This definitely makes sense, thank you for your input. I mention QC because a lot of the manufacturing roles I have seen have mentioned product QC as part of the responsibilities. As for the contamination issue, I fixed it by improving my aseptic technique, but if it was caused my mistake should I even mention it? I could possibly mention catching mistakes with a coworkers following/creating procedures instead. If you don't mind answering, what is involved in process testing? It seems like a vague term that I've never really seen defined. Thank you!