Dry Basis Moisture Content

Dry basis moisture content (designated M_d in the text) is described by the percentage equivalent of the ratio of the weight of water (W_W) to the weight of the dry matter (W_d).

Note that dry weight moisture content can range from 0 to very large percentages.

Dry basis moisture is most commonly used for describing moisture changes during drying. When a sample loses or gains moisture, the change in the dry basis moisture is linearly related to the weight loss or gain.