Hasu Seizo Blog

Whetstone Grit Explained: Choosing the Right Grit for Japanese Knives

Confused by whetstone grit numbers? This in-depth whetstone grit guide explains exactly which grit you need for Japanese knives—whether you’re restoring an edge or refining razor-sharp performance.

Common Knife Sharpening Mistakes (And How to Fix Them)

Sharpening a knife shouldn’t feel mysterious—but small mistakes can quietly ruin your edge. Learn the most common knife sharpening errors home cooks make and how to fix them for cleaner cuts, longe...

How to Flatten a Whetstone (And Why It Matters for Sharpness)

A flat whetstone is the foundation of a sharp knife. Learn how to flatten a whetstone properly, how often it’s needed, and why uneven stones sabotage your sharpening results—no matter your skill le...

How Often Should You Sharpen Japanese Knives? A Practical Guide

How often should you sharpen Japanese knives? The answer depends on steel type, cutting habits, and daily care. This practical guide breaks down sharpening frequency, maintenance tips, and simple h...

The Complete Guide to Sharpening Japanese Knives: Stones, Techniques, and Angles

Sharpening Japanese knives isn’t just maintenance—it’s part of the craft. This complete guide walks you through choosing the right whetstone, mastering sharpening angles, and using proven technique...

What Angle To Sharpen Japanese Knives For Best Results

When it comes to sharpening Japanese knives, many chefs and home cooks ask: what angle to sharpen Japanese knives for the best results? Unlike Western knives, which typically have a more obtuse edg...

How to Sharpen Japanese Knives

If you’ve already purchased a nice set of Japanese chef knives, you obviously consider quality to be something important. Maintaining sharp and pristine Japanese knives is essential to preserve the...

How to Prevent Rust on Your Japanese Kitchen Knife

Renowned globally for their superb craftsmanship, razor-sharp edges, and cultural significance, Japanese kitchen knives demand special care to maintain their excellence. Preventing rust is paramoun...

Cleaning Knives The Right Way: Why You Should Handwash

Cleaning knives is essential in caring for them and honoring their heritage, especially for Japanese knives. The artistry of knives has been perfected over centuries. Knowing how to wash a knife en...

How to Make Your Japanese Kitchen Knives Last Longer

Investing in high-quality knives is an important investment for all chefs. However, what’s even more important is performing proper maintenance to ensure your Japanese knives can serve you for the ...