly between those sizes. Small batches are useful for sample evaluation; larger batches, where supported by the machine, usually give more realistic drinking results.

Avoid making 200g the first workflow on machines in this sample-roaster range. Multiple experienced users treat 200g as possible but more finicky, with concerns around sensor usefulness, beans reaching the chute/exhaust, and machine-specific behavior. For detailed batch-size guidance, see Batch Size Scaling.

Know Which Machine and Sensors Are Available

Some older machines, including an L100 2022 example, do not have inlet temperature available. In that case, shared inlet-temperature profiles cannot be used as intended; a power profile is the safer substitute, and ET profiles were specifically discouraged as unstable in that context source. Sensor availability also affects what appears on screen: an L100 Plus was described as showing Bean, Inlet, Drum, Exhaust, and Air temperature, while an S100 shows Bean Temperature source.

Machine variation is real. Profiles shared between similar Roest machines have produced differences of minutes or failed to crack, and even matching machines can behave differently source. Treat shared profiles as starting points, not prescriptions; see Profile Sharing and Starting Points.

Canonical Starter Workflow

This is the single recommended first workflow for a new user on a Roest sample-roaster model/configuration that supports 50g roasts and wants to learn the machine without over-committing expensive green coffee. It uses a light 50g sample roast because it is low-risk and gives fast feedback; after the first few roasts, move to the batch-size tier above that matches the goal and remains within the machine’s rated capacity. P3000 users should use P3000-specific minimum batch sizes and workflows instead, and S100-class or older machines should stay within their rated capacity and setup.

1. Confirm connectivity before the session. Check Wi-Fi and server status on the roaster screen before roasting; one experienced user made this a pre-session habit and advised not roasting when server status is offline 2 sources. Roest can roast without internet from the touchscreen, but live data is not visible when doing so source.

2. Update firmware deliberately. A common update procedure is to power on with the charge/drop handle open or lifted and let the machine connect and update 2 sources. Do not turn the machine off during an update; if an update takes longer than 15 minutes, contact support source.

3. Warm the machine consistently. Warm up with the roasting profile and allow at least 12 minutes before the first roast; another workflow uses a 15-minute timer while preparing batches, labels, bags, logs, and data 2 sources. Consistent starting conditions matter because small drum-temperature differences can change outcomes.

4. Run a 50g light sample roast. On compatible sample-roaster configurations, use the following as a first learning roast, not as a universal production profile:

These values synthesize a light 50g sample workflow shared for learning and tasting: start at 140°C ET, expect crack around minute 5 near 229°C ET, use 55 rpm and 80-to-60% fan, then drop after about 30 seconds; for light roasts, 11-12.5% weight loss was given as a ceiling 2 sources.

5. Do not over-interpret BT on tiny batches. On many standard or older setups, 50g BT readings may be unreliable enough that ET trend and sensory result matter more source. On the L100 Ultra, however, one expert reported that the BT probe is “pretty accurate” even for 50g, so this caution is hardware-dependent rather than universal source.

6. Record the outcome and repeat once. If two or three batches look the same, the issue is probably in the profile rather than random noise source. Change only one major variable at a time.

7. Use BBP before judging repeatability. Enable a between-batch protocol when roasting multiple batches so the drum temperature resets consistently source. BBP is a profile that runs between batches to return the roaster to a repeatable starting condition source. For details, see Cooling and Between-Batch Protocol.

8. Taste, then move up in batch size. Use 50g to learn and cup where the machine supports it; for coffee intended for brewing, move toward 125g, 150g, or 160-180g depending on sample availability, goals, and the machine’s rated capacity. Do not assume that a profile which works at 50g will scale directly.

Reading the First Roasts

First crack can be sparse and hard to interpret at small batch sizes. Do not expect many cracks on a 50g batch, and with small batches or sampling the cracks may be spaced far apart source. If the machine marks first crack early or late, use sight, smell, curve behavior, weight loss, and cup result rather than treating automatic FC as the only truth. For deeper guidance, see First Crack Management and Development Time and Drop Decisions.

Drop temperature should not be copied blindly. One user’s 212-213°C BT drop target was explicitly described as dependent on many things, and another experienced user warned that it is not safe to adopt someone else’s drop temperature as one’s own because buildup and seasonality can change the target even on the same machine source.

Manual, Power, Inlet, and BT Profiles

Beginners should start with a profile type their machine can actually control. Machines without inlet temperature need power profiles rather than inlet profiles, while BT/IT and inlet workflows depend on available sensors and machine generation. Power can be changed during roasting, and heat and air can also be adjusted manually during a roast source.

Do not treat Roest as interchangeable with Ikawa, Kaffelogic, Behmor, or conventional drum profiles. Experienced users repeatedly caution that roaster-to-roaster profile transfer slows learning and that profiles need to be adapted to the specific machine, batch size, and coffee 2 sources. For profile strategy, see Power Curve Strategies, Inlet Temperature Management, and Bean Temperature Profiling.

Airflow, Pressure, and Fan Settings

Roest airflow is not just a flavor variable; it also affects pressure, chaff movement, heat transfer, and readings. Profile fan percentage controls the exhaust fan, while a separate heater/inlet fan exists before the heater; the stock heater fan setting has been described as 3400 rpm on some machines source. Many users measure or infer pressure through the trier, but pressure readings vary substantially by machine, exhaust setup, voltage, altitude, fan settings, and modifications.

For a first week, avoid modifying heater fan RPM or chasing another user’s pressure percentages. Lowering heater fan RPM can increase heating-element risk, and changes should not be made casually 2 sources. Use Airflow and Fan Settings and Pressure Management before changing service-menu values.

Evaluation After Roasting

A new user should evaluate with more than the graph. Taste is necessary, but measurements such as color, weight loss, and density can help separate roast differences from brewing differences. One experienced roaster’s practical QC rule was that if graph and color are the same, the coffee will most likely taste the same, while also noting that graph alone is not enough source.

For the first few batches, record:

Coffees can change significantly after roasting, so do not judge all results immediately. Waiting a few days before cupping was specifically advised because coffees can change a lot source. For broader sensory workflow, see Cupping and Sensory Evaluation and Resting and Degassing.

Early Safety and Maintenance Habits

Stay near the roaster, especially when learning. Some experienced users manually drop rather than relying on end conditions because they do not want to leave the roaster unattended during automated operation source. Avoid workflows that depend on unverified auto-drop behavior.

curated Roast only with an appropriate ventilation and exhaust setup in place: coffee roasting produces smoke, odor, carbon monoxide, and hot chaff, so the exhaust path should be connected, unobstructed, and kept away from combustible materials before starting a session. curated If roasting indoors, exhaust outdoors where practical and use a working CO detector rather than relying on room air circulation alone.

Keep the exhaust and chaff path clean, and reduce batch size if beans are found in the exhaust; one practical rule was to drop the batch by 5g, for example from 185g to 180g source. Do not use force or metal on propellers because they can bend source. For maintenance intervals, exhaust cleaning, and safe materials, see Maintenance and Cleaning.

Where to Go Next

After the first few roasts, move from “getting a roast completed” to controlled learning:

• Use Batch Size Scaling before changing dose.
• Use Charge Temperature Guidelines before changing charge strategy.
• Use Rate of Rise Management and Roast Defects Troubleshooting when a roast is flat, baked, underdeveloped, tipped, or roasty.
• Use Calibration and Environment if repeatability changes with room conditions, voltage, firmware, or measurement setup.
• Use Roest Ultra Guide for Ultra-specific behavior, lower inlets, counterflow, pressure logging, and firmware differences.