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A microwave oven is capable of cooking food using steam produced in a cooking cavity. The microwave oven includes a cabinet in which a cooking cavity is defined. A microwave heating unit radiates microwaves into the cooking cavity. A steaming unit is provided on a predetermined position of the cabin

A microwave oven is capable of cooking food using steam produced in a cooking cavity. The microwave oven includes a cabinet in which a cooking cavity is defined. A microwave heating unit radiates microwaves into the cooking cavity. A steaming unit is provided on a predetermined position of the cabinet to define a cooking space, which is partitioned from the cooking cavity. A steam guide passage guides steam produced in the cooking cavity, into the steaming unit.

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1. A microwave oven, comprising:a cabinet in which a cooking cavity is defined; a microwave heating unit to radiate microwaves into the cooking cavity; a steaming unit provided on a predetermined position of the cabinet to define a cooking space which is separate from the cooking cavity; and a steam

1. A microwave oven, comprising:a cabinet in which a cooking cavity is defined; a microwave heating unit to radiate microwaves into the cooking cavity; a steaming unit provided on a predetermined position of the cabinet to define a cooking space which is separate from the cooking cavity; and a steam guide passage to guide steam produced in the cooking cavity, into the steaming unit. 2. The microwave oven according to claim 1, further comprising:an electrical component area provided in the cabinet to be partitioned from the cooking cavity, with the microwave heating unit installed in the electrical component area; and a blowing unit installed in the electrical component area to cool the microwave heating unit and to blow air into the cooking cavity; and a hole provided on a partition wall which partitions the electrical component area from the cooking cavity, the hole thus circulating the air from the electrical component area into the cooking cavity by the blowing unit. 3. A microwave oven, comprising:a cabinet in which a cooking cavity is defined; a microwave heating unit to radiate microwaves into the cooking cavity; a steaming unit provided on a predetermined position of the cabinet to define a cooking space which is partitioned from the cooking cavity; a steam guide passage to guide steam produced in the cooking cavity, into the steaming unit; a depression having a predetermined depth to receive food and formed on an upper portion of the cabinet wherein an interior of the depression communicates with the steam guide passage; and a cover to cover an open upper portion of the depression. 4. The microwave oven according to claim 3, wherein the steaming unit further comprises:a food container removably set in the depression, with an opening provided at a sidewall of the food container to communicate with the steam guide passage; and a food support plate in the food container spaced apart from a bottom of the food container, wherein the food is supported, with the steam circulating through the food support plate. 5. A microwave oven comprising:a cabinet having a cooking chamber, a machine room that contains a plurality of electrical components for use in cooking food in a cooking chamber; a steamer defining a steaming chamber separate from the cooking chamber, the steamer disposed in the cabinet; an exhaust path to exhaust steam from the cooking chamber to the steamer; and a blower fan assembly including a drive motor to create air flow through the cooking chamber and along the exhaust path to the steamer, wherein a first food item is cooked in the cooking chamber and a second food item is steamed in the steaming chamber. 6. The microwave according to claim 5, wherein the steamer comprisesa food container coupled to the exhaust path; and a cover selectively engaging the food container. 7. The microwave according to claim 6, wherein the cooking chamber and the steamer operate simultaneously.8. The microwave according to claim 6, wherein the food container further comprises a removable plate, having a plurality of perforations and a plurality of legs, in the food container to support food above a bottom of the food container.9. The microwave according to claim 8, wherein the exhaust path is coupled to the food container in a side of the food container disposed above the bottom of the food container and below a bottom of the removable plate.10. The microwave according to claim 6, wherein the food container further comprises a removable tray having a plurality of perforations, wherein a bottom of the tray is separated from a bottom of the food container.11. The microwave according to claim 10, wherein the exhaust path is coupled to the food container in a side of the food container disposed above the bottom of the food container and below the bottom of the tray.12. A microwave oven comprising:a cabinet having a cooking chamber and a machine room that contains a plurality of electrical components for use in cooking food in a cooking chamber with microwave radiation; a steamer integral with an upper portion of the cabinet; and an exhaust path to exhaust steam from the cooking chamber to the steamer; wherein the steamer is separate from the cooking chamber. 13. The microwave according to claim 12, further comprising a blower fan assembly including a drive motor disposed in the machine room to create air flow through the cooking chamber and along the exhaust path to the steamer.14. The microwave according to claim 12, wherein a first food is cooked with microwave radiation in the cooking chamber and a second food is cooked with steam, generated from the first food cooked in the cooking chamber, in the steamer.15. A microwave oven comprising:a cabinet having a cooking chamber and a machine room that contains a plurality of electrical components for use in cooking food in a cooking chamber with microwave radiation; a steamer integral with an upper portion of the cabinet; and an exhaust path to exhaust steam from the cooking chamber to the steamer, wherein the steamer comprises: a removable food container recessed in the upper portion of the cabinet coupled to the exhaust path; and a removable cover sealing the food container. 16. The microwave according to claim 15, wherein the exhaust path is coupled to the food container in a side of the food container.17. The microwave according to claim 16, wherein the food container further comprises a removable plate having a plurality of holes and a plurality of supports in the food container to support food above a bottom of the food container.18. The microwave according to claim 17, wherein the exhaust path is coupled to the food container in the side of the food container offset from the bottom of the food container and a bottom of the removable plate.19. The microwave according to claim 16, wherein the food container further comprises a removable tray having a plurality of holes, wherein a bottom of the tray is offset from a bottom of the food container.20. The microwave according to claim 19, wherein the exhaust path is coupled to the food container in a side of the food container offset from the bottom of the food container and the bottom of the tray.