Handle Japanese knives carefully - the steel is brittle. Don't cut bones, don't use on hard surfaces, don't chuck them about and don't put them in the dishwasher. Handle them like you handle your wine glasses and you'll be fine.
- hand wash
- avoid soaking - especially the traditional style knives, as it expands the wooden handles
- dry throroughly
- store individually
- wipe over with Camellia Oil if not using regularly
- sharpen every two weeks or so of regular use
- use the Niwaki Combination Stone for everyday sharpening