Sandalwood oil comes from the heartwood of mature sandalwood trees, especially those found in regions like Marayoor and parts of Karnataka.
Unlike most trees, sandalwood is valued not for its outer wood, but for its inner heartwood , which contains the aromatic oil. The tree must typically grow for 15–20 years or more before it develops sufficient oil content.
Step 1: Harvesting the Tree
Careful Selection
* Only mature trees are selected
* Younger trees contain very little oil
Whole Tree Extraction
* The entire tree is uprooted—not just cut
* Even roots are used because they contain high oil concentration
This is why sandalwood is so valuable— every part of the tree is utilized .
Step 2: Removing Sapwood
After harvesting:
* The outer layer (sapwood) is removed
* Only the dense inner heartwood is retained
The heartwood is darker, heavier, and richly aromatic—it is the core raw material for oil extraction.
Step 3: Chipping & Powdering
The heartwood is then:
* Cut into small chips
* Ground into coarse powder
This increases the surface area, making oil extraction more efficient.
Step 4: Soaking & Preparation
Before distillation:
* The powdered wood is soaked in water
* This softens the material
* Helps release the oil during heating
Step 5: Steam Distillation (Core Process)
This is the most crucial step.
How it works:
* The soaked wood powder is placed in a distillation chamber
* Steam is passed through it for several hours (sometimes days)
* Heat causes the oil to evaporate along with steam
The mixture of steam + oil vapor is then condensed back into liquid.
Separation
After condensation:
* Oil separates from water naturally
* Sandalwood oil floats or settles depending on density
This collected oil is the pure sandalwood essential oil .
Step 6: Filtration & Storage
The extracted oil is:
* Filtered to remove impurities
* Stored in airtight containers
Aging
Like fine wine, sandalwood oil improves with age:
* Aroma becomes deeper and smoother
* Value increases over time
Why Sandalwood Oil is So Valuable ?
High Yield Difficulty
* Large quantity of wood → small amount of oil.
* A mature tree yields only a limited amount.
Time Factor
* Trees take decades to mature.
Unique Aroma
* Woody, sweet, long-lasting fragrance.
* Acts as a natural fixative in perfumes.
Uses of Sandalwood Oil
Perfumery
* Base note in luxury perfumes
Spiritual Use
* Used in incense and religious rituals.
Ayurveda & Skincare
* Cooling and anti-inflammatory properties.
Sustainability & Regulation
Due to overexploitation (including during the era of Koose Munisamy Veerappan):
* Sandalwood is now heavily regulated in India.
* Government controls harvesting and trade.
* Sustainable plantations are being promoted.
Regions like Marayoor are protected to preserve natural populations.
Final Perspective
The journey of sandalwood oil—from a slow-growing tree hidden in the forest to a tiny vial of fragrance—is a story of time, patience, and precision .
It explains why sandalwood has been treasured for centuries—and why protecting these forests is not just important, but essential.