Cameroon Robusta Grade 1 (Screen 18+) is a premium green coffee bean distinguished by its large size and rigorous defect limits. It is highly sought after for espresso blends and commercial instant coffee production.
Screen Size: Minimum 90% of beans retained on Sieve Screen 18 (7.1 mm); tolerance of up to 6% for Screen 16.
Moisture Content: Maximum 12.5%.
Foreign Matter (Admixture): Maximum 0.5% (typically restricted to 0.1% - 0.2% for top-tier lots).
Black & Broken Beans: Maximum 2% by weight (often restricted to 0.1% - 1% max in strictly premium batches).
