Most of Niwaki’s sharp tools are made from carbon steel. This means they will, through regular use, stain (and eventually rust) and gradually lose their edge. Caring for them involves three things.
1. Use correctly: Japanese steel is hard and sharp and can be more brittle than some people are used to - it will chip if abused. Do not cut wire, metal, stone, plastic, or any other hard material. Even bamboo fibers and certain very hard woods, especially the knots and burrs, can damage steel edges. Do not twist or apply uneven pressure. Cut diagonally across branches (not straight across) so you cut along the fibers. Remember, shears are not loppers. Please pay attention to maximum cut dimensions. Use the base of the blades, not the tips, for heavier cuts.
2. Keep clean: Remove leaf resin, rust, and gunk with a Crean Mate Rust Eraser, available at Bloomist here.
3. Dry, wipe, and store in a dry place.
