Study the principles of food processing

I need a concise reference sheet that explains the key principles of food processing for the R&D team meeting on Thursday. Summarize thermal death time, water activity control, pH effects, enzymatic browning, pasteurization versus sterilization, and common preservation hurdles in one page so a lab technologist can glance and act. Highlight one sentence on what to watch for when scaling from bench to pilot.

Before I circulate this to the product team, make it quick to act on: pull the preservation methods to the top, show which principles change first when scaling up, flag three phrases that will alarm the regulatory reviewer, and mark any assumptions about ingredient variability that would make a process fail at pilot.

I ran twenty thermal batches this morning and batch 7 showed unexpected darkening even though temperature and time matched the rest. The lab tech who did the pigment assay is on leave; procurement says ingredient lots were identical; production insists the kettle was clean. I fear a hidden pH shift or enzyme carry-over. What is the most likely cause and the next three steps I should take before telling the product manager?

Across five projects we repeatedly lose two weeks after pilot because we underestimate ingredient variability and fail to sample lot-to-lot early. Recommend one habit change for our R&D-to-pilot handoff, one practical sampling rule to enforce at bench, and one checklist item to add to the pilot run to catch the common failures.