Steam generator and cooking appliance

A steam generator, comprising:

• a steam case;
• a steam cover connected to the steam case;
• a steam chamber defined between the steam case and the steam cover;
• a steam heater to supply heat into the steam chamber;
• a water supply hole, through which water to generate steam is supplied into the steam chamber;
• a plurality of interference members disposed in the steam chamber to interfere with a flow of the water introduced through the water supply hole;
• and
• a discharge hole disposed above the water supply hole to discharge the steam generated in the steam chamber, wherein the water supply hole is defined in a lower portion of the steam cover, wherein the discharge hole is defined in an upper portion of the steam case, and wherein the steam chamber comprises:
• a first space disposed in a lower portion of the steam chamber, in which the water introduced through the water supply is heated;
• a second space defined above the first space so that the steam generated by heating the water in the first space is additionally heated therein;
• and
• a third space disposed above the second space, wherein the plurality of interface members is disposed in the first space, and the discharge hole is disposed above the second space in the third space, wherein the first space, the second space, and the third space are approximately equal in size, wherein each of the plurality of interference members includes an interference portion that interferes with the steam or water to prevent the steam or water from flowing upward, and a guide portion that guides the steam or water to allow the steam or water to flow upward or downward, wherein the interference portion extends in a substantially horizontal direction in the steam case, and wherein the guide portion extends in a substantially vertical direction in the steam case.