[NYer]

No matter what color the wine is, the Eucharist will always remain as a mystery of faith which goes beyond the senses.

[Dominick]

Because of this, wine specially prepared for Mass should generally be used. Commercial wines often contain additives or mixtures of other substances which give them their particular qualities but which may render them doubtful matter.

However if other elements enter the wine naturally, without changing its nature, it would not appear that this affects the wine's suitability as valid matter.

Sulfites are naturally present in all wine, including sacramental wine. It is only labeled because some people have been paranoid about sulfites from allergic reactions. The reality is, most fruits contain natural sulfites.

I had this problem for an organization I was a member of, we had to provide wine for a special Mass. We went nuts looking for a wine. I went to a wine pantry place hoping for guidance, because they all said, "Contains sulfites".

Many commercial wines, like a Beaujolais, where it is a single grape rarely contain additives.

[AskStPhilomena]

Here's some sage wisdom on the liturgy....
http://www.sspx.ca/Angelus/2004_April/Holy_Sacrifice_Mass.htm