Mark may weigh in here. From a company's perspective, the reputation and continued operation and liabilities for problems are so enormous that there is a lot of focus put on ensuring that there isn't contamination. This is in everybody's interest along the supply chain.
Even with all of the due diligence and care that's taken, we have had examples where dust from the crop that was handled previously by equipment.... With measurement sophistication being able to detect things down to parts per billion, and if in the absence of a regulation that defines an acceptable level the tolerance level is zero, we can almost go through and find that you will find some residue, which again is not a health or a safety concern; it's a regulatory gap.
Mark, I don't know if you have comments.