When sourcing Fat Alkalized Cocoa Powder, the most critical specification is the fat content, typically categorized as 10-12% (standard) or 20-24% (high fat). High-fat variants provide a richer mouthfeel and better flavor stability in premium confectionery. Additionally, monitor the pH level, which for alkalized (Dutch-processed) powder should range between 6.8 and 8.1. A higher pH indicates heavier alkalization, resulting in a darker color and milder, less acidic flavor profile. Ensure the fineness meets industry standards, usually 99% through a 200-mesh screen, to prevent grittiness in finished products.