Step2　Selecting blade material

The first and most important point is whether to use the "rustproof" or "rust-resistant" type.
It is the "rust-resistant type" that is easier to care for, though,
To learn to take care of tools, it is the "rust-proof" type Carbon Steel.

Recently, the development of rust-resistant steel has been progressing, and its sharpness has been improved, so that rust-resistant kitchen knives can be seen in many Japanese kitchens.

Four points for steel selection

①Hardness	Hardness forms the foundation of sharpness.
②Friction resistance	Sustained Sharpness
③Toughness	Less likely to chip or roll the blade.
④Corrosion resistance	Resistant to rusting.

	①	②	③	④
Blue#1	○	○	△	☓
Blue#2	○	○	○	☓
White#1	○	○	△	☓
White#2	△	○	○	☓
Nihonkou	△	△	○	☓

	①	②	③	④
Super Steel	○	○	○	○
ZDP189	○	○	△	○
Ginsan	△	△	○	○