Knife Sharpening with a Whetstone

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knife sharpening whetstone

Sharpening a knife is an essential skill, especially for those who frequently use knives for cooking, outdoor activities, or hobbies. This comprehensive guide will walk you through the process of knife sharpening, particularly with a whetstone, and provide helpful tips for beginners.

Why Knife Sharpening is Important

A dull knife is not just inconvenient. It’s unsafe. When a knife loses its sharpness, you’re forced to exert more pressure to make cuts, increasing the risk of the knife slipping and causing injury. Furthermore, a dull knife can damage the food you’re cutting by crushing it instead of slicing cleanly through. Hence, regular knife sharpening is an essential part of knife maintenance.

Why a Sharper Knife is Safer Than a Dull One

Contrary to common belief, a sharper knife is indeed safer than a dull one. When a knife is sharp, it requires less pressure to cut through food, decreasing the chances of it slipping off the food and into your hand. Additionally, a sharper knife provides cleaner, more precise cuts, enhancing the overall quality of your meal preparation.

Sharpening Tips for Starters

Before you begin your knife sharpening journey, here are some helpful tips:

  • Choose the Right Whetstone: Whetstones come in various grits, ranging from 100 to 10,000. For beginners, a double-sided whetstone with a medium grit (about 1000) and a fine grit (about 6000) is recommended.
  • Maintain Your Whetstone: Whetstones require regular maintenance to stay effective. After each use, clean your whetstone with water and a soft brush and allow it to air dry.
  • Learn the Correct Technique: The key to effective knife sharpening is mastering the right technique. This involves holding the knife at the correct angle and applying even pressure as you slide the knife across the stone.
  • Be Patient: Knife sharpening is a skill that requires practice. Don’t be discouraged if your first few attempts don’t yield the desired results. With patience and persistence, you’ll improve over time.

How to Use a Whetstone

Whetstones, also known as sharpening stones, are widely used for knife sharpening due to their precision and control. Here’s a step-by-step guide on how to use a whetstone:

Step 1: Preparing Your Whetstone

Before you start sharpening, your whetstone needs to be properly prepared. This typically involves soaking the stone in water for at least 10 minutes until no more air bubbles are released. This process, known as “lubricating,” reduces friction during sharpening and preserves the stone’s lifespan.

Step 2: Setting Up Your Workspace

Once your whetstone is prepared, place it on a non-slip surface such as a damp towel or a silicone mat. This ensures stability while sharpening.

Step 3: Determining the Sharpening Angle

The angle at which you hold your knife against the whetstone is crucial for effective sharpening. Most kitchen and EDC (Everyday Carry) knives are sharpened at an angle of about 17 degrees. However, the angle may vary depending on the type of knife and its intended use.

Step 4: Sharpening Your Knife

Hold your knife at the determined angle and slide the blade across the whetstone, starting from the base of the blade to the tip. Repeat this process on both sides of the knife until the blade is sharp.

Step 5: Finishing Up

After sharpening, clean your knife with warm water and dry it thoroughly to prevent rusting. Also, allow your whetstone to dry completely before storing it to prevent mold and mildew.

Choosing the Right Whetstone

When it comes to whetstones, one size does not fit all. Different knives and tools require different types of whetstones. There are two main types of whetstones—oil stones and water stones.

Oil Stones

Oil stones are traditional sharpening stones that are often used with oil as a lubricant. They are typically made of novaculite, a type of stone quarried in the United States, especially in Arkansas. Oil stones are durable and offer a slow, steady rate of sharpening.

Water Stones

Water stones, on the other hand, are softer than oil stones and provide a faster rate of sharpening. They are often preferred because they are less messy and easier to clean than oil stones. Water stones also come in a wider variety of grits, allowing for more precise sharpening.

The Importance of Grit

The grit of a whetstone refers to the size of the abrasive particles on the stone. The lower the grit number, the coarser the stone, and the more material it removes with each pass. Conversely, a higher grit number indicates a finer stone that removes less material and provides a sharper edge.

For beginners, a double-sided whetstone with a medium grit (about 1000) for shaping the edge and a fine grit (about 6000) for honing is recommended.


Knife sharpening is an essential skill that enhances safety and efficiency in the kitchen and outdoors. With the right whetstone, proper technique, and regular practice, you can keep your knives sharp and in optimal condition. Remember, a sharper knife is a safer knife. So keep sharpening, and stay safe!