What happened: Batch 4468 finished 2.1% under target yield on Line 1 Tuesday—third consecutive run below spec for Marinara v3.1.
Why: Cook time variance averaged +4 minutes vs formulation; historical data shows yield drops when kettle steam pressure falls below 18 PSI during reduce phase.
Recommended action: Add steam pressure check to in-process CCP for Marinara v3.1; schedule kettle maintenance before Thursday co-pack run.
Expected impact: Restore yield to 98%+ target; protect co-pack client release window.