I purchase grocery store chicken and boil it for chicken and dumplings, as well as to feed my dog. It has a strong chemical odor that doesn't go away in spite of seasonings, etc. How do I get rid of that odor? I tried soaking it in vinegar, but that didn't help.
I would identify the source of the smell before consuming it. That said, I would certainly not consume any product (or wear it for that matter) that had a strong chemical smell, even if I were able to identify it.
If it's a recurring issue, perhaps it's the allegedly benign carbon monoxide used at some of the bigger stores to preserve meat for lengthier shelf life. CO itself does not have an odor, but perhaps the meat develops a scent after being on the shelf that long. I prefer to go to a smaller food chain in my area that does not prepackage the meat. I would find another meat source. There is no reason to have to perform detective work prior to eating food you just paid for. I don't think anything you eat should have an uncertain and questionable smell or taste.
How long have you tried keeping the chicken in vinegar?
I would recommend keeping it in a mixture of curd and vinegar overnight because both of them help break down proteins in the food. I've tried this with tandoori chicken where I too had an offensive smell from the chicken every time I kept it marinated for a couple of hours 2-5). However, the last 2 times I marinated it overnight (almost 12 hours) and the smell is gone after that.
Try adding root ginger to the water.