Molecular SO2 (MSO2) Details


Why calculate molecular SO2?

Molecular SO2 (MSO2) is the form of SO2 that protects your wine from the spoilage organisms that want to do it harm.

It is usually found in minute quantities in wine (< 1.0 ppm), but a little bit goes along way.

Typically, 0.8 ppm MSO2 is considered the magic number for keeping your wine free of spoilage organisms. If you have a microbially stable wine (RS Dry and ML Dry), you might live dangerously and consider 0.5 ppm MSO2 your magic number.