The Swedish investigative reporting program, Kalla Fakta aired a piece on the additives and pesticides in their country's top selling boxed wine.
Some highlights you won't want to miss.
1/3 of the additives (out of the 60 allowed) are known allergens.
Alcohol causes hangovers, yes, but most hangovers from wine are additive related. (Big discussion on this in Naked Wine, which you will want to read.)
Water containing the same amount of pesticide residue that some commercial wines have, would be undrinkable.
I've a particular interest in tannins. Powdered tannins are not only added in boxed cheapies, but in a wide range of wines including high-end Burgundy and Côte-Rôtie. According to their research (one of the links below) it can spark migraines. Potassium Sorbate can cause skin sensitivities, I wonder if this is why an acquaintence of mine skins smells foul after drinking red party wines. It's mostly used to curb refermentation in sweet wines but as so many commercial wines have so much RS these days, food for thought? Tartaric acid? Seems to have a laxative response. (Calling Dr.J. We have talked about this, no?)
I wish they had counterpointed their findings with natural wine, perhaps there will be a part two. However, it's a decent entry level piece--if a bit hysterical-- on the topic. Some of the subjects innocently step in the proverbial, in fact I was reminded at times of Nossiter's Mondo Vino.
Please forgive the classless prose in this post. I am on book deadline. But, the point is not me but their story. Take the ten minutes or so it takes to watch their work. The interview with the Lurton-owned Fumées Blanches is particularly damnin and go to their website for the lab results. And if you think you're safe because you reach for the bottle and not the box, you're not. Too many of the world's so-called high-end products are guilty of over doing.