Fermentation Temperature Is a Process Signal
Use a PDSA loop to investigate fermentation temperature drift without overreacting or ignoring it.
The reframe: Temperature drift is not just a number outside a band. It is information about the process. Plan the prediction Write what you expect to see if your theory is true. A prediction turns a hunch into a test and protects the team from changing three variables at once. Do the smallest safe test A safe test might be a calibrated sample temperature, a valve status check, a glycol header reading, or a temporary stagger of another load. The point is to learn without destabilizing the batch. Study before you standardize Do not call the fix done just because…
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