Product Description The Coffee Retention / Sample Screen Set is an indispensable laboratory tool used worldwide by coffee cooperatives, exporters, cuppers, Q-graders, and traders for fast, accurate green bean size classification and defect screening. Manufactured from food-grade stainless steel with precision-punched round (Arabica) or oblong (Robusta) holes, this professional 14-piece set covers sizes 8 to 20 (in ½ increments) plus two solid lids. Each screen is 64 mm diameter × 30 mm height with reinforced rim and laser-etched permanent size marking — built to withstand decades of daily use in busy grading labs. Compliant with SCA, CQI, and ICO standards, it is the fastest way to determine screen size distribution, calculate retention percentage, and separate peaberry, elephant beans, or broken beans before cupping or export.

Product Attributes • Type: Full 14-piece professional coffee grading screen set • Material: 100 % food-grade stainless steel (AISI 304) • Hole Shapes: Round holes (standard for Arabica) – oblong available on request • Sizes Included: 8/64″, 9/64″, 10/64″, 11/64″, 12/64″, 13/64″, 14/64″, 15/64″, 16/64″, 17/64″, 18/64″, 19/64″, 20/64″ + top & bottom solid lids • Screen Diameter: 64 mm (standard international size) • Height per Screen: 30 mm • Marking: Permanent laser-etched size on every rim • Stackable: Perfectly interlocking design • Weight (full set): 1.8 kg • Carry Case: Optional wooden or plastic storage box • Cleaning: Dishwasher-safe or ultrasonic • Warranty: Lifetime against manufacturing defects

Best Possible Applications • Green Bean Grading: Determine exact screen size profile (SC16, SC17/18, etc.) • Export Contract Compliance: Prove retention % (e.g., 90 % above screen 14) • Cupping Sample Preparation: Separate uniform lots for accurate tasting