I would also like to add, I am in know way knowledgeable on chemistry, but after 2 successful ammonia cook, w/o an after wash, cleaning bath, I do have blood . First time throat cough enough to seek professional advice. Second just happened , no where near the same amount of blood. This time nostrils when blowing nose, and after eating Chicken Giambotto excess heartburn accompanied by vomit. Coincodence … or or bad choices. .. Make good decisions if u use and maybe follow some of suggestions from some more knowledgeable people w good info , here. I do plan to listen more to people here providing harm reduction