Clean the stove regularly after cooking to avoid extra smoke and burnt smell. In the worst case the smoke can activate your fire alarm device! For the oven you can buy special cleansers and, to ease your own work, use oven bowls and special baking paper for the oven. Clean the grease filter in the stove fan to prevent it from becoming blocked.
Remember that it is forbidden to pour frying fat or other waste into the drain (sink).
Sometimes the wash basin and kitchen piping can be blocked. Then prefer calling the caretaker before starting own investigations; you don’t need to become a self-made plumber.
Clean the refrigerator and the freezer now and then for hygiene and energy saving reasons. Melt the freezer approximately two times a year and, at the same time, carefully clean the refrigerator.