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Environmental friendly electro-dialysis?

There have been more reactions to the EU rules for organic wines. The French company Oenodia is upset about the fact that the rules ban organic wines from using electro-dialysis.

Oenodia specializes in the treatment of wine with membranes, including electro dialysis. The company says that electro dialysis is a natural technique that does not change the character of the wine or the taste and it does not require any additives. It is 20 times less energy demanding than cold stabilization, making it an environmentally friendly process, they say.

According to Oenidia electro dialysis is widespread in wine regions across the world, especially in the US where it is permitted for organic wines.

Vitisphere write more about this here: vitisphere.com

Electro-dialysis is used for tartrate stabilization (as an alternative to cold stabilisation). The method involves reducing levels of potassium in wine using an ion exchange membrane. Electro-dialysis may be an energy-efficient process, but the technique of ion exchange is seen as highly questionable in the organic sphere within the EU.

Why?

Cold stabilisation in a stainless steel tank

Cold stabilisation in a stainless steel tank, copyright BKWine Photography

This post is also available in: Swedish

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