The distillation performed on a laboratory scale often uses batches of the liquid mixture whereas industrial distillation processes are generally continuous, requiring a constant composition of the mixture to be maintained.

Steam distillation is often used to separate heat-sensitive components in a mixture. The process establishes a high heat-transfer rate without the need for high temperatures. The resulting vapor is condensed to afford the required distillate. The process of steam distillation is used to obtain essential oils and herbal distillates from several aromatic flowers/herbs.

This steam distillation apparatus is supplied complete with a Glas-Col O408 1000mL heating mantle, an Electrothermal MC221 variable power controller, a 1000mL distilling flask with stopper and verification thermometer (max 130°C) and a 1000mL two-neck distilling flask - as seen in photos.