It’s actually from the potassium metabisulfite used to stop the fermenting process after secondary fermentation.It's from a sulfite reaction, which is fairly common. A few drops of hydrogen peroxide in your glass will create a reaction of desulfurization. Or you could try some sulfite free wine.
I have made made competitively since I was 12 years old and have visited commercial wineries as well as boutique wineries all over the world..even the ones who claim 100% organic and everything still use it…
I have noticed however, that depending on my fining agent I can actually drink a little wine with my autoimmune disease. If I use clay or egg white? Fuck no!!
now, if I use super kleer KC I can have a few glasses with no inflammation
still taste best fines with bentonite clay though