Two high-quality knives can be different in terms of sharpness due to several factors, including:
Manufacturing Process: Even among high-quality knife manufacturers, there can be variations in the manufacturing process. Differences in blade materials, heat treatment, and grinding techniques can all affect how sharp the knife's edge is when it leaves the factory.
Grind and Edge Angle: The grind and edge angle of a knife play a significant role in its sharpness. Some knives are ground to be very thin at the edge, allowing for a sharper cutting edge. However, this might come at the expense of durability or edge retention. Different knife styles, such as Japanese or Western knives, may have varying edge angles that affect their sharpness.
Sharpening and Honing Techniques: Even with high-quality knives, the sharpness can degrade over time with regular use. How often a knife is sharpened and how well it is honed can impact its overall sharpness. Some people may maintain their knives meticulously, while others might not be as diligent in sharpening and honing them regularly.
Usage and Maintenance: How a knife is used and cared for can also influence its sharpness. Knives that are subjected to rough treatment or used on hard surfaces like glass or stone cutting boards can experience more dulling. Additionally, improper storage and cleaning practices can affect the knife's edge.
Personal Preferences: Sharpness is subjective to some extent. Some individuals prefer their knives to have a razor-sharp edge, while others might favor a slightly more robust edge for durability and longevity.
Customization and Specialty Knives: Some knife enthusiasts or professional chefs might customize or have specialty knives made to suit their specific preferences. These customizations can lead to significant differences in sharpness compared to standard off-the-shelf knives.
Remember that a knife's sharpness is not the only factor to consider when evaluating its quality. Other aspects such as edge retention, durability, balance, and handle comfort are also essential for choosing the right knife for your needs. Ultimately, the sharpness of a knife can be influenced by various factors, and it's essential to find a knife that suits your cutting style and culinary requirements.