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EVAPORATORS

Evaporators are used to concentrate solutions and reduce their moisture content

Evaporators are used for concentrating solutions by removing excess moisture in numerous industrial processes. They are utilized across various industries to increase the concentration of liquid products, leading to enhanced nutritional density, extended shelf life, and reduced transportation costs. This comprehensive guide explores the functionality, benefits, and applications of evaporators, and their applications in industrial processing.

What are evaporators

Evaporators are designed to separate and remove the solvent, typically water, from a solution, leaving behind a more concentrated product. The process involves heating the solution to facilitate vaporization, often followed by the condensation of the vapor back into liquid form.

Concentration process

The operating principle of evaporators revolves around these key steps:

  1. Heating: The solution is heated, causing the solvent to evaporate and form vapor.
  2. Vaporization: The vapor is collected and separated from the solution's components.
  3. Condensation: The collected vapor is cooled and condensed back into liquid form, creating a concentrated solution.

Advantages of using evaporators

  • Enhanced Shelf Life: Concentrating solutions reduces water content, extending the shelf life of the end product.
  • Cost Efficiency: Evaporation minimizes transportation costs by reducing the volume of liquid that needs to be transported and stored.
  • Product Customization: The concentration process allows manufacturers to customize product characteristics such as viscosity and taste.
  • Product Development Versatility: Evaporators are essential for producing concentrated products like jams, syrups, and fruit concentrates.

Advantages of vacuum concentration:

Liquid substances in a solvent evaporate quickly when boiling, with the boiling point of the solvent changing due to alterations in pressure. When pressure increases, so does the boiling point, and when the pressure decreases, the boiling point decreases as well. For example, milk boils at 101 kPa at a temperature of 100 ℃, whereas under vacuum conditions of 82.7 to 90.6 kPa, the boiling point dramatically reduces to just 45 to 55 ℃, facilitating efficient evaporation. Moreover, by avoiding exposure to high temperatures, vacuum concentration prevents the degradation and loss of heat-labile components, ensuring the preservation of nutrients and aromatic compounds. Specifically, certain compounds such as amino acids, flavonoids, phenols, vitamins, and others remain shielded from thermal damage. Additionally, for some substances like carbohydrates, proteins, pectin and viscous materials, low-temperature cooking helps to facilitate evaporation, while retaining their beneficial properties.

Applications across industries

Evaporators find applications in diverse sectors:

  • Food and Beverages: Evaporators concentrate fruit juices, dairy products, and other liquids for a higher flavor concentration and a longer shelf life.
  • Pharmaceuticals: They are used for processing medicine, creating concentrated solutions for different medical applications.
  • Chemical Industry: Evaporators concentrate chemicals, making them easier to handle, transport, and store.
  • Waste Management: Evaporators aid in the treatment of industrial wastewater by separating water from contaminants.

Partnering with FoodTechProcess for evaporation solutions

FoodTechProcess offers advanced evaporation solutions including vacuum evaporators, batch concentration units and pilot plants designed to evaporate moisture across many different industrial processes. Evaporators are engineered to offer optimal and reliable concentration, contributing to consistent product quality. We offer low-temperature vacuum evaporators (distillers) with and without a "heat pump", the processing temperature (evaporation of water) ranges from 35 degrees Celsius. Can be used for thickening oils, e.g. hemp oil, etc.

We offer wide range of evaporating equipment for a wide range of products. Price depends on the capacity and product used.

For more information, send us an email to sales@foodtechprocess.com

Deaerator is used for the removal of air bubbles from the puree. Price depends on the required volume and production capacity.

For more information, send us a request. 

Price depends on the capacity and product. 

The compact line of double-type vacuum cooking kettles comprises a complex of batch food cooking units designed for periodic thermal processing, vacuum mixing, and deaeration of various products under sub-atmospheric pressure.

  • Material: Stainless steel
  • Principle of operation: Batch mode
  • Country of origin: Slovakia
  • Volume: 2x300l/ 2x600l

The price is indicated with a semi-automatic control panel

The vacuum cooking kettle is designed for use in public catering establishments (restaurants, hotels, catering companies) and small manufacturing businesses. This equipment enables boiling, blanching, frying, evaporation, pasteurization, mixing or stirring.

