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How Do You Determine The First Crack With A Gene Cafe Roasting Machine?

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Joe Behm, CEO and founder of Behmor, tells me, “ When you start to detect the aroma changing from baked bread to caramelized sweetness , you know the sugars are developing and first crack is about to begin.” He tells me that this change in aroma is “like a bell getting ready to go off”, … Read more

What Happens First Crack?

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This is called “first crack”. At this stage, the beans enter an exothermic reaction, releasing built-up energy, steam, and carbon dioxide (CO2) from their core. They spontaneously expand and expel chaff, and start to give off smoke. When should first crack happen? There is no set time that first crack occurs Every roast machine or … Read more