Final filtration of kvass before bottling

Final filtration of kvass before bottling

Final filtration allows you to retain particles and bacteria in order to increase shelf life of kvass.

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Purposes of filtration
Recommendations for filter cartridges

Purposes of filtration

The generally used filtration scheme for the production of pasteurized kvass is as follows:


This scheme does not guarantee the sterility of the product. 

Even when using sterile cardboard, sterility is only guaranteed at the outlet of the filter. When the product passes through the tank and pipelines to the bottling line, secondary insemination occurs.
NPP Technofilter recommends using an additional stage of filtration - control filtration before bottling. Control filtration allows retaining impurities and bacteria, thereby significantly increasing the shelf life of "live" kvass.

Proposed scheme:


or a scheme with replacing the filter presses with a cartridge trap filter:


Recommendations for filter cartridges

Filter cartridges for kvass filtration before bottling

Cartridge filter EPV.S is designed for high-quality filtration with the possibility of multiple washing and regeneration.

EPV.S is a death corrugated filter cartridge based on microfiberglass material with a large surface area and low resistance to flow. The filtration efficiency (practically at the membrane filtration stage) is achieved by the high adsorption capacity of the glass fiber as well as increased filter capacity.



High efficiency of bacteria and particle removal (98-99,5%)

  • Micron ratings 0.2 and 0.5 microns are available

Large surface area (pleated)

  • Higher flow rates with the smaller differential pressure

Stable matrix, reinforced construction

  • Reliable preservation of the integrity of the filter in harsh operating conditions
  • The structure of the filter cartridge excludes "dusting"
  • Withstands in-line steam sterilization, multiple backwash and all types of chemical sanitation
  • Longer service life.

Operational characteristics

  • The maximum pressure drop - 0.5 MPa at 20 °C, 0.25 MPa at 90 °C 
  • Rinsing with hot water (at least 100 cycles) – 90 °C, 30 min 
  • Steam sterilization (at least 20 cycles) - up to 135 °C, 30 min