"Even among trees of the same species, not every tree will produce agarwood," says Shih Chi-hsun's wife Hung Pao-chen. "Tree placement provides no guarantees. Sometimes, differences in trees 'exposure to the sun can result in different kinds of aromas. If there is ample sun, the resulting resin is richer and thicker, and the aroma of the incense will be more concentrated."
「即便是同一種香樹，也不見得每株都會形成『沉』，形成『沉』的位置也不一定；有時只因為日照面不同，所呈現的氣味就會不同，日照充足的，凝聚的油脂較為豐厚，香氣也往往更濃郁。」