It would certainly be nice if cotton came to us purified. Unfortunately, that’s simply not a reality. Freshly picked cotton has roughly 650,000 colony-forming units (CFUs) within it; this means natural cotton, straight from the field, is filled with molds, fungi, bacteria, etc. It has to be purified.
We’ll start with the statement that ultimately came from our 2002 position paper on genetically modified cotton: Independent laboratory tests show that after scouring/bleaching there are no GM/transgenic proteins present in processed GM cotton and as such it is indistinguishable from processed non-GM cotton.