The first thing to keep in mind when wiring a kitchen or bathroom is the fact that appliances like electrical stovetops and microwaves are often located close to water sources. For this reason, the National Electrical Code stipulates that above counter sockets serving appliances need to protected by Ground Fault Circuit Interrupters (GFCIs).
A Ground Fault Circuit Interrupter reduces risks associated with home electrocution. Input and neutral circuit loads are monitored. When there is a disparity between voltage levels, the power to circuit is cut.
As well as GFCI protection, most kitchen appliances need to be served by dedicated circuits.
In the past, many appliances could be plugged into general main outlets. However, building code regulations in the U.S. now stipulate that appliances need to be served by circuits which power nothing else in the home.