What transition does SC (Second Crack) signify in coffee roasting?

• A. Beginning of the roasting
• B. Transition to dark roast
• C. End of the roasting
• D. Cooling phase of roasting

Answer: (B)

The transition that the Second Crack (SC) signifies in coffee roasting is associated with the shift toward a dark roast profile. When coffee reaches the second crack, it indicates that the internal structure of the beans has expanded significantly, and the sugars within are undergoing caramelization and further development due to the heat. This stage typically occurs after the first crack and marks a point in the roasting process where flavors become more pronounced, often resulting in a bolder, more robust taste.

As the roast progresses beyond this point, the flavors will intensify and may start to take on characteristics typical of dark roasts, such as deeper chocolate tones, smoky nuances, and reduced acidity. Therefore, understanding the implications of the Second Crack is crucial for a roaster aiming to control the final flavor profile of their coffee, moving it into the realm of dark roasts. This is why the transition to dark roast is the correct answer, reflecting the critical role of Second Crack in guiding roasters to achieve their desired outcome.