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Wine filtration

Filtration of wine is a multi-stage production process, in which mechanical suspensions, turbidity, yeast precipitate, pasting agents, tartar, microorganisms and other substances affecting the durability and organoleptic properties of the finished product are separated from the wine material. 

Depending on the technological scheme, type of wine, the method of microbiological stabilization, productivity (capacity of the enterprise), different types of filtration are used at certain stages of wine production. 

Technofilter manufactures equipment and cartridges that are used in all the main stages of preparation of wine material, as well as for filtration of technological media (water, air, gases, steam).

Membrane filtration is widely used at secondary winemaking enterprises.

The main applications of cartridge filtration in wine making

  • Filtering filtration (separation of microorganisms from pre-filtered wine) under cold filling conditions. 
  • Removal of residual opalescence under "hot" filling conditions. 
  • Fine (sterilizing) filtration of flush water and detergent solutions. 
  • Sterilizing filtration of air, carbon dioxide, tank "breathing" filters. 

Prerequisites for perfect finish membrane filtration 

  • Careful preliminary preparation of wine material. 
  • Pre-filtration of wine through a filter press with high-quality cardboard. 
  • Availability of sterile service environments. 
  • Prepared storage tanks equipped with filters for sterile breathing. 
  • Thorough sterilization of equipment and all materials in contact with wine. 
  • High level of sanitary-hygienic state of production facilities. 

Membrane filtration is the most common method for achieving microbiological stabilization of beverages without using chemicals or heating. As an alternative to pasteurization, cold stabilization preserves the aroma, flavor and fine structure of the wine.

Membrane filters such as EPM provide absolute retention of microorganisms that cause damage to the wine. Filters of fine purification of the EPV type, which have a high mud capacity and resource, provide excellent protection of the membrane element and increase its working life. 

Cartridge membrane filter for sterile filtration of the new generation of EPM.PS

We present the new generation cartridge filter based on polyethersulfone membrane EPM.PS., specially created for the biological filtration of wine and beer with the possibility of multiple washing, regeneration and sterilization.

The filter is based on a reliable pleated polyethersulfone membrane with excellent performance characteristics.

Wide chemical compatibility (pH 1-14)

Excellent thermal resistance (up to 100°C in water).

Low ability to bind proteins.

Longer service life due to an increased surface area up to 0.76 m / 250 mm.
High efficiency of retention bacteria and microorganisms (99.98%). Available with pore sizes of 0.65, 0.45 and 0.2 microns. Guaranteed removal of yeast cells, molds and pathogenic bacteria before bottling.
Pronounced asymmetric pore structure and an increased total porosity of the membrane. High filtering speed and small differential pressure reduce financial costs.
Reinforced construction, longer service life.

Reliable preservation of filter’s integrity under harsh operation conditions.

The possibility of multiple sterilization ensures economical operation.
100% control for quality assurance, integrity testing.

Microbiological reliability means that the breakthrough of delayed particles and microorganisms is excluded.

Guarantee the integrity and effective operation of the product. Can be checked by a special integrity test during operation.
Non-toxic, pyrogen-free. Passed extensive tests and certified for use in the food industry, manufactured in accordance with a certified quality management system ISO 9001:2008.


Operating characteristics

  • Maximum operating temperature is 90 ° C at 0.20 MPa
  • Maximum pressure drop is 0.5 MPa at 20 ° C, 0.20 MPa at 80 ° C
  • Direct flow wash out with hot water (at least 50 cycles) - 90 ° C, 30 min
  • Steam sterilization (not less than 20 cycles) - 121 ° С, 30 min

Effective prefiltration

Most filling lines use a two-stage wine filtration scheme.

The combination "prefilter - final filter" increases the reliability of the process, ensures maximum efficiency and cost effectiveness of the filtration system.

For high-quality prefiltration, our company recommends pleated multiply regenerated depth filter cartridges of EPV.S, EPV.Sc and EPVg.P.

Recommended options for pre-filtration before membrane filter elements

Final  membrane filter



Base protection

EPVg.P-100 or EPV.STS-300/100


Intensive protection

EPV.C-050 or EPVg.P-065

EPV.S-300/080 or EPVg.P-100

Brief specification of depth filter elements used in the preliminary and final stages of wine filtration


Filter material

Retention efficiency, μm

Filtering material type o packing, properties

Brief description


Microfiber glass




Stable rigid matrix, chemically stable in acidic, alkaline and alcoholic media, absolute retention capacity, multiple regeneration, increased contamination capability and lifetime. Operating temperature up to 90 ° С. Can be used as a finishing filter for hot filling. 


Fiberglass/ cellulose/ polypropylene

0.8, 1.0



Stable rigid matrix, high retention capacity, increased contamination capability and lifetime.


100% polypropylene chemically resistant

0.5, 0.65, 0.8, 1.0, 1.5, 2.0, 5.0, 10.0, 20.0



Stable rigid matrix, absolute retention capacity, multiple regeneration, increased contamination capability and lifetime. Operating temperature up to 90 ° С. Can be used as an effective pre-filter and as a finishing filter for hot filling and pasteurization. 


Filter holders for liquid media

Technofilter provides a series of filter holders made of stainless steel 12H18N10T of the DS-5 and DS-8

Distinctive features

  • High quality polishing of external and internal surfaces.
  • Availability of internal aries for inspection and washing.
  • The absence of hidden and hard-to-reach aries 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 systems

On the customer’s request, filtration systems with manual and automatic control of type UPF.R and UPF.A are designed on the basis of multipass filter holders. They are designed for various flow rates (from 0.5 to 12,0 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 systems 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.

Automatic device TECHNOCHECK ™ mini for rapid integrity tests of membrane filter elements and systems used in the production of beverages.

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