How to Measure Humidity In A Root Cellar?

Choosing the Right Measuring Tool

When selecting a hygrometer or psychrometer for your root cellar, consider the accuracy and durability of the device. A digital hygrometer is a good option, as it provides a quick and easy reading of the relative humidity level. Look for a device with an accuracy of ±3-5% and a temperature range that matches the expected conditions in your root cellar. Some popular models include the AcuRite Digital Hygrometer and the Davis Instruments Vantage Vue Weather Station.

Placement and Calibration

To ensure an accurate reading, place the hygrometer in a location that is representative of the average conditions within the root cellar. Avoid placing the device near heating or cooling vents, as this can cause temperature fluctuations that affect the reading. Once installed, calibrate the device according to the manufacturer’s instructions. This typically involves setting the device to a known reference point, such as a humidistat that is calibrated to a specific temperature and humidity level.

Maintaining Optimal Humidity Levels

In a root cellar, the ideal relative humidity level is between 80-90%. This range helps to maintain optimal storage conditions for produce, preventing moisture loss and spoilage. To maintain these levels, ensure that your root cellar has adequate ventilation. Aim for a ventilation rate of 1-2 air changes per hour, which can be achieved through the use of passive vents or fans. By monitoring humidity levels with a digital hygrometer or psychrometer and making adjustments to ventilation as needed, you can maintain a stable and optimal storage environment for your produce.