At first it is not conform that in which direction is your kitchen. Kitchen most suitable direction is South East (Agnicone) in the house /flat and etc. South facing direction of kitchen should not be at South East place. If the your Kitchen is not at proper place then you should try it change then other direction. If it is not possible then you should follow the following Vastu tips :
1. Windows and exhaust fan should be in East direction.
2. Gas Cylinder, Store, Heater and etc should be East corner.
3. There is no any bathroom over the kitchen and under the kitchen.
4. Kitchen Articles should be green colour.
5. The dinning table should not be in the kitchen room.