Shapton Kuromaku Sharpening Stone - #1500 Blue
Whetstone — ToishiShapton Kuromaku #1500 Blue is a medium grit sharpening stone, coded blue, from the Kuromaku series, with a grit of 1,500. This stone comes into play immediately after the initial sharpening with a #1000 stone, preparing the edge for the next stage and serving as a crucial bridge in the middle part of the sharpening process.
About the Kuromaku Series
The Shapton Kuromaku series is a reference series trusted by professional chefs and knife makers in Japan for decades. Its resin binder technology fundamentally solves the problems of traditional waterstones — long soaking times, uneven wear, short lifespan. With Kuromaku, a few drops of water save dozens of minutes. The blue color code in this series represents the #1500 grit level.
#1500 Grit: The First Step After #1000
The #1000 stone is the "construction" phase of sharpening; it sets the angle and shapes the edge. The #1500, on the other hand, is the "plastering" phase of this construction: it removes the coarse scratches left by the #1000 and prepares the surface for finer stones. If this step is skipped, #3000 or #5000 stones will be overused and wear out unnecessarily. Recommended chain: #1000 → #1500 → #3000 → #5000 → #8000.
Technical Specifications
- Grit: #1500
- Color code: Blue
- Binder: Resin (vitrified bond)
- Abrasive: Aluminum oxide
- Water requirement: A few drops — no pre-soaking required
- Metal removal: Medium-high
- Function: Medium sharpening / transition after #1000
- Compatibility: Carbon steel, stainless steel, all profiles and geometries
Who Is It Suitable For?
It appeals to a wide range of users, from beginners who want to learn the sharpening process step by step to professionals with a strict sharpening chain. Especially for those who want to quickly sharpen knives that have become slightly dull from regular kitchen use, the #1500 is an ideal tool that reduces the load on the #3000 stone.
Usage Tips
- Switch to this stone after confirming that all #1000 scratches are gone.
- Monitor for burr formation on the blade edge; switch to the other side once a burr is formed.
- Use the entire surface of the stone — don't just focus on the center.
- Apply medium pressure on this stone; not too strong, not too light.
Care and Storage
Medium grit stones accumulate metal dust; clean and rinse with a brush after each use. Perform regular maintenance with a flattening stone or medium/coarse powder. A flat stone surface is the most fundamental condition for maintaining the correct angle.
Shipping Information
Orders placed by 2 PM are shipped the same day. Free shipping on orders over ₺1,000. Sharpening stones are sent in special protective foam packaging.
Returns & Exchanges
30-day unconditional return guarantee. The product must be in its original packaging and unused. If a manufacturing defect is found in the stone, an exchange will be made without a time limit.
Stone Care
After use, wash the stone with warm water and allow it to air dry. If the stone surface becomes uneven (dishing), correct it with a flattening stone. Protect the stone from direct sunlight and frost.
What is Grit? Which Stone Should I Choose?
Grit number indicates the abrasive grain density of the stone. A low number means coarser (fast material removal), and a high number means finer (polishing and finishing).
Technical
How to Know?
Sharpening with a Japanese whetstone involves 5 fundamental steps. When you correctly follow each step, your knife will return to its factory sharpness.
-
Name 1Soak the Stone
FloodedSubmerge the stone in clean water and wait until air bubbles completely stop. This can take between 5-15 minutes, depending on the type of stone.
Tip: Important: Do not soak splash-and-go type stones (like Shapton Pro) in water — just wet the surface. -
Name 2Adjust the Angle
Angle SettingPlace the knife against the stone at approximately a 15° angle. Hold the knife steady by applying light pressure to the blade surface with your index and middle fingers.
Tip: Easy method: Lay the knife flat on the stone, then lift the spine by the thickness of two coins — this is approximately 15°. -
Name 3Sharpen
To honeSlide the blade back and forth along the stone. Divide the blade into 3 sections from tip to heel and apply 20-30 strokes to each section.
