II.3.2.2.1 Filtration by continuous deposition

Definition :

Filtration of the wine, after formation of a filter bed, which is then fed constantly by a continuous addition of filter material into the wine to be clarified.

Objective :

To obtain a suitable level of clarity, to a given technological stage, by the elimination of substances in suspension in the wine.

Prescriptions :

a)        The nature of the filter material (such as diatomaceous earth, perlite and cellulose) and the necessary dose are determined by the turbidity of the wine and the clarification sought.

b)       The filter materials used shall comply with the prescriptions of the International Oenological Codex. 

Recommendation of OIV:

Admitted