The best way to see good or bad practices and behaviors is to spend several hours on the production floor observing GMPs and production practices. Sanitation practices during the cleaning process are critical to prevent cross-contamination from zone to zone and must be monitored. A good example with sanitation is to see whether your cleaning practices are in sequence; if you use high-pressure water late in the cleaning cycle after equipment has been cleaned and sanitized, that would be another opportunity for cross-contamination. It is time well spent to observe sanitation operational practices during production. At times, you will be surprised by what you see. I have been doing this for 35 years and I am still frequently surprised!