What is a Santoku knife used for?
A Santoku knife is a versatile Japanese kitchen knife designed for precision cutting, slicing, dicing, and chopping. The name “Santoku” translates to “three virtues”, referring to its ability to handle meat, fish, and vegetables efficiently. With its shorter, wider blade and straight edge, a Santoku knife is perfect for fast, controlled cuts in everyday cooking.
1. Chopping, Slicing, and Dicing
A Santoku knife is excellent for chopping vegetables, slicing meats, and dicing herbs or nuts. Unlike a chef’s knife, which has a curved blade designed for a rocking motion, the Santoku knife uses an up-and-down chopping technique, making it ideal for quick, precise cuts.
The flat edge ensures that the knife makes full contact with the cutting board, reducing the need for extra motion and making prep work more efficient.
2. Precision Cuts on Meat and Fish
While not as specialized as a filleting or carving knife, a Santoku knife works well for cutting boneless meats and fish. The thin, sharp blade allows for clean slices, making it a good option for cutting chicken, pork, or salmon into uniform pieces.
Some Santoku knives feature a Granton edge (dimples along the blade), which helps prevent food from sticking, making it especially useful when slicing fish or thin meat cuts.
3. Finely Mincing Herbs and Garlic
The Santoku knife’s wide blade makes it easy to gather and transfer ingredients from the cutting board to a pan or bowl. The sharp edge allows for precise mincing of garlic, onions, ginger, and herbs with little effort.
4. Thin and Even Vegetable Slices
A Santoku knife is excellent for slicing vegetables into thin, uniform pieces. Whether you’re cutting cucumbers, carrots, potatoes, or cabbage, the wide, sharp blade ensures consistent thickness, making it perfect for salads, stir-fries, and garnishes.
Unlike a chef’s knife, which requires a rocking motion, the Santoku’s straight-edged blade allows for downward chopping, making it faster and more efficient when slicing vegetables.
How does a Santoku knife differ from a chef's knife?
Both Santoku knives and chef’s knives are versatile kitchen tools, but they have distinct designs, cutting techniques, and best-use cases. While both knives can handle slicing, dicing, and chopping, they differ in shape, weight, and cutting motion, which affects their performance in different kitchen tasks.
Blade Shape & Design
The Santoku knife is typically shorter, ranging from 13-18 cm (5-7 inches), with a flat edge and a slightly curved tip. Many Santoku knives feature a Granton edge (small dimples along the blade) to prevent food from sticking. This design makes it ideal for precise, clean cuts with minimal friction.
In contrast, a chef’s knife is usually longer, between 15-30 cm (6-12 inches), with a curved edge designed for a rocking motion. The blade is thicker and heavier, allowing for more forceful chopping and slicing. The curved design makes it ideal for continuous, smooth cuts, especially when cutting larger ingredients.
Cutting Technique
The Santoku knife is designed for an up-and-down chopping motion rather than the rocking motion commonly used with a chef’s knife. This makes it particularly effective for precise, fast chopping of vegetables, herbs, and boneless meats. Because the blade is flat, it maintains full contact with the cutting board, making each cut more efficient.
A chef’s knife, on the other hand, is best suited for a rocking motion, where the blade moves back and forth while the tip stays in contact with the cutting board. This technique is particularly useful for chopping dense ingredients, such as large root vegetables and thick cuts of meat. The curved blade also allows for effortless mincing of herbs and garlic.
Best Uses
A Santoku knife excels at thin slicing, dicing, and chopping. It is particularly useful for precise vegetable cuts, julienne slicing, and cutting fish or boneless meats. The lightweight design and straight blade make it ideal for clean, controlled cuts, making it a favourite among home cooks and professional chefs for tasks that require finesse.
In contrast, a chef’s knife is a more heavy-duty, all-purpose knife that can handle larger and tougher ingredients. It is well-suited for breaking down whole chickens, chopping thick meats, and cutting through large vegetables like pumpkins or squash. The added weight and curved blade provide extra power and control, making it a go-to knife for those who need a robust kitchen tool.
