Any knife, be it a folding knife, a souvenir knife, a fillet knife or a kitchen knife, requires some care.  By performing the manipulations below from time to time, you will always have a good working tool at hand. Knife care includes three stages. If the knife is heavily clogged with dirt or covered in oil, it should be rinsed under running water.  To enhance the effect, please use a toothbrush: it will thoroughly remove all excesses. Please note: if...