how do you get charge temp to start the roasting?

charge temp is one of the first variables that needs to be set in profile. There's no universal number because it's highly dependent on machines, batch size, and the profiling is desired. The broad range is 160-220 degrees for a lot of setup, but some profiles could be beyond this range.

cara cari charge temperature yang ok untuk mesin kamu: mulai dari rekomendasi yang sering disebutkan untuk mesin sejenisnya, roast, lihat bagaimana bean temperature bereaksi setelah charge (apakah turun terlalu dalam, apakah momen turning point ada di timing yang wajar), adjust ke atas atau ke bawah di batch berikutnya.

turning point, which is the point where the bean temperature stops going down and starts going up after the cold beans of -charge into the hot drum, it's a useful indicator. The ideal turning point is usually between 1-3 minutes after the charge for normal batch size.

practically: warm up engine used to be stable at target charge temp for 5-10 minutes before drop beans. Don't drop so soon the numbers on the display show the target because the machine hasn't fully stabilized.