Reverse Osmosis Trials (2014)

Overview:

Reverse Osmosis was performed on Merlot, Malbec, and Petit Verdot wine in the 2014-2015 season in order to assess its effect on the chemical and sensory aspects of these wines.

Results:

Chemical parameters were not much affected by reverse osmosis, although color intensity was increased in RO wines.  Hue was also slightly increased, suggesting some oxidation from RO.  The Merlot and Malbec wines were found to be significantly different between treatments through triangle testing (p<0.05), but Petit Verdot showed no discernable difference.