  • A unique multifunctional device
  • Possibility to cook/fry under atmospheric or vacuum conditions
  • Laboratory version of a Vacuum Fryer
  • Built-in condensation and secondary steam removal system
  • Intense electric heating
  • Sectional basket with a lid
  • Built-in system for separating and removing excess liquid from the product
  • Heating: Electricity
  • Material: Stainless steel
  • Heating power, kW: 5
  • Volume: 20l
  • Oil volume: 8l
  • Voltage: 380-400V
  • Max vacuum: -0,8 Bar

Vacuum evaporator with a remote circulation type heat exchanger is one of the most efficient evaporation systems. Suitable for boiling heat-sensitive products such as milk, cream, etc.

  • No mixing device required, the product has forced circulation!
  • Modular system: possibility to choose the vacuum generator, power and heat exchanger type
  • Inclined design and bottom valve for 100% product discharge without losses and blind spots
  • Insulated upper hatch of the unit for heat retention and safety
  • Tangential product inlet into the vacuum vessel for guaranteed evaporation in a thin layer
  • Material: Stainless steel
  • Volume: 50l/ 100l/ 300l

Equipment for the production of condensed milk from pre-pasteurized milk. This equipment can be manufactured with a capacity of 50 to 500 kg/hour, or on request. We also manufacture condensed milk lines according to TU from dry milk or normalized milk concentration lines.

The unique feature of this vacuum honey evaporator model, distinguishing it from a honey dryer, is its ability to create a deep vacuum with a residual pressure of up to 0.08 Bar during processing! This innovative unit not only allows for quick and efficient drying of honey but also enables the immediate evaporation of water, producing a semi-finished product suitable for the subsequent production of «dry honey» or powdered honey.

  • There is no need to have a large drying surface – an evaporation mirror.
  • There is no need to install a mixing device for thick and viscous products.
  • Low evaporation temperature of moisture – water from honey, at which its quality and medicinal properties are not compromised, and the risk of HMF growth is reduced to almost zero.
  • Fast and efficient dehydration of honey at a low processing temperature.
  • Material: Stainless steel
  • Principle of operation: Batch mode
  • Max vacuum: -1 Bar

Compact vacuum evaporation machine with an external circulation heat exchanger for the production of test batches of products, development of new recipes and technological maps.

  • Compact installation
  • Capable of replicating all processing techniques used in industrial vacuum evaporation units with circulation
  • Preserves the natural taste, aroma and color of the product
  • Can be used to produce small batches of products
  • Material: Stainless steel
  • Principle of operation: Batch mode
  • Type of the equipment: Individual machine
  • Country of origin: Slovakia
  • Volume: 20l

The price is set for the basic version of the vacuum evaporation unit, without additional options and with basic controls (mixer motor switch). The control unit is customized based on individual customer requirements.

A compact vacuum evaporation unit that allows you to concentrate solutions, mixtures, and various products by evaporating the solvent. A modular version based on the basic version of the 110/100 vacuum reactor.

  • Gravity mixing - 25% more efficient
  • Reinforced agitator design with no blind spots
  • Bottom ball valve with no dead zones
  • Condensation and secondary vapor removal system
  • Easy to disassemble mixing device
  • Large heat exchange area
  • Ability to measure and monitor condensate volume (optional)
  • Material: Stainless steel
  • Engine power, kW: 0,25
  • Principle of operation: Continuous mode
  • Country of origin: Slovakia
  • Volume: 100l
  • Voltage: 220-230V
  • Max vacuum: -0,8 Bar
  • Working volume: 50-80l
  • Condensing capacity, l/h: 45-55
  • Steam consumption, kg/h: up to 150

The Atmospheric Evaporating Pan efficiently concentrates liquids by evaporating them on a large surface area, while also being suitable for various cooking methods including braising, cooking, and roasting.

For a price quote, send us an email at sales@foodtechprocess.com

An evaporator concentrator-crystallizer is a multifunctional unit that concentrates liquids by evaporating water and inducing crystallization for the production of concentrated solutions or crystalline products.

For a price quote, send us an email to sales@foodtechprocess.com

A vacuum evaporator is a device used to evaporate liquids at lower temperatures by creating a vacuum environment, which reduces the boiling point of the liquid and enables efficient evaporation without thermal degradation of sensitive materials. Working volume up to, l: 1900 l.

For a price quote, send us an email to sales@foodtechprocess.com

Plant for evaporating, concentrating and crystallizing solutions. Vacuum evaporator ensures a complete separation of the solution into a solid fraction and pure water.

