Moisture content in products/substances can reduce the quality of the substance. Moisture occurs nearly in all substances and greatly affects the properties of the host material, forming critical aspects of cost and product quality. It also reduces the life time of the product The accurate measurement of moisture requires the skill and time because of its inherent characteristic of water molecules to coexist with the moist materials through absorption and adsorption. Moisture content of most solids and liquids needs to be monitored and controlled because of the effect of moisture on product quality, storage conditions, product life, product weight and hence economic benefit. This can be done using microwave moisture measurement technique. In this paper we discuss about how to measure the moisture content present in various industries such as spice, sugarcane, food, rubber.

Keywords: absorption, adsorption, microwave, moisture, product, watermolecules