Tip: Pressure: Light pressure on the forward stroke, no pressure on the backward stroke. The stone's own abrasiveness is sufficient. -
Name 4Finishing & Washing
Clean up the burrs on both sides with a few light strokes. Wash the blade with warm water and dry it. Also wash the stone and let it air dry.
Tip: Test: Hold a sheet of paper in the air and cut it — if it cuts cleanly and smoothly, the sharpening was successful.
Which knives is it used on?
Steel Types
- VG-10 (Stainless)The most common Japanese steel — excellent conformity
- Aogami Super (Carbon)High carbon — fast and effective sharpening
- SG2/R2 (Powder Metallurgy)Hard steel requires patient grinding
- German Steel (X50CrMoV15)Mild steel — sharpens very quickly
- Ceramic KnifeDiamond requires a stone — aquamarine is not suitable
Types of Knives
- Gyuto (Chef's Knife)210mm and above — fully compatible
- Santoku170mm — this is the ideal size for this stone
- Nakiri (Vegetable)Straight edge — easy sharpening
- Petty (Theft)Small knife — precise sharpening
- Serrated Bread KnifeIt can't be sharpened with a flat stone — it needs a special rod-shaped stone.
Suggested Sharpening Angles
- 10-12° Yanagiba / Sashimi
- 15° Japanese KnivesÖnerilen
- 20° Western / German Knives
Give Your Knives the Care They Deserve
Japanese water stone technology, trusted by professional chefs, now in your kitchen.
Frequently Asked Questions
Kargo süresi ne kadar?
Hediye paketi seçeneği var mı?
İade politikanız nedir?
Hangi ödeme yöntemlerini kabul ediyorsunuz?
Taksit seçeneği var mı?
Is this a Splash & Go stone, or does it require soaking?
The Shapton Kuromaku series is a Splash & Go type. Just sprinkle water on its surface before use; there's no need to immerse it in water. Ensure the surface remains moist during sharpening. This feature offers great convenience compared to traditional stones — you can start using it immediately.
My whetstone has dished, what should I do?
Use a flattening stone. Sharpening stones wear down and become concave over time. This distorts the sharpening angle and prevents even sharpening. Flatten the stone by moving the flattening stone back and forth on a wet surface. Draw a pencil grid — when the lines are completely erased, the stone is flat. Check out our flattening stones.
Is one stone enough, or should I buy a set?
A #1000 grit stone is sufficient to start. For weekly sharpening in a home kitchen, a #1000 grit stone will get the job done. However, if you want to get maximum performance from your kitchen knife, we recommend a #1000 + #3000 grit double set — the first sharpens, the second polishes. For professional use, the #320 + #1000 + #5000 triple set is ideal.
Can this stone also be used with German/Western knives?
Yes, it can be used on all metal knives. It also perfectly sharpens Western knives such as Wüsthof, Zwilling, and Victorinox. The only difference is the sharpening angle: use 15° for Japanese knives and 20° for Western knives. Since German steel is softer, the sharpening time will be shorter.
How should I store and care for the stone?
Wash after use and allow to air dry. Never store the stone wet in a closed box — it may develop mold. Protect from direct sunlight and frost. Shapton Kuromaku stones can be stored in their own plastic cases (the case also doubles as a stone holder). If not to be used for a long time, store in a dry and cool place.
Is a stone holder necessary?
We strongly recommend it for safety. A whetstone slipping during sharpening is both dangerous and reduces the quality of the sharpening. The silicone stone holder keeps the stone stable and protects your countertop from scratches. The plastic case of the Shapton Kuromaku can also be used as a basic holder, but the professional silicone holder provides a much more stable sharpening experience.
Give Your Knives a New Life
Centuries of Japanese waterstone technology, in your hands. More than a stone — an investment in every knife in your kitchen.
Add to Cart — 4,200.00TL