first crack equals second crack. What does it sound like and when does it usually happen?

That first crack sound like popcorn, but slower. Little pop sounds that start sporadic and get crowded for a while. In the drum machine, usually starts at a range of temperature bean temperature 60-205 degrees Celsius, about 8-12 depending on the profile.

That second crack is faster and more crackly, like the sound of replenished paper but more intense. happening at higher temperatures, approximately 224-230 degrees. It's a seed sign starting in. Territory medium-dark to dark Zroast.

i just heard this term too. If you've heard of first crack, what's there to do? Did it just stop or was there time there?

in a small machine or a budget machine that insulates less, first crack is sometimes harder to hear because of drum noise. That's why a lot of combine saw temperature charts with listening. In a good seal machine, the sound is clearer.