Grade SS: Elegant, pleasant, woody, spicy, honey sweet and nutty.
Grade S+: Light sour, rich sweet, iconic Crassna natural fragance.
Grade S: Light sour, dry sweet, bitter, pleasant woody.
Grade P: Woody, balsamic, greasy and rich Crassna flavour.
Grade A: Average sour, dim sweet, smoky, woody.
Grade B: Typical Agarwood woody, smoky, peppery and phenolic.