Physical properties of three varieties of canarium schweinfurthii nuts (canarium schweinfurthii small (CSHTS), canarium schweinfurthii long (CSHTL) and canarium schweinfurthii large (CSHTLRG)) were studied at three different moisture contents (10.20%, 17.23% and 25.06%) wet basis. Maximum and minimum values of geometric dimensions, shape, mass, density and angle of friction were obtained experimentally. The results showed that moisture content had no effect on the geometric dimensions but significantly affected mass, density and surfaces area. The nuts are oblong shaped with surface areas of 336.7 mm2, 301.55 mm2 and 164.28 mm2 for large, long and small varieties respectively. The porosity of all the nut varieties studied decreased as moisture level increased and the density values were higher than one, hence cannot be separated by floating. Rubber surface had the highest coefficient of friction than the other material surfaces studied. All physical parameters investigated had good relationship (high R2 values) with moisture content.

Keywords: Properties, canarium schweinfurthii, nuts, density, shape