How should I store a T10 carbon steel katana long-term?

 Updated Mar 2026

T10 carbon steel is not stainless and will oxidize if left unprotected. For long-term display or storage, apply a thin, even coat of choji oil or pharmaceutical-grade mineral oil to the bare blade every two to three months - or monthly in coastal or high-humidity environments. Always handle the blade with cotton gloves, as fingerprint acids accelerate surface oxidation. Store the assembled katana horizontally with the edge facing upward inside the saya, and keep the assembly in a paulownia wood box or a padded sword bag to protect the lacquered scabbard from chips and dust. Avoid storing near heating vents or in areas with significant temperature swings, as repeated expansion and contraction can stress the lacquer finish on the saya over time.

Popular Products

20% OFF
259.00 USD
329.00 USD
20% OFFwakizashi sword
219.00 USD
279.00 USD
20% OFFshirasaya katana
209.00 USD
259.00 USD
20% OFFblack katana
209.00 USD
259.00 USD
15% OFFshirasaya tanto
149.00 USD
179.00 USD
20% OFFblue katana
209.00 USD
259.00 USD
15% OFFshirasaya tanto
149.00 USD
179.00 USD
15% OFFjapanese katana
199.00 USD
239.00 USD
15% OFFblack katana
199.00 USD
229.00 USD
15% OFFwhite katana
209.00 USD
249.00 USD
15% OFFred katana
199.00 USD
229.00 USD
20% OFFjapanese katana
169.00 USD
209.00 USD
20% OFF
259.00 USD
329.00 USD
20% OFFwakizashi sword
219.00 USD
279.00 USD
20% OFFshirasaya katana
209.00 USD
259.00 USD
20% OFFblack katana
209.00 USD
259.00 USD
15% OFFshirasaya tanto
149.00 USD
179.00 USD
20% OFFblue katana
209.00 USD
259.00 USD
15% OFFshirasaya tanto
149.00 USD
179.00 USD
15% OFFjapanese katana
199.00 USD
239.00 USD
15% OFFblack katana
199.00 USD
229.00 USD
15% OFFwhite katana
209.00 USD
249.00 USD
15% OFFred katana
199.00 USD
229.00 USD
20% OFFjapanese katana
169.00 USD
209.00 USD

Explore Our Collections