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Clemson EMC Calculator

This resource was developed to estimate the Equilibrium Moisture Content for a given crop and ambient conditions.

Several models to predict EMC have been experimentally developed. In the calculators below, you can select a specific model, or a composite that averages multiple models. Models may perform poorly for extreme values of temperature or relative humidity. These calculators are a work in progress, please report any issues with functionality or results to the authors.

Single Value EMC Calculation

Select Crop:
Select Model
Equilibrium Moisture Content (%w.b.):

**Note these values are determined from ASABE D245.6. Actual moisture will be influenced by variety**

Clemson Natural Air Drying Decision Support

This tool was developed to provide decision support for natural air drying by estimating changes in EMC based on the weather forecast for a given zipcode. It can be utilized to estimate drying potential and identify drying windows. Enter your zipcode, select your crop and desired model and hit go. EMC will be forecast based on the 5day/3hour forecast from: OpenWeather.


Select Crop:
Select Model:

**Note these values are determined from ASABE D245.6. Actual moisture will be influenced by variety and local weather variations**

ASABE Standards. (2007). D245.6 Moisture relationship of plant-based agricultural products. In (pp. 604-638). St. Joseph, MI: ASABE.
Brooker, D. B., Bakker-Arkema, F. W., & Hall, C. W. (1992). Drying and storage of grains and oilseeds. New York, NY: AVI, Van Nostrand Reinhold.
Maier, D. E., McNeill, S. G., & Hellevang, K. J. (2017). Grain Drying Handling and Storage Handbook (MWPS-13). Midwest Plan Service, Ames, IA.

Equilibrium Moisture Content Calculator
(c) 2020 Clemson University Cooperative Extension
Aaron Turner, Assistant Professor, Agricutlural Sciences
Brennan Teddy, Graduate Assistant
Kendall R. Kirk, Precision Ag Engineer

Disclaimer: This Calculator is provided as a free service by Clemson University. The accuracy of the calculator is not guaranteed. User assumes all risks and liabilities from its use.

We are dedicated to making this a valuable tool for you. If you have suggestions for bug fixes,or any other improvements, please contact us by email.