Wash the knife by hand using a gentle dishwashing liquid. Do not use abrasive products, such as steel wool. Dry immediately with a soft cloth.
Do not let the knife drip dry.
Do not wash your knife in a dishwasher, as it encourages the blade to rust and the wooden handle to dry out and crack over time.
When cutting acidic foods such as tomatoes, onions or lemons, rinse and dry the blade immediately.
The knife is made of Japanese carbon steel. It's natural for the blade to patina over time. The patina results from coming in contact with food ingredients.
Your new knife is made from high quality Japanese carbon steel. This means that the blade may rust if left wet. This can take a very short time, especially with a new knife, so it is advisable to clean the blade regularly as you use it.
Japanese traditionally use Camellia (Tsubaki) Oil to treat carbon steel tools. Clean and dry the blade before applying the oil. Then wipe the blade with a clean cloth impregnated with the Camellia Oil. Re-apply regularly.
If rust does appear on the blade, use a rust remover.
The wooden handles also require care. Depending on use, we recommend oiling the handle every 3 – 12 months (depending on use) with mineral oil or tung oil.
Store your knife in a saya (our recommendation), the original box, a knife block or a mounted knife magnet bar/strip.
Japanese knives have a very fine edge and excellent edge retention. However, this means the edge can be damaged easily. Therefore, DO NOT cut hard ingredients (e.g. frozen food, bones, hard rind on parmesan cheese, woody rosemary stalks, hard pumpkins, coconuts, etc) or non-ingredients.
Do not drop your knife.
Only cut ingredients on a wooden chopping board.
For best results, your Japanese knife should be sharpened using a whetstone. We highly recommend that the edge be stropped, with a leather strop, after sharpening.
Do not use pull through sharpeners, regular or diamond honing steels or mechanical sharpening machines.