Time to spill: Uneven roasting is a common pain point, but it’s fixable with the right adjustments. You’re working with Brazilian Catuai-Catuai yellow beans from 1200 meters—high-altitude beans known for their density and slow development. At 82 points, they’re already a premium crop, but your roast profile is revealing a flaw. The weight loss from 800g to 708g suggests a medium-dark roast, yet the unevenness points to a deeper issue.
The first crack timing—between 7 and 8.3 minutes—is a clue. That range is typical for medium roasts, but the inconsistency in color and texture suggests uneven heat distribution. Catuai beans, especially yellow varieties, are tricky because their size and density vary. Larger beans absorb heat slower, leading to underdevelopment if not monitored closely. You’re not alone in this struggle; many roasters face similar challenges with high-altitude beans.
The key lies in balancing two factors: bean uniformity and roast curve control. Sorting your beans by size before roasting can mitigate some inconsistencies, but it’s not a silver bullet. Instead, focus on the roast’s flow. A slower, more deliberate ramp-up during the early stages can help smaller beans catch up. Also, check your airflow settings—too much or too little can create hotspots. The chocolatey finish you’re getting is a sign the core is developing, but the unevenness suggests the outer layers aren’t syncing.
Your beans are ideal for lattes, which is great, but there’s room to elevate their potential. A more even roast would bring out brighter acidity and a cleaner body, making them versatile for both espresso and pour-over. The fix isn’t about forcing perfection—it’s about refining your approach to match the beans’ unique profile.
Key points: Adjust your roast curve to ensure even heat distribution, sort beans by size to reduce variability, and fine-tune airflow to prevent hotspots.
Key points: Adjust your roast curve to ensure even heat distribution, sort beans by size to reduce variability, and fine-tune airflow to prevent hotspots.
What’s your approach to fixing uneven roasts? Share your secrets below.
Questions & Answers
How long does a roast take to cook?
Cooking time depends on the cut and size. Roast beef takes 15–20 minutes per pound at 350°F. Check internal temperature for doneness.
What temperature should I cook a roast at?
Roast at 350°F for even cooking. For a medium-rare finish, aim for 135°F. Adjust time based on roast size and cut.
Information sourced from industry reports and news outlets.
