The First Roast Log That Needs Expert Eyes
If you’re chasing precision in your roast, this log is a masterclass in what not to do. A user’s first attempt with a Costa Rica Pérez Zeledón washed bean reveals a classic rookie mistake: hitting first crack too early. The roast started with a preheat at F9/P9, then dropped to F8/P4 for charging. Yellowing emerged around 2:00, aroma hit at 2:30, and internal temps climbed to 383°F. By 3:00, temps hit 420°F, and the bean turned brown by 4:00. The first crack arrived at 5:30, followed by a rushed development phase. The result? A 10% weight loss and a roast…





