There is no such thing as a sulfite-free wine: sulfites are a byproduct of fermentation. You would have to remove them, i.e. maybe be some kind of sulfur ion-exchange chromatography...which I've never hear of for wine. You certainly could have a wine with no sulfites added (potassium metabisulfite is typically added as an antimicrobial), and perhaps this is an advantage with organic wines? The U.S., unlike just about everywhere else, simply forces all wines to print "contains sulfites" on the label. The same bottle, bought in another country, may not have "contains sulfites" on the label, but it's still the same wine, and still contains the same amount of sulfites.
Yes
Isn't it the law to include sulfates in all wines sold in the US?
I think so, but not 100% sure
Thanks! Your answer is awaiting moderation.