International Code of Oenological Practices

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Treatment with citric acid

II.3.3.8 Treatment with citric acid


  • Citric acid, monohydrate : additive


Definition :


Addition of citric acid to wine.

Objective :


To bind ferric ions in a soluble complex anion and thus to lessen the tendency to form iron hazes.


Prescriptions :


a)        The maximum citric acid content of the wine at the point of consumption shall be 1 g/l.

b)       The citric acid used shall comply with the prescriptions of the International Oenological Codex.

Recommendation of the OIV: