Jeff Branco
San Francisco, CA

Winery Equipment Testimonial

Ryan and I worked together at Justin Winery for five years and have known each other for ten. While at Justin, Ryan was passionately interested in the wine making process, could fix about anything and was totally dedicated to making the winery a success. He has taken that dedication to Vintner Vault and became a major player in the winery supply business in just a few years. Jeff Branco, former VP and Winemaker Justin Winery

Home > Beer Filtration > Reverse Osomsis Plants

Reverse Osmosis Filtration Plants

Reverse Osmosis (RO) is a special type of filtration which has many applications in the production of quality wines. Unlike traditional wine filtration, the filtrate which passes through the filter membrane does not contain the flavor and color components of the wine. It contains virtually no anthocyanins, phenolics, tartaric, malic, or citric acids. Thus the characteristics that make up a fine wine, never actually go through the filter. 

With an RO filtration plant, unlike a traditional filter, you generally keep what does not go through the filter. Depending on what the winemaker is trying to accomplish, the filtered material is either discarded, or may be further treated and blended back into the wine.

Because the filter membrane is so tight (10,000 times tighter than a sterile filter), large flows of wine are recirculated across the filter surface (Cross Flow) to scrub the membrane and keep it from fouling. Only the smallest molecules present in wine can pass through the filter membrane. Manly water and ethanol which make up 75%, acetic acid 60%, ethyl acetate 40%, and latic acid 15%.

The most common uses for a RO Filtration Plant include:

  • Volatile Acidity Reduction
  • Alcohol Adjustment
  • Flavor Concentration
  • Juice Concentration (Water Removal)
  • Restarting Stuck Fermentations
  • Sulfide Removal
  • Cold Stability without Refrigeration
  •  Purify Water





These Reverse Osmosis Filtration Plants can be built in several different sizes.


If you have any questions please call us at 805-226-8100

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