The Proper Vacuum for Concentrating Extract Using a Rotary Evaporator
Selecting the right vacuum pump for concentrating extract using a rotary evaporator is essential to minimize process time and to help prevent product loss
contributed by BrandTech Scientific, Inc. |
After winterized extract has been filtered, a rotary evaporator, or rotavap, is used to concentrate the extract by evaporating off most of the remaining ethanol. Major objectives in this process are to quickly concentrate the mixture of crude oil and ethanol to the point where it is only a few percent ethanol, to recover the evaporated ethanol for later use, and to keep the evaporation process under control to prevent loss of crude oil.
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