Given that the visibility of signals from fluorescence sensors embedded within food packaging needs to be maintained throughout the course of a given food product's lifespan, we then sought to evaluate changes in fluorescence over time. An optimal fluorescence channel would exhibit minimal changes over time, as such increases or decreases in background would make the calibration of signal-to-noise sensing thresholds unfeasible. Fluorescence consistency was quantified by the range of intensity values observed over the course of a 10-day test period.