Weight & Balance
A Santoku knife is generally lighter and easier to control, making it an excellent choice for those with smaller hands or who prefer a knife that reduces wrist strain. The compact, well-balanced design allows for fast, efficient cutting without excess fatigue.
A chef’s knife, however, is heavier, which gives it more chopping power but can also require more effort to control. The additional weight helps when cutting through dense foods, but for those who prefer a lightweight knife with a smooth slicing experience, a Santoku knife may be a better choice.
Which One Should You Choose?
If you prioritise precision, speed, and ease of handling, a Santoku knife is a great option. It’s best for those who frequently cut vegetables, fish, and boneless meats, and who prefer a lightweight, well-balanced knife for daily prep work.
However, if you’re looking for a versatile, all-purpose knife that can handle a wider range of kitchen tasks, including chopping thick meats and larger vegetables, then a chef’s knife is the better choice. It’s ideal for cooks who prefer the rocking cutting technique and need extra power for tougher ingredients.
How do I maintain and sharpen a Santoku knife?
A Santoku knife is an essential kitchen tool that requires proper care to maintain its sharpness, durability, and longevity. Since Santoku knives are often made from high-carbon stainless steel or Japanese VG-10 steel, they need gentle cleaning, careful storage, and regular sharpening to stay in top condition.
Cleaning and Storage
To keep your Santoku knife in excellent condition, always hand wash it after use. Use warm, soapy water and a soft sponge to remove food residue, then rinse and dry immediately with a clean towel. This prevents rust, stains, and water spots from forming on the blade.
Avoid using the dishwasher, as high heat, harsh detergents, and water pressure can damage the blade’s edge and weaken the handle over time.
How to Hone a Santoku Knife
Using a ceramic or fine-grit honing rod helps keep your Santoku knife sharp between sharpening sessions.
1️⃣ Hold the honing steel vertically, with the tip resting on a solid surface.
2️⃣ Place the knife at a 15-degree angle against the steel.
3️⃣ Slide the blade down and across the rod in a sweeping motion, moving from the heel to the tip.
4️⃣ Repeat this process 5-10 times per side to maintain the edge.
Honing does not sharpen the knife, but it helps maintain its sharpness for longer periods.
How to Sharpen a Santoku Knife
Santoku knives often have a thinner, harder steel blade, meaning they require gentle sharpening techniques to avoid damage. Here are the best methods:
Whetstone (Best for Longevity)
Using a whetstone (sharpening stone) is the best way to restore a dull Santoku knife while maintaining its blade integrity.
1️⃣ Soak the whetstone in water for 10-15 minutes (if using a water stone).
2️⃣ Place the stone on a non-slip surface to prevent movement.
3️⃣ Hold the knife at a 15-degree angle and glide it across the stone in a smooth, controlled motion.
4️⃣ Flip the knife and repeat the process on the other side.
5️⃣ Use a fine-grit whetstone to refine the edge and create an extra sharp finish.
Pull-Through Sharpener (Quick but Less Precise)
A pull-through sharpener is a convenient option, but it removes more metal than necessary, which can shorten the knife’s lifespan.
1️⃣ Insert the knife into the coarse slot and pull it through 3-5 times.
2️⃣ Repeat in the fine slot to refine the edge.
3️⃣ Wipe the blade clean after sharpening.
Professional Sharpening
If you’re not comfortable sharpening your Santoku knife yourself, consider using a professional sharpening service. Many high-end knife brands offer lifetime sharpening for their products. This ensures that your knife is sharpened properly without the risk of damaging the blade.
This option is best for expensive Santoku knives that require precision sharpening.
Extra Tips for Santoku Knife Care
To keep your Santoku knife in top condition for years, always use a wood or bamboo cutting board, as these materials are softer and help protect the knife’s edge. Avoid cutting on glass or stone surfaces, as they can dull the blade much faster.
Also, never use a Santoku knife to cut bones or frozen foods, as this can chip or damage the fine edge. If you notice the knife struggling to slice through soft ingredients like tomatoes or herbs, it’s time for a sharpening session.
