Treatment with diethyl dicarbonate
II.3.4.8 Treatment with diethyl decarbonate
Definition :
Addition of diethyl dicarbonate to wine.
Objective :
To stabilise wine from a biological point of view by chemical treatment.
Recommendation of OIV :
Not admitted
Treatment with ascorbic acid
II.3.4.7 Treatment with ascorbic acid
Classification:
- Ascorbic acid: additive
- Erythorbic acid: additive
Definition:
Addition of ascorbic acid[1] to wine.
Objective:
Treatment with oils
II.3.4.6 Treatment with oils
Definition :
Use of mineral oils.
Objective :
To eliminate accidental taints in wine by intimate mixing of the oil and the wine.
Recommendation of the OIV:
Not admitted
Treatment with sorbic acid
II.3.4.5 Treatment with sorbic acid
Classification:
- Sorbic acid: Additive
Definition :
Addition to wine of sorbic acid or potassium sorbate.
Objectives :
Sulphiting
II.3.4.4 Sulphiting
Classification:
- Sorbic acid: additive
- Potassium sorbate: additive
Definition:
The addition of gaseous sulphur dioxide, sulphuric solutions or potassium metabisulphite solutions to wine.
Bulk pasteurisation
II.3.4.3.1 Bulk pasteurisation
Classification :
- Liquide sulphur dioxide: additive
Definition :
Heating wine to a specified temperature for a given time.
Objectives :
Pasteurisation
II.3.4.3 Pasteurisation
Definition :
Heating wine to a specified temperature for a given time.
Objectives :
a) To inhibit the activity of microorganisms present in the must at the time of treatment.
Biological stabilisation
II.3.4.2 Biological stabilisation
Definition:
Processing designed to eliminate undesirable microorganisms or to inhibit their development.
Objective:
To obtain biological stability of the wine.
Prescriptions:
To achieve the objective, the following procedures may be used:
Topping up
II.3.4.1 Topping up
Definition :
Operation consisting of the addition of wine to a wine container in order always to keep it full and to compensate for normal storage losses.
Objective :
To avoid all contact of the wine with air which could lead to oxidation or aerobic microbial growth.
Prescription :