When evaluating a cocoa bean sorting machine, prioritize optical sorting technology, specifically CCD color cameras or NIR (Near-Infrared) sensors, which can detect moldy beans, flat beans, and foreign materials. Ensure the machine offers a sorting accuracy of ≥99% to maintain high-quality chocolate production. Additionally, check the throughput capacity (kg/h) to ensure it matches your fermentation and drying line speed, and look for food-grade stainless steel (SUS304/316) construction to meet hygiene standards.