Wash the knife with warm water before using it for the first time. After each use, make sure to wash the knife immediately (with a mild detergent) and dry it with a soft cloth. Especially if you have cut acidic foods, you should wash the knife immediately after use.
For your own safety, you should always wipe the knife away from your body and away from its edge, using a cloth or towel.
It is not recommended to wash it in the dishwasher, but by hand, in order to protect its material and maintain its sharpness for a long time.