Edge&Haft

Japanese kitchen knives for US home cooks

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Topics

  1. 01Shapes and how to use them包丁
  2. 02Brands and lineups銘
  3. 03Knife sets and blocks揃
  4. 04Steel and hardness鋼
  5. 05Sharpening and edges砥石
  6. 06Care, rust and repair手入れ

Reference

  • Fixes
  • Steel chart
  • Angle finder
  • Buying guides
  • Charts
  • All notes
  1. 01Knife shapes
  2. 02Brands
  3. 03Knife sets
  4. 04Steel and hardness
  5. 05Sharpening
  6. 06Care and repair
  1. 01Shapes and how to use them包丁
  2. 02Brands and lineups銘
  3. 03Knife sets and blocks揃
  4. 04Steel and hardness鋼
  5. 05Sharpening and edges砥石
  6. 06Care, rust and repair手入れ
Home / Fixes

Fixes

Knife problems, one page each

What happened to the blade, why, and what you can fix at home before you send it out or buy a new knife.

  • Handle loose, wobbly or crackedA loose or cracked knife handle can often be fixed. When to use the warranty, when to rehandle a wa handle, and the care habits that stop it happening again.Care, rust and repair→
  • Edge dulls within daysWhy a knife dulls quickly: hard cutting boards, scraping with the edge, twisting, over-honing and leftover burrs. Fix each cause and keep your edge longer.Care, rust and repair→
  • Orange rust spots on the bladeRemove rust spots from carbon or stainless Japanese knives with a rust eraser or mild abrasive, then stop it coming back with drying and storage habits.Care, rust and repair→
  • Chips or nicks in the edgeWhy hard Japanese knife edges chip, how to fix small chips on a coarse whetstone step by step, and when to send a chipped knife to a pro or the maker.Care, rust and repair→
  • Snapped or bent knife tipHow to fix a broken knife tip by regrinding a new point on a coarse whetstone, restoring the edge profile, and when to send the knife to a pro instead.Care, rust and repair→
Edge&Haft

Plain answers about Japanese kitchen knives for home cooks: shapes, steels, sharpening and care. Buying guides are chosen from what the listings state, not from hands-on tests. How that works.

Topics

  • 01Shapes and how to use them
  • 02Brands and lineups
  • 03Knife sets and blocks
  • 04Steel and hardness
  • 05Sharpening and edges
  • 06Care, rust and repair

Reference

  • Steel chart
  • Angle finder
  • Buying guides
  • Charts
  • All notes
  • About
  • How we pick
  • Contact
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  • Privacy
Units
mm, degrees, HRC
Edge angle
per side
Written for
US home cooks
Sheet
2026

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