paahduttaja
Paahduttaja is a Finnish noun that translates roughly to "roaster." It refers to a person or a device that performs roasting, most commonly of coffee beans but also of other foods such as nuts. In everyday Finnish, the more common term for the person who roasts coffee is paahtaja; paahduttaja is less common and is mostly found in technical or coinage contexts.
As a person, a paahduttaja oversees roasting profiles, controlling temperature, duration, and roast level to influence
Etymology: The term is formed from the verb paahdata/paahduttaa with the agent suffix -tuttaja, yielding paahduttaja.