What Does Rotovap Do For Cocktails

A rotary evaporator, also known as a rotovap, is a device used in chemistry for the efficient and gentle removal of solvents from samples by evaporation. In the context of cocktails, a rotovap equipment can be used to create flavored spirits or distillates with concentrated flavors.

By using a rotovap machine, mixologists can extract delicate flavors from fresh fruits, herbs, and other aromatic ingredients without subjecting them to high heat, which can degrade their flavors. This process allows for the creation of highly concentrated and pure flavor essences that can be used to enhance cocktails.

For example, a mixologist might use an evaporator to extract the essential oils from fresh basil to create a basil-infused spirit, or to concentrate the aroma of ripe strawberries for a strawberry-flavored distillate. These highly aromatic and flavorful distillates can then be used as key ingredients in innovative and sophisticated cocktails, adding depth and complexity to the overall drinking experience.

In summary, a rotovap system is utilized in the cocktail industry to create intensely flavored and aromatic distillates that can elevate the quality and creativity of cocktails.

 

Among the preparation methods of cocktails, there is a method called molecular bartending, which has developed rapidly in recent years and has also been widely favored by the majority of bar culture lovers.

The basic method of molecular bartending is to use rotovap to prepare the ingredients of cocktails. The natural ingredients in fruits, petals or other ingredients can be extracted by the characteristic that chemical rotary evaporator can distill ethanol at room temperature, so as to adjust the aroma, taste and color of cocktails. Because all the extraction processes are carried out at room temperature, the color, fragrance and taste of various natural ingredients are preserved to the maximum extent.

A large number of studies show that the main components of aroma emitted by fruits are low-grade alcohols, esters, aldehydes and other organic components, and most of these organic substances can be extracted from pulp or fruit pulp by ethanol. Taking blueberry as an example, the main components of blueberry aroma are linalool, α-terpineol, (E)-2- hexenal, hexanal and methoxyphenyl oxime.

The basic extraction process is as follows: Making blueberry into juice with a juicer, adding a proper amount of brandy, fully mixing, placing the mixed solution in a sample bottle, distilling with a rotary evaporator, collecting the distilled ethanol for use, continuing to evaporate the residual water, and then mixing the residual liquid in the sample bottle with the ethanol prepared in advance. The preparation component of a cocktail can be prepared. Fine adjustment on any of the above links will cause differences in aroma, taste and color of this component.

 

Distillation and vacuum evaporation

The rotary evaporator is a very complicated tool, but it can produce the best effect so far. Liquor or other liquids containing various mixtures or raw materials can be distilled by controlling the pressure. By reducing the pressure, the boiling point of mixture evaporation can be controlled. Like the traditional boiling method, the liquid evaporates, becomes gaseous, and changes back to liquid when it is cold. The final liquid or distillate is rich in the flavor of the original immersion liquid and mixture. The specific process is as follows:

1. Put the wine and the mixture you want to inject (from herbs and spices to artificial products such as peanut butter) into an evaporation bottle.

2. Before putting the evaporation bottle into the water bath, preheat the water bath to the specified temperature.

3. Reduce the air pressure of evaporation system by vacuum pump, and then reduce the boiling point of distillate.

4. The rotary evaporator puts the evaporation bottle into the pre-heated water bath pot, and the rotary evaporator ensures uniform heating.

5. The liquid in the evaporation bottle begins to evaporate after boiling, and the gas rises to the condenser, where the liquid in the cooling water circulation machine cools it.

6. After cooling, the gas changes back to liquid state and drops into the recovery bottle through the condenser.

7. Distillate highly concentrates the flavor of the original mixture. Then mineral water can be added for rectification, and then it can be used.

Small rotary evaporator is usually suitable for families or small laboratories, and has the characteristics of portability and easy operation. It consists of a glass round bottom flask and a rotating shaft. The rotating shaft drives the liquid in the flask to rotate, thus increasing the evaporation area. This small rotary evaporator is usually equipped with a condenser, which can effectively recover organic solvents.

The large rotary evaporator is suitable for large-scale laboratory or industrial production, and has the characteristics of high efficiency and large evaporation capacity. It usually consists of a stainless steel or glass round bottom flask and a rotating shaft. The liquid is violently disturbed by high-temperature heating and high-speed rotation, thus increasing the evaporation area. This large rotary evaporator is usually equipped with high-performance condenser and collecting device, which can effectively recover organic solvents and products.

 

When making cocktails, a small rotary evaporator is usually used to extract the aroma and taste of natural ingredients such as fruits and petals, so as to prepare cocktails with unique flavor.

To get your own rotary evaporator to make a cup of cocktail after work, please contact us sales@achievechem.com

      

The rotovap can make various cocktails

 

Margaret: Extract the aroma of lemon peel and agastaches, and make a Margaret cocktail with unique flavor.

Paradoxe: Extract the aroma from coffee beans to make a Paradoxe cocktail with strong coffee flavor.

Qiqi: Extract the aroma of kiwi fruit and make a Qiqi cocktail with fresh fruit aroma.

Sangria: Extract the aroma of red wine to make Sangria cocktail with rich fruit flavor.

Belarus: Using rotary evaporator to extract the aroma of coffee and milk, a Belarusian cocktail with strong coffee flavor was prepared.