The short answer is no. Although pakkawood is mostly waterproof and heat-resistant, placing it in a dishwasher for long periods could damage it. Putting your pakkawood knife in this very hot and wet environment will degrade it over many washes. Even if pakkawood were completely dishwasher safe, it would be a big mistake to clean your knife with this machine. The blade would suffer the most; the water pressure and collisions within the dishwasher could blunt the edge. Depending on the blade material, long periods inside a dishwasher may cause rust to form.