Shape Oval or kidney-shaped
Size Approximately 1-2 centimeters in length
Color Dark red, but can also be light red, white, or spotted
Texture Smooth, shiny surface
Skin Thickness Thin, easily edible
Weight Typically 100-200 milligrams per bean
Odor Earthy, mild aroma
Taste Nutty and slightly sweet
Moisture Content Approximately 12-14%
Density Around 0.8-0.9 g/cm³
Shelf Life Can be stored for up to 1-2 years if kept in a cool, dry place
Nutritional Content Rich source of protein, dietary fiber, and various vitamins and minerals