California has an ipso facto restriction on bromate. By requiring restaurants/food manufacturers to put a very scary sounding label on bromated goods- goods that no one would buy if they read the label, they've curtailed bromate use to such an extent that it's pretty much impossible to buy. In every other state, you can't walk into a flour distributor and buy unbromated pizza flour, while in California, it's the opposite- finding bromated flour is close to impossible. So, no, it's technically not illegal in California, but, with this fear mongering labeling regulation, it might as well be.
And yes, I do have a different opinion on it Lethality
As of today, there's never been a single study showing a link between bromate and cancer in humans. Not a one. The baking industry has been working with bromate for decades and there's never been any evidence of high exposure to bromate ever causing elevated rates of cancer.Dose
They can feed an obscene amount of bromate to rats and they will get cancer, so, for the sake of argument, let's say it is carcinogenic. Bromate is added to flour in quantities of less than 20 parts per million (ppm) and ends up in baked goods in quantities of less than 20 parts per billion (ppb). Let me reiterate- parts per *putting my pinky to my lip* billion
Both the FDA and California allow 10 ppb in drinking water, and, because of disinfection processes, drinking water usually contains that limit. Bottled water, because of lack of regulation, can contain more. Simply put, the water you drink (bottled or not) contains about the same amount of bromate as pizza baked with bromated flour.
And that's water. Many other foods contain carcinogens, but the pizza-like quantities they contain make them absolutely harmless. Black pepper, cinnamon, nutmeg- all contain carcinogenic compounds. And yet we use them without a second thought.
Going outside on a sunny day without sunscreen will increase your chances for cancer far more than eating a slice of bromated flour pizza. Eating grilled meat- many many times more dangerous. Bacon and pepperoni- forget about it.
Sure, I have no doubt that if you sat down and started eating pure potassium bromate, there would be dire ramifications. But then, if you sat down and started eating salt, you'd be equally as doomed. Within the context of bread and pizzamaking, though, with the parts per billion
that end up in the final product, it's absolutely harmless.