What is a Rotary Evaporator?
A rotary evaporator, or rotovap, is a piece of laboratory equipment used to purify cannabis extracts and remove residual solvents after extraction.
Rotovaps efficiently remove solvents from cannabis oils through evaporation while preventing damage to terpenes and cannabinoids.
Rotovaps work using a combination of heat, vacuum pressure, and rotation to quickly evaporate volatile compounds from the cannabis extract solution.
The extract is placed in a round bottom flask, which is attached to a rotating axis inside a heated water bath.
As the flask slowly rotates, the solution spreads out in a thin film over the glass, increasing surface area and evenly distributing heat.
This helps solvents evaporate at lower temperatures. Vacuum pumps reduce solvent boiling points and accelerate evaporation.
The evaporated solvent vapor travels through tubes into a condenser, where it liquefies again and drips into a collection vessel for reuse or disposal.
After about an hour of spinning under vacuum pressure, most of the remaining solvent is removed from the cannabis extract, leaving behind pure, concentrated oil.
Rotovaps provides cannabis extractors and manufacturers with an advanced tool for producing high-quality and safe products through precise solvent removal and terpene preservation.