Molecular vs Short Path Distillation: Key Differences for Pure Extraction
Molecular distillation separates compounds by letting vapor travel a short distance at very low pressure, while Short Path distillation is the equipment setup that makes that travel path literal—only a few centimeters—to speed things up.
People confuse them because the names describe the same lab scene: a tiny gap under high vacuum. Saying “molecular” feels fancy, “short path” feels mechanical, yet both point to the same glass rig.
Key Differences
Molecular distillation is the method—how molecules move under ultra-low pressure. Short Path distillation is the tool—a compact glass tube that shortens the vapor’s walk. One is the science, the other the setup.
Which One Should You Choose?
If you already have the short path glassware, you’re doing molecular work. Choose based on budget and space: short path kits are tabletop; full molecular rigs can scale larger.
Examples and Daily Life
Picture a home-extracted lavender oil: the same clear benchtop glass coil is both a Short Path kit and the stage for Molecular distillation—just two names for the same gentle heat.
Are these two separate processes?
No. Short Path is the hardware, Molecular is the gentle technique it enables.
Can I use other stills for the same purity?
Other stills work, but the short path design keeps delicate aromas intact.