to keep your knife looking it's best, follow these tips...

Always handwash your knife--DO NOT put knife in the dishwasher.

Dry entire knife thoroughly with a clean dish towel or paper towel immediately after handwashing.

Never leave knife submerged in water as this could cause the handle to swell/warp and/or the blade to rust. 

Regularly apply mineral oil or blade oil of your choice to the blade & handle (if handle is made with natural wood). 

If any issues develop with your knife, whether on the blade or handle, don't hesitate to reach out. I'd be happy to take a look at it and make further recommendations.