The method to determine the non-water component of a substance, expressed mathematically, involves subtracting the moisture content from the total weight or mass of the sample. This yields a value representing the material remaining after complete water removal. For example, if a 100-gram sample has a moisture content of 20 grams, the resulting non-water component is 80 grams.
The application of this technique is fundamental across various scientific and industrial sectors. It allows for accurate comparisons of nutrient concentrations in food and feed, facilitates precise control of solid content in manufacturing processes, and is crucial for assessing biomass in ecological studies. Its historical relevance stems from the necessity to standardize measurements and account for variable water content, which influences product quality, storage stability, and economic value.