Filterability indices are currently the only parameter capable of providing valid grounds for evaluating the possibility of a liquid being microfiltered, To all intents and purposes it represents the determination of the clogging power of a wine. A wine with a suitable index can be microfiltered without risk of cartridge obstruction. This test forms an integral part of a certified quality system and is used to determine the technical quality of the clarifications and filtrations.
To carry out the test VasonGroup has made three semi-automatic systems available: Q.F.T, Q.F.T. Touch and Mastermind Q.F.T.