Removing Oil and Cleaning the Blade

Before applying fresh oil, old oil must be removed to prevent dust accumulation and residue buildup.

Recommended Materials:

  • Soft microfiber cloth (replaces traditional nuguigami paper)
  • Dry, lint-free cleaning cloth

Steps for Oil Removal:

  1. Hold the Sword Securely:
    • Grip the nakago with a soft cloth, keeping fingers away from the blade.
  2. Use a Microfiber Cloth to Wipe the Blade:
    • Starting from the tang side (machi) and moving toward the tip (kissaki), gently wipe the blade with a clean microfiber cloth.
    • Use light, single-direction strokes to avoid spreading residue.
  3. Repeat with a Dry Cloth If Needed:
    • If excess oil remains, repeat with a separate dry cloth.
    • Ensure no streaks or lint remain on the steel.

Note: Avoid using uchiko (powdered polishing stones) as they can cause micro-scratches and degrade the polish over time.