Abstract: A moisture control apparatus includes at least one electrode configured to receive at least one of an alternating current or a direct current, and to direct at least one of an electric field, a magnetic field, an electromagnetic field, an electromagnetic wave, a sonic wave, or a supersonic wave toward a substance. The moisture control apparatus further includes a controller configured to communicate with the at least one electrode, wherein the controller is configured to control a voltage applied to the at least one electrode to induce a bonded state between water molecules of moisture present in the substance.

Abstract: A moisture control apparatus includes at least one electrode configured to receive at least one of an alternating current or a direct current, and to direct at least one of an electric field, a magnetic field, an electromagnetic field, an electromagnetic wave, a sonic wave, or a supersonic wave toward a substance. The moisture control apparatus further includes a controller configured to communicate with the at least one electrode, wherein the controller is configured to control a voltage applied to the at least one electrode to induce a bonded state between water molecules of moisture present in the substance.

Abstract: Food containing water is improved. A fryer controls water which is an ingredient of food as an object placed between a pair of opposed plate antennas, to be more specific, the water activity of the object, by generating electromagnetic waves between the pair of opposed plate antennas. Then, the fryer applies a DC electric field of +100 V as an offset electric field on the water phase side relative to the oil phase in an AC electric field to irradiate food with electromagnetic waves at a frequency of 50 kHz. Thus, the interfacial polarization between the water phase and the oil phase can be increased to decrease the interfacial tension between the water phase and the oil phase by approximately 60% and bind water in a pearl-chain structure, thus decreasing the water activity.