I tried the butcher market and still got a corn reaction.
In the article listed above it does mention: Some individuals react to animals that have been fed a corn-based diet prior to slaughter but not everyone does. To receive USDA certification, meat processors spray the carcass with corn-based antibacterial solutions that contain citric acid or lactic acid. Both of these processing aids are derived from corn.
Also it says they use dyes.
Anyway, I can't eat regular store-bought beef (all regular beef is raised on a diet of corn).
I did buy a package of grass fed beef today at Safeway. No soaker pad in it either. So I will try that. I can tide myself over with that until we can buy a grass fed cow and have it slaughtered. But it's a little pricey. $10 a pound. Yikes!