I'm not upset, more fascinated. I mean, duck-feathers?? It's amazing!
That being said, I've known people to have adverse reactions to sulfites in food and drink. It's not super-common and no doubt sodium bisulfite is a little different from sodium metabisulfite and sodium sulfite in this respect, but it's certainly no water :downcast: the association with toilet-cleaning is a peripheral issue. I was surprised to learn, some years ago, that some people do worry about gelatin; specifically some of my Muslim and Jewish acquaintances who take the whole pig thing seriously.

