Unfortunately you just have to avoid it. Wheat, flour and bread isn't processed well in the US. For grains and beans, soak them for 10 minutes in baking soda or

Unfortunately you just have to avoid it. Wheat, flour and bread isn't processed well in the US. For grains and beans, soak them for 10 minutes in baking soda or 5 minutes in activated charcoal. It doesn't get rid of everything, but it's a solution.