II.3.4.20 Use of selective vegetal fibres

Definition:

Use of a selective adsorbent composed of vegetal fibres, during wine filtration.

Objectives:

a)        To reduce the ochratoxin A levels in wines;

b)       to reduce the number and levels of phytosanitary products detected in wines.

 

Prescriptions:

a)        Selective vegetal fibres are incorporated as processing aids, either during filtration with continuous deposition, or as a constituent of a filter sheet;

b)       the recommended dosage is determined according to the filtration technique used, without exceeding 1.5 kg/m² of the filter sheet surface area;

c)        selective vegetal fibres are used on wines in compliance with regulatory requirements, particularly the permitted residue limits for phytosanitary products;

d)       selective vegetal fibres must comply with the prescriptions of the International Oenological Codex.

Recommendation of OIV:

Admitted