For a price quote, send us an email to sales@foodtechprocess.com

An evaporating unit is utilized to remove moisture from sweet substances through heating, transforming them into concentrated syrups or solutions.

For a price quote, send us an email to sales@foodtechprocess.com

We offer different types of vacuum evaporation machines, this type is an affordable option for efficient evaporation in a stainless steel unit.

For a price quote and more information, send us an email at sales@foodtechprocess.com

A circulation-type vacuum evaporator refers to a combined version of an evaporator that also takes advantage of other types to improve evaporation efficiency particularly by reducing concentration time and when processing heat-sensitive products such as milk.

  • The external circulation circuit with heating intensifies the cyclic evaporation process.
  • The forced circulation system ensures a decrease in the risk of localized product overheating.
  • The condenser enables a deep vacuum and maintains a low evaporation temperature.
  • Utilizing a mixing device with a spray system facilitates product evaporation in a thin layer, mimicking a film-type evaporator.
  • Heating: Steam
  • Material: Stainless steel
  • Country of origin: Slovakia
  • Total power, kW: 2,4
  • Voltage: 380-400V

The vacuum cooking and concentration unit is designed for concentrating products at low temperatures (about 60 degrees) in a reactor with a discharged environment to preserve the color, nutritional value and useful natural substances in present in food products. Evaporation and concentration units are often used when cooking jams, sauces, as well as fruit or vegetable concentrates. The vacuum concentrator allows you to boil and concentrate heat-sensitive products without damaging or destroying their structure or proteins, such as milk.

  • Inclined design - allows for gravity mixing, which is 40% more efficient than usual
  • Quick and 100% emptying of the tank thanks to the inclined design with the mixer on
  • Heating/cooling jacket (duplicator) for the working tank and bottom
  • High hygiene standard - the output valve is located at the lowest hydraulic point of the reactor
  • Material: Stainless steel
  • Principle of operation: Batch mode
  • Country of origin: Slovakia
  • Volume: 300l/ 500l/ 875l

Model VMG S is an effective and reliable vacuum homogenizing unit designed to produce a wide range of liquid, pastry and viscous products with different requirements for the production conditions.

For a price quote, send us an email to sales@foodtechprocess.com

The vacuum evaporation unit is specially designed for thickening dense food products in industrial quantities. The evaporator can be used for the production of thick syrups, caramel masses, dense fruit masses, as well as for the production of pectin, or heat-stable fillings with a high productivity.

  • High performance
  • Rotary spraying system with a powerful electric drive
  • Evaporation in a thin layer with a large heat transfer area
  • Low investment installation costs
  • Tangential entry for product swirling
  • Material: Stainless steel
  • Principle of operation: Batch mode
  • Country of origin: Slovakia
  • Voltage: 380-400V

Multifunctional vacuum unit MINI5 - is ideal for cooking, drying, concentrating, mixing and much more. Suitable for laboratories and small-scale production.

  • Processing heat-sensitive products at lower temperatures
  • Ideal for making creamed honey
  • Possibility of vacuum drying honey
  • Material: Stainless steel
  • Engine power, kW: 0,12
  • Country of origin: Slovakia
  • Volume: 5l

A vacuum deaerator is extensively used in the food industry to remove gases from products that may retain some bubbles post-processing. Additionally, a flow deaerator is utilized to minimize foaming in products, ensuring a denser structure, especially prior to packaging. Vacuum deaerators play a crucial role in eliminating specific odors from the products, such as in the production of juices, purees, and herbal drinks. This process significantly contributes to enhancing the overall quality and taste of the final product.

  • Enhances product quality, structure, and shape
  • Prevents oxidation by removing gases
  • Preserves organoleptic properties and extends the shelf life
  • Suitable for thick and viscous products
  • The flow principle allows for the installation of this equipment in existing production lines
  • Material: Stainless steel
  • Principle of operation: Continuous mode
  • Country of origin: Slovakia
  • Voltage: 380-400V
  • Max vacuum: -0,8 Bar

The concentration and thickening line line has been especially designed for industrial dairy production facilities with a small surplus of milk or smaller milk processing businesses that want to expand their product range. It has an estimated productivity of up to 50-120 kg/hour during continuous operation.

  • Professional industrial technology with compact dimensions
  • A large number of additional equipment and options to choose from
  • Material: Stainless steel
  • Principle of operation: Continuous mode
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