What is steam distillation? This process is a widely used procedure of extracting the essential oil from plant material when the products are temperature sensitive and can be damaged by too high a processing. Steam Distillation is the most popular technique used to extract and isolate essential oils from plants for use in natural products.
Steam distillation is a separation method which is used for separating a mixture of components which are heat sensitive by using steam. The principle is based on variation in the boiling point of reducing the partial pressure of volatile components.
Steam distillation has important application in petroleum refineries, extraction of volatile compounds of plants which were used in perfumery and flavoring industries. Catnip is extracted using steam distillation. The steam distillate content has two parts, essential oil, and distillation water. The steam distillate is subjected to solvent extraction where the secondary essential oil is extracted. The oil is extracted from the entire plant using a distillation element consisting of a distillation tank, a condenser, and a separator.
Freshly harvested grass as such or after cutting into little pieces is loaded into the distillation tank. After closing the lid tightly, steam is entering into the tank. A large container called a Still, which is generally made of stainless steel, containing the plant material has steam added to it. The vaporized plant compounds travel to the condensation flask or condenser. Here, two separate pipes make it probable for hot water to exit and for cold water to enter the Condenser.
This process makes the vapor cool back into liquid form. The aromatic liquid by-product drops from the condenser and collects inside a receptacle underneath it, which is known as a Separator. Because water and oil do not mix, the Lavender essential oil floats on top of the water.
From here, oil is siphoned off. Some essential oils are heavier than water, such as clove essential oil, so they are creating at the bottom of the Separator. Read: How to Grow Artichokes in Pots. Save my name and email in this browser for the next time I comment. Fruit Farming. Sign in. Forgot your password? Get help.
Password recovery. Table of Contents. Last Updated: May 24, Author: Jagdish Reddy. AgriFarming App. Download now! Hi We would like purchase some essential oils from you…please get in touch with us. Is it advisable to extract lavender oil through super critical CO2 method. Write your comment here. Make a note that AgriFarming provides information only and does not sell any products.
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Polyhouse Production For Beginners. Because the condenser tube is angled down away from the still , gravity causes the newly condensed liquids to run down the tube and out, where they are collected together in a graduated cylinder. We monitor the temperature throughout this process, with the goal of keeping the temperature of the condensed liquids consistent. Lavender Hydrosol has many uses, including as a natural house cleaner. While it is considered a byproduct of the steam distillation process, because of its popularity, most lavender farmers including us save and sell the hydrosol.
The lavender essential oil is now floating on top of the hydrosol in the graduated cylinder. To collect it, we simply pour it off! As it gets to the bottom of the layer, we use a pipette to gather the very last of the oil from the surface of the hydrosol to avoid pouring any hydrosol in with the oil.
The entire process, from harvest to completion, takes approximately three hours, and anywhere from lavender plants. A three hour run can produce as little as 60ml or more than ml of lavender essential oil. Part of the nuance of lavender farming is taking good notes, doing good research, and paying attention to your crops to determine which lavender to distill and when to distill it.
Think of it this way: it takes 50 lbs of plant matter and three hours of distillation time not including the time to grow and care for the plants , just to produce a bottle or two of oil.
We are fortunate to have so many different varieties at our farm to experiment with. Over the years we continue to select and refine which varieties of lavender we and our customers love in their essential oil form — and we now offer 18 varieties of lavender essential oil for sale online! Hopefully, this blog gave you a better understanding of the time and process it takes to get that drop of essential oil from our farm to your diffuser. For the Love of Lavender offers advice for beginners to enthusiasts — from planting, growing, harvesting, and pruning, to uses, products, and lavender recipes — as well as a fun, unique look into the the world of a lavender farming family.
I was very excited to see your reminder email…. Unfortunately, and I realize it may be difficult, but can you explain the difference between all your varieties of lavender?
Thank you. Barb — hello! If you were planning to get oil to use for naturopathic topical treatments like bug bites I would recommend intermedia. If you were planning to use the oil for cooking, I would recommend angustifolia. The essential oil yield range 0. The concentrations of cineole range 6. The concentration of camphor range 6. Results suggest that lavender essential oil yield may not increase after 60 min DT.
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