Rectification Method

When an essential oil contains any impurities, it can be purified by re-distillation, either in steam or in vacuum and this purification of oil by re-distillation is referred to as rectification.

This process is used to make oils of standard quality.An example of rectification is eucalyptus oil.

For more information on extraction methods, please visit the following pages:

• Water Distillation
• Steam Distillation
• Hydro Diffusion
• Fractional Distillation
• Rectification
• Cohobation
• Sponge Expression
• Coldpressed Expression
• Machine Abrasion
• Solvent
• Maceration
• Enfleurage
• Hypercritical Carbon Dioxide (CO2)
• Florasol