It is generally not recommended to wash kitchen knives in the dishwasher. While it is possible to wash some types of knives in the dishwasher, there are a few reasons why it may not be the best choice:

1. Dishwashers can be harsh on the blades of knives, causing them to become dull or damaged over time.
2. Knives can damage other items in the dishwasher, such as glasses and dishes, if they are not properly secured.
3. Knives can be difficult to secure in the dishwasher and may not come out as clean as they would if washed by hand.

To properly care for your kitchen knives, it is generally best to wash them by hand with warm, soapy water and a soft sponge or brush. This will help to preserve the sharpness and condition of the blades and prevent them from becoming dull or damaged. After washing, be sure to dry the knives thoroughly to prevent rusting.