Jan 17, As with blue cheese, even if this was the case, it would be very unlikely the brie would contain 20 ppm or more gluten. Indeed, a study. Oct 26, Historically, blue cheese did contain gluten. This is because the mold used in the cheese was derived from pieces of rye bread that had been. Jul 21, But blue cheese is a potential corner-case that needs some investigation. And that they did, by leaving loaves of bread out in the caves, getting who suspect that blue cheese may contain traces of gluten from the bread.