Processing-Based Roast Profile Starting Points

A community member described an attempt to categorize green coffees by processing method as a personal cheat sheet for choosing roast-profile starting points. The stated goal was not to create a final rule set, but to find a better initial profile direction. source

Washed, Anaerobic, and Natural Are Not Interchangeable

The discussion emphasized that “washed anaerobic” should not be treated as equivalent to regular washed/non-anaerobic coffee. One proposed heuristic was that washed anaerobic coffees may behave more like naturals than like standard washed coffees, and may tolerate more heat early in the roast, with a suggested rough roast-time range around 5–6 minutes. Treat this as a community heuristic, not a validated rule. source

For regular washed, non-anaerobic coffees, the same member suggested that they can often be roasted with less upfront heat and over a longer duration, roughly 7–8 minutes. Again, this was presented as a starting-point idea rather than a universal prescription. source

The member also argued that using a natural-process profile on a regular washed coffee, or a regular washed profile on a natural coffee, is unlikely to produce the best result. This reflects the broader idea that processing method can be one useful input when choosing an initial roast approach. source

Caution: Avoid Over-Generalizing

A trusted community member cautioned that broad general rules may not be possible, because roast preferences and bean behavior vary. They also noted that some roasters object to very short roasts, such as 5-minute roasts, regardless of bean type. Use processing categories as a starting hypothesis, then adjust based on the specific coffee, machine behavior, sensory results, and personal preference. source

Open Question: Variation Within Naturals

The conversation raised, but did not resolve, whether naturals should be subdivided further in the same way that washed coffees might be separated into anaerobic and non-anaerobic categories. This remains an open community question rather than a settled guideline. source