Kitchen is the main place of house. In ancient times, cooking was done on open stoves and the washing of utensils, and preparation of food was all done outside. Hence Vastu guidelines were primarily based on the Sun and the main wind directions. There are some of the vastu tips for kitchen. Check out-
South-East or North-West
The Scientific Reason, In earlier times, when the cooking was done on open stoves outside the house and combustible building materials were prone to catch fire, the cooking fire was preferred in the S-E corner or the N-W corner, where the hot summer wind, blowing from the S-W to the N-E direction could not cause damage by carrying sparks.
Avoid the Kitchen in the North-East
The Scientific Reason, Since the constant, morning sunlight enters from the North and East sides, these areas are reserved for a Meditation room and a Living hall from which all other spaces open. Hence it is a waste to have a Kitchen here.
The door should open clockwise
The Logic Most of the population being right handed, it is easier to open the door in a clockwise direction when entering into the Kitchen.
One should cook facing East
The Scientific Reason, Since the women get tied down with kitchen chores from early morning, they don't get a chance to get exposed to the useful morning sunrays. So the best solution, was to force the women to cook facing East so that they would benefit from the sunlight falling on them.
Water taps
There should be no leaking taps in the kitchen. The Logic, It is quite difficult to wash if the sink is in the corner of two counters, as you tend to lean uncomfortably forward. Leaking taps just waste water.