If the calibration of your RAPT pill IOT device is off, it is possible that all of your fermentation readings will be consistently lower or higher than the actual values by the same percentage. In this case, if the chart shows that the fermentation process has completed and the overall reading is lower than the actual value, it may still indicate that the fermentation process has completed.

However, it’s important to note that relying solely on a single measurement device, especially if it is not properly calibrated, may not provide a complete picture of the fermentation process. It’s always a good idea to use multiple measurement methods and to monitor the progress of fermentation over time to ensure that the beer is fermenting as expected and that the fermentation process has indeed completed.

In addition to monitoring the gravity and ABV readings, you may also want to monitor other parameters such as pH, temperature, and the presence of off-flavors or other undesirable compounds in the beer to ensure that it is fermenting properly and producing a high-quality final product.