specification of butter beans 2017 (dry white beans large size) 1. origin: South Africa 2. crop: 2017 3. quality: grade one 4. specifications: size 50-60pcs/100g moisture 16% max; admixture 0.2% max; imperfect:2% max; 5. international certificates phytosanitary certificate quality certificate issued by ciq. certificate of origin and other certificates you request. basic characteristics large white beans typically white or cream colored, and are flat and slightly curved in shape. they typically measure between 0.25 and 1 inch (approximately 0.6 to 2.5 cm) in length. some varieties are speckled with brown or deep purple spots, though most of the time these color aberrations are limited to home-grown varieties the vast majority of commercially-available beans are uniformly cream colored.