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Cognac, brandy, cognac drinks

TECHNOFILTER  produces filter cartridges and equipoment for polishing filtration and stabilization of  brandy beverages.

Main technological tasks:

  • Polishing filtration before bottling
  • Stabilization of beverages (removal of excess amounts of metals Ca, K, Fe, Cu, etc.) by means of cation exchange filter cartridges
  • Improving the taste of the beverage

Polishing filtration of cognac and brandy spirits

For polishing filtration of cognac beverages, it is proposed to use a two-stage filtration scheme before bottling on the basis of filter cartridges.

The combination of "pre-filter - finish filter" increases the reliability of the process, ensures maximum performance, high resource and economy of the entire system.

Technofilter offers several combinations of microfilters from high-tech materials for cognacs of various classes.

The filter materials used help to preserve all organoleptic properties of the beverage

Filtration schemes for cognacs and cognac beverages





Ideal for economical filtration of cognac beverages

Elite cognac drinks



EPV.S (SC)-300/100

Finish filter


EPM.PS-045 (0.65)

* The choice of the system depends on class of the drink

OPTION 1 (OPTIMUM) based on EPVg.P (high-performance depth pleated filter cartridges made of polypropylene)  and EPV.S (made of microglass), both are characterized by low cost, increased operating time without regeneration, high degree of microparticles (≥ 0.9 microns) retention. Filter cartridges are characterized by excellent wettability, inertness to alcohol-containing liquids, operation at low differential pressure, they provide good transparency and shine.

OPTION 2 (ELITE) on the basis of highly efficient fiberglass depth pleated pre-filter EPV.SC and finish EPM.PS high-performance polyethersulfone membrane filter cartridge with 0.45 (0.65) μm pore size with 99.9% retention efficiency. The surface mechanism of particle confinement, inherent in membrane filter cartridges, completely excludes the breakthrough of delayed particles in the filtrate (medium migration). Highly selective membrane filter cartridges give cognac drinks a special shine and nobility of color, contribute to the disclosure of the exquisite bouquet and the appearance of additional tones, significantly increase the spill resistance.

Brief specification of Technofilter filter cartridges used in the preliminary and final stages of filtration of cognac beverages


Filter material

Pore size, μm




100% chemically resistant polypropylene (pH 1-14)





Stable rigid matrix, high retention efficiency, repeatedly regenerated, operating temperature up to 90 ° С. Used for preliminary and final filtration.


Micro fiber glass

0.5, 0.8, 1.0, 3.0




Stable rigid matrix, high porosity, absolute retention capacity, increased dirt holding capacity and lifetime without regeneration at maximum throughput and low pressure drop provides economical filtration, operating temperature up to  80°С. Used at the final stages of filtration.


Combination of fiberglass/ cellulose/ polypropylene

0.8, 1.0




Stable rigid matrix, high porosity, advanced adsorption capacity towards microparticles, hydrophilicity allows free-run filtration, maximum throughput and small differential pressure reduce financial costs. Operating temperature up to 80 ° С. Can be used for preliminary filtration of cognacs.



0.20, 0.45, 0.65




Wide chemical compatibility (pH 3-14), long operation life due to high porosity, asymmetric membrane pore structure and increased surface area to 0.76 m2/250 mm, withstands multiple regenerations, provides high stable quality of the product. Used only as a finishing filter in combination with an effective pre-filter.



0.45, 0.65, 0.80, 1.0, 1.2, 3.0




Wide chemical compatibility (pH 3-14), naturally hydrophilic long service life due to increased surface area to 0.76 m2/250 mm, provides excellent stable product quality. Used only as a finishing filter in combination with an effective pre-filter.

Stabilization of cognac drinks

To stabilize cognac drinks by removing excessive amounts of metals (Ca, K, Fe, Cu, etc.), which lead to the formation of opacities and reduce the level of spillage, EPSF.T sorption filter cartridges have been developed on the basis of cation-exchange resins.

Filter cartridge is based on a special cation-exchange resin. The material is characterized by high capacity, increased radiation, thermal and chemical resistance. Sorbent is insoluble in water and solutions of hydrochloric and nitric acids, it can be used in aqueous-organic media, including alcohols and ethers, and also in the presence of strong oxidants and reducing agents.

The EFSF.T filter cartridge is a "mini-column" with backfilling of the cation-exchange resin between the inner and outer polypropylene cases and the longitudinal movement of the liquid. Cartridges are sealed at the ends by polypropylene melt, produced 250, 500, 750, 1000 mm height, adapted to any type of filter holder. The recommended filtration rate is 20-40 l/h per cartridge 250 mm height, the service life depends on the initial metal concentration and pH of the medium.

All Technofilter filter cartridges are manufactured in accordance with the certified Quality Management System according to GOST ISO 9001: 2008.

Filtration plants of USF type with a set of EPSF.T cation-exchange columns (filter cartridges) are recommended for the stabilization of cognacs and cognac drinks.

USF.1 filtration plant with a set of EPSF.T filter cartridges


Filter holders for liquid media

Technofilter presents a series of filter holders made of stainless steel 12x18Н10Т.

Distinctive features

  • High quality polishing of external and internal surfaces.
  • Availability of internal arias for inspection and washing.
  • The absence of hidden and hard-to-reach arias due to an additional lightweight separator.
  • Absence of stagnant zones.
  • Full depletion of liquid through drain valves.
  • Increased accuracy and cleanliness of the mounting holes for the adapters and surfaces under the sealing elements ensures a high tightness of interfaces between media interfaces (source medium / filtrate / external medium).
  • Simplified installation at point of use due to the hinged connection of the nozzles to the base. It is equipped with pressure gauges for monitoring hydraulic resistance.

Filtration plants

On the customer’s request, filtration plants with manual and automatic control of UPF.R and UPF.A types are designed on the basis of multicartridge filter holders. They are designed for various flow rates (from 0.5 to 16,0 m3/h and more). Technofilter designs, produces and completes customer-oriented systems including all necessary measurement equipment and automatic control units according to customer’s request.

Filtration plants are compact, mobile, easy to operate. It is possible to install them permanently in place, i.e. locally as well as on a frame or a trolley. Systems consist of several filtration units and are fully equipped (pump unit, measuring and shut-off valves, pipelines, etc.) and ready for operation.

Absolute-quality filtration plants with automatic control

Absolute-quality filtration plants UPF.A with automatic control are especially popular among wineries. The standard system is based on two-stage filtering scheme. The units for filtering wine and liqueurs are additionally equipped with a filter unit for preparation of service media. The systems differ by a complete set (a set of options) and the degree of automation - it all depends on the filtered beverage and the individual requirements of the Customer.


  • Consistent high quality of the drink.
  • Soft start, maintaining the set pressure at the input and output of the system.
  • Absence of hydraulic shocks.
  • The optimal set of options, compactness.
  • Full service life of filter cartridges.
  • Touchpad - control of all filtering parameters in real time.
  • Wash out of filter cartridges with highly purified water or regeneration with detergent solutions directly in the plant without using an additional pump.
  • Removal of the remainder of the drink with compressed air.
  • Reliable accessories.

Absolute Quality Systems make filtration process totally visible, secure and efficient for the whole business. The customer is enabled to fully control the filtration process and to be sure of the end product quality.

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