On my last couple of roasts, Ive noticed some alarming spallation happening to my beans (attached pic of the abused beans). The last couple of roasts (popper) Ive done have been on cold, rainy days here in Hobart, and Im not sure whether it is the increased humidity, or perhaps increased roast times, leading to my beans spalling in this appalling manner 
Physical damage from the popper (it never used to happen, but maybe with a longer roast time, some other process is occuring)? Humidty effects?
Any similar experiences or thoughts?


Physical damage from the popper (it never used to happen, but maybe with a longer roast time, some other process is occuring)? Humidty effects?
Any similar experiences or thoughts?


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