As a common equipment in labs and productions, a rotary evaporator has a quite long history. With the constant development and improvement of rotary evaporator, it can not only used for evaporation, concentration, crystallization, drying, separation, and solvent recovery in pharmaceutical, chemical and bio-pharmaceutical fields, but even plays an important role in the cooking area. So how to cook with a rotary evaporator? Let’s further discuss it below.
How to Cook with a Rotary Evaporator?
Firstly, a rotary evaporator can be used to concentrate all kinds of juice through removing water. With a rotary evaporator, people can do it easily for cooking, and the juice concentrated can possess a much better taste.
Secondly, several kinds of food can be extracted by a rotary evaporator as well. For example, the desired flavors can be extracted from a blend of alcohol, herbs and fruit.
Thirdly, extracting brandy and syrup from wine is another using way.
Fourthly, because the complex composition of food samples, proteins, fats, and sugars often cause interference in analysis and detection. Therefore, rotary evaporator is often used for treatment in advance.
Last but not least, a rotary evaporator also plays an important role in the process of making coffee. As is known to all, coffee is a kind of food material that is ubiquitous in the market. It uses coffee beans and/or coffee products (ground coffee powder, coffee extract or its concentrate) as raw materials. It can add food additives without adding other food raw materials. It is a solid beverage that has been processed. In the process of making coffee, a rotary evaporator can be used to concentrate coffee by removing water from it.
Why can a Rotary Evaporator Used for Cooking?
Because a rotary evaporator can be used for distilling a mixture into its components according to their different volatility. The desired liquid can be obtained through the evaporation and condensation process. As well, the food can be separated from one another without altering them by rotary evaporation.
On the other hand, cooking with a rotary evaporator has a great variety of merits. Firstly, a rotary evaporator is operated under vacuum condition, which efficiently lowers the boiling points of materials. The relatively low temperature can preserve the original taste of materials. Secondly, the evaporation flask is rotated by a motor and heated by a water bath or oil bath, increasing the evaporation area and speed the distillation process. It keeps the mixture evenly mixed and heated. Furthermore, the whole process can be clearly observed so that any adjustment can be done in time due to a rotary evaporator is made of transparent glass.