Walnuts are light brown in colour. The walnuts have a slight bitter taste, which is characteristic to this nut and the texture is firm. Physical and Chemical Examination: Damaged: <3 % Foreign Matter: <0.5% Odours/Flavours: None Moisture content: <7 % FFA: <2 % PV: <5 Meq/kg Microbiological Examination: Aflatoxins B1+B2+G1+G2: <1 μg/kg E.coli: <10 cfu/g Salmonella spp: Absent Staphylococcus: Absent Yeast & Mould: <10 000 cfu/g Total Plate Count: <50 000 cfu/g