Vacuum distillation cooling or cold distillation is a process used in the production of spirits and is something that has been embraced by many of the premium gin brands who are leading the way when it comes to innovative distillation techniques.

Traditionally when producing gin, a mixture of neutral grain spirit and selected botanicals are heated to around 78°C. The downside to this method is that the heat can affect the botanicals, the mix can become overheated which damages the delicate components and therefore affects the overall aroma and flavour of the final product.

Full Turnkey Solutions

Aqua’s aim is to build a life-long relationship with our customers, becoming essentially a “one stop shop” for all your temperature control requirements, for now and the future. The three divisions of our business – Sales, Hire & Service – enable us to help clients every step of the way.

Our USP is our ability to offer clients a complete turnkey solution. We’ll work with you from initial site visit and system design to installation and commissioning. Our services include:

  • Free design consultancy, including AutoCAD drawings, 3D modelling and energy calculations
  • Mechanical and electrical installation – encompassing civil works, offloading & positioning, pipework installation, mains power and cabling, all CDM compliance, full project management and delivery
  • Aftersales support – including preventive maintenance plans to maximise product lifespan and efficiency

Our business is built on our core values of technical excellence, care, integrity and a “can do” attitude. We train all our people to be specialists in what they do – innovative engineers dedicated to providing practical, effective and efficient solutions supported by second-to-none customer service.

Case Studies

Typical Products Used In The Food And Beverage Industry

ENR Chillers

Cooling Towers

Adiabatic Coolers

Free Cooling

Cold Distillation

With cold distillation, a vacuum is created which then reduces the point at which the alcohol can be distilled. Standard cold distillation can bring this “boiling” point down to between 24-40°C. The reduction in temperature protects the delicate botanicals and enhances the flavour of the gin.

The cold distillation concept was further enhanced and in 2007 “sub-zero distillation” was born which effectively takes the distillation, or “boiling” point, down to as low as -13°C. This ensures the botanicals retain their real flavours which is crucial to artisan gin producers.

Aqua Cooling has worked with several distillers in the development and design of cold and sub-zero processes. As well as some of the leading gin brands we’ve also worked with vodka and whiskey distillers.

Gin Crafting Process

At the beginning of the gin crafting process, selected botanicals are macerated in grain spirit at room temperature. After a time, this mixture is put into a vessel and the pump pulls the air and vapours from the distillation container, reducing the air pressure and causing evaporation at a lower temperature. The higher the vacuum, the colder the temperature at which the aromatics and alcohol can be distilled and subsequently less damage to the flavours.

As the vapour molecules move into the condenser, they move against the cold tubes which are cooler than the condensation point of the vapour, turning it back into liquid. Vacuum distillation techniques like the above are also used in specific chemical and pharmaceutical processes.

Specialist Cooling Equipment

Our specialist systems commonly involve a vacuum pump, jacketed vessels, low temperature chillers and bespoke heat exchangers which act as vacuum condensers.

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Why Call Aqua?

Established in 2001, Aqua Group are a market leading force in the design and supply of innovative temperature control solutions. Our team has a vast product knowledge base and years of application experience and is focused on finding the most energy efficient and price competitive solution for your specific business needs.

Whether you’re an end user looking for a bespoke cooling system design or a trade customer trying to source a single chiller unit, our specialist engineers are on hand to help. Aqua Group’s core values – Technical Excellence, Can-do Attitude, Integrity and Care – are at the heart of everything we do, and we always strive to achieve the highest level of customer service experience.

For help with product selection and technical advice call our sales team today on 0333 004 4433.