Sri Lankan cinnamon oil steam condensing: separating heavy leaf oil from light bark distillates?
4 Answers from travellers
Condensing cinnamon oil requires specialized physical separation due to varying specific gravities. Cinnamon leaf oil has a specific gravity greater than water (1.03 to 1.05 g/cm³) due to high eugenol concentrations; when steam condenses, the oil sinks to the bottom of the glass Florentine separator flask, and floral water discharges from an upper overflow tube. In contrast, pure cinnamon bark oil (high in cinnamaldehyde) has a specific gravity close to 1.01-1.03 g/cm³, requiring operators to regulate condenser cooling temperatures around 35°C to facilitate clean density separation.
Re-circulating the aromatic distillate water (hydrosol) back into the boiler recovers dissolved volatile flavor compounds and boosts final extraction yields.
Glass separation equipment must be kept spotless; residual eucalyptus or citronella oils from previous distillation runs will cross-contaminate fine cinnamon aroma.
Store fresh essential oils in amber glass carboys sealed with ground-glass stoppers away from morning sunlight to prevent photochemical oxidation.
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