<<Disclaimer: Verify this information before applying it to your situation.>> Karen, About a year ago I when Bob's Red Mill was mentioned as having some cross contamination problems I decided to use my old Magic Mill that I ground wheat in for years, cleaning it thoroughly first and running rice through and throwing it out until I felt comfortable using the flour. This mill can grind course or fine, but it wasn't fine enough. The bread kept falling and I felt the reason was because of the heavy rice flour. I went back to Ener-G's rice flour. Vicki Pacific NorthWET