As per AFI standard:
Color: light brown, light ivory, light ash-grey or deep ivory. Pieces may show light brown speckles or blemishes on the surface, provided that not more than 20 percent of the pieces are affected.
Size description: Grains, granules, or baby bits. Passing through Sieve Numbers =2.8 mm and Retained on Sieve Number =1.7 mm.
Moisture: max 5%
Defects: 10% max in total"