3 Principles of Coffee Bean Roasting: Prin. 1: Relatively high level of heat should be provided in the early stages of bean roasting. Prin. 2: The development of BT should always be at a slow pace. Prin. 3: First crack should occur at 75%-80% of the way throughout the roasting process.

3 Principles of Coffee Bean Roasting: Prin. 1: Relatively high level of heat should be provided in the early stages of bean roasting. Prin. 2: The development of BT should always be at a slow pace. Prin. 3: First crack should occur at 75%-80% of the way throughout the roasting process.