Appearance: This is an informal scoring of the Number of Defects per 300 gram sample (2d/300g = 2 defects) and is scored by the Specialty Coffee Association of Americas Green Coffee Classification System in most cases. It should communicate the quality of the preparation and sorting of the coffee, but doesn’t directly indicate the “cup quality,” which is the most important rating of coffee. A zero defect score doesn’t mean that your 5 lbs. will have no defective beans either! The second number is Screen Size, expressed as 14/16 screen, or 18 screen. Once again, bigger isn’t better, and small beans of varied screen size can make for a great cup too (i.e.: Ethiopian coffee).