First Lesson in Incense Art: How to Choose a Good Agarwood Material?

First Lesson in Incense Art: How to Choose a Good Agarwood Material? A Four-Step Method

• **Define the purpose first**: For daily use in an electric burner: small chips and shavings from plantations or second-grade regions; for powder: oil-rich chips; for tasting sessions: whole shavings from original regions; for collection: whole sinking-grade pieces with laboratory reports.
• **Step 1 — Smell the top and base notes**: Test on a low-temperature electric burner (100–120°C); good material has three stages: opening, a stable middle, and a base that settles. Piercing sweetness without a base note indicates oil soaking or synthetic perfume.
• **Step 2 — Read the oil lines**: Natural resin follows the vessels and wood veins with gradual transitions; uniform, sharply black color indicates pressing or oil injection.
• **Step 3 — Clarify the source**: Region (original or expanded), resin formation method (wild / fungal inoculation / full-tree resin formation), and the presence of a laboratory certificate; two basic criteria: alcohol-extracted materials and chromatographic profiles.
• **Step 4 — Budget by purpose**: 60% for reliable daily materials, 30% for a deserved upgrade, 10% for learning lessons; with a permanent tasting notebook.
• **Pitfalls**: Density alone does not determine quality (good Hainan agarwood often floats), permeability is not quality, a story is not proof, and "too-cheap" auctions are often fake.
• Terminology: agarwood oil, qinan, *Aquilaria sinensis*, sesquiterpenes, chromones.