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About Selectra – Mineral Adjustment

Selectra is a broadly proficient machine using electrodialysis for mineral adjustment, specifically adjusting the ionic concentration in wine. This process permits a great deal of control in stabilising potassium bitartrate and calcium volatilities in the wine, reducing salt/SO2 imbalances and adjusting pH levels.

How does mineral adjustment work?

The Selectra machine involves passing the untreated wine through a series of electrically charged membranes that can be adjusted to the desired level of conductivity in the material. Selectra then automatically controls the targeted rate of deionisation.

Benefits of Selectra Mineral Adjustment

  • A one-stop solution to a variety of ionic imbalances in wine product
  • An inline solution requiring no cold storage to operate
  • Selectra can process up to 6,000 litres per hour and has minimal resource requirements
  • Highly mobile – trailer design suitable for a wide range of locations and sites


Selectra - Electrodialysis (Mineral Adjustment)


Mobile unit, capable of 8,000 litres an hour

Selectra Mini (Mineral Adjustment)

Selectra Mini

Mobile unit, suitable for trials and capacity of 20 litres per hour


Our Process

Cold Stabilisation Electrodialysis

Cold Stabilisation Electrodialysis

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Contact Us

Contact VAF Memstar today about our diverse range of filtration and processing services, available in a diverse range of capacities and mobilities.