What are the key considerations for calculating the appropriate dosage of SO2 addition during bottling to achieve optimal preservation?

Calculating the appropriate dosage of sulfur dioxide (SO2) addition during bottling is crucial for achieving optimal preservation while minimizing any negative impact on wine quality. The primary goal is to reach an adequate level of free SO2 to protect the wine from oxidation and microbial spoilage during storage and distribution. Several key considerations influence the calculation. The wine's pH is a critical factor. SO2 is more effective at lower pH levels because a greater proportion exists in the molecular form (SO2), which is the most microbicidally active. Wines with higher pH levels require higher SO2 additions to achieve the same level of protec....