Best Japanese Sharpening Stone To Keep Knives Razor Sharp

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Having dull knives in the kitchen could be classified as a catastrophe in its merit. However, aside from your culinary skills, kitchen knives could make or break your career as a chef. For instance, a sharp knife could be the difference between good sushi and meh! Sushi. Ingredients such as vegetables, poultry fish, and meats that need deboning, peeling, carving and mincing, will need ultra-sharp knives, which is where the best Japanese sharpening stone comes in.

Not all sharpening stones are the same, they all come in different grit sizes, and the grit sizes are given numbers. For instance, a higher number denotes a higher density which is what you'd use for a fine razor-sharp finish on the polished object's surface. FYI, the Japanese used natural stones as sharpening stones that were lubricated with water.

In this case, grit size refers to the smoothness that's produced when you sharpen a blunt knife by the sharpening stone. On the other hand, the grit size depends on certain factors, which include the shape of the particles, how a binder exposes each particle, how the larger particles are fractured into, the smaller ones by either polishing or grinding, the chemical composition of particles, the hardness of particles, etc.

Which Water Stone Is Best?

Japanese water stones come as either natural or synthetic, and either are known for their superior sharpening performance. This applies to Japanese tools and their Western equivalents as well. In this process, the loosely bonded abrasive grit is quickly washed out since it blunts during this sharpening process. It then exposes the new, sharp particles that can then work on the blade. Note that water stones are only lubricated using water; never use any oil.

Experienced knife makers formulate their knife sharpeners in different mixes and qualities. Therefore, most woodworkers will choose different stones from several different manufacturers to build a set of sharpening stones. However, once you get to know the stone's traits that work for you, you can find and settle that one supplier that provides all the stones you may need. At times this comes with its advantages. But then again, no one size fits all; each stone will fit some of your needs and preferential work style.

Which Knife Sharpener Stone Is Best for You?

a) Rough sharpening

This is when you need to remove chips along the rough edges or restore a really dull blade. In this case, you'll need stones that are between 120-400 grit.

b) Normal sharpening

In this case, you can use stones with a 700-2000 grit stone. However, taking off fine scratches and burrs that are left by the coarser stones or polishing the surface will need stones that are starting at 2000 grit. Technically, there's no upper limit, but stones above 10000 grit will practically not achieve such a measurable improvement on the edge. Interestingly, there is no Japanese measurement standard that's above 8000 grit. This means that, in the case where a stone is labeled as a fine grit stone, you simply have to take that manufacturer's word for it.


If you have considerable experience with knife sharpening, then a finishing stone of 8000 grit would work best for you. However, if in doubt or are a beginner, then stones from 3000-6000 grit will still give you acceptable results.

Practically, if you also need to do a significant amount of knife sharpening, then you'll need at least 3 stones; one to rough-grind, one to do the sharpening and one to hone.

But if you occasionally sharpen blades and know that you won't need to remove the chip along the blade's edge, a combination stone will definitely suffice. The trade-off between the cost and speed will always determine the size that you choose. This means that the bigger the stone, the faster you can work and vice versa.

What Are The Types of Sharpening Tools?

a) Natural Whetstones 

These are naturally mined in different parts of the world. These are quite hard and will last you a long time. However, on the downside, natural Novaculite stones cut relatively slower and will usually need plenty of oil for lubrication.

On the other hand, Japanese whetstones are made from sedimentary rock, are softer and wear down much faster than the Novaculite stone. However, on the bright side, they cut better, so they'll sharpen quicker. These whetstones can only be used with water, which is why they're also known as Japanese water stones.

b) Synthetic Whetstones

Artificial/ synthetic whetstones offer a much better consistency than natural stone. This is because they're made using a bonded abrasive (aluminum oxide/silicon carbide) that's stuck together using a clay/glass/resin binding agent to become a block.

c) Diamond Plate Sharpening Stones

These are steel plates that are coated in small diamond pieces since diamond is literally the hardest mineral on Earth and comes in handy when sharpening items for sharp knives. These plates are durable but typically relatively pricier. Generally, diamond sharpening stones are not recommended for beginners and are often used to fix water stones that may have become uneven after some use.

Which is the best japanese sharpening stone?

1. Yoshihiro Professional Grade Toishi Japanese Whetstone Knife Sharpener Water Stones (SET)

Yoshihiro Professional Grade Toishi Japanese Whetstone Knife Sharpener Water Stones (SET)
  • Grade : Toishi Sharpening Whetstone Full Set /Type: Japanese Sushi Chef Tool
  • 2.9 inches in width that allows for a larger surface area to sharpen your knife more accurately.
  • The height (0.9”) has enough material to provide for years of use.
  • Size: 8″x2.9″x.9″ without base / Proudly made in Japan
  • Include #1000, #3000, #6000 Grit Whetstone + Stone Fixer + Nagura Conditioning Stone

If you're looking for a premium sharpening stone, that's also lightweight, here's a professional-grade stone by Yoshihiro. It has enough elasticity to help control the knife and the proper hardness that comes in handy while sharpening.

Additionally, Yoshihiro whetstones are relatively larger than the ordinary Japanese wet stones, making the sharpening much easier. It also comes with a high-quality construction that gives your knives an even sharpness for the most impressive sharpening process.

This is not a budget pick since the price is relatively on the high end. But, overall, it's one of the best Japanese whetstone knife sharpener sets. But unfortunately, it doesn't come with guidelines that come, but you can always find video tutorials.


  • Accurate and impressive sharpening
  • Larger than the ordinary Japanese whetstones
  • Gives your knife an even sharpness
  • Sturdy construction
  • Ensures your safety
  • Uses high-quality materials


  • Relatively pricy
  • Doesn't come with a proper instruction manual

2. KNIFEPLANET Knife Sharpening Stone Set

Premium Knife Sharpening Stone Set – 400/1000 and 3000/8000-Grit Professional, Safe Knife Sharpener Set – Whetstone Set Includes Flattening Stone, Bamboo Base, and 2 Nonslip Rubber Bases
  • Not Your “Average” Knife Sharpening Stone Set our 3000/8000 dual-grit wet stone kit has high-density single whetstones with different coarseness masterfully developed on both sides of the same water stone
  • Sharpen Like a Chef sharpening professional for the home cook, a pro chef, or whether your just enjoy occasionally cooking meals to your family, our high-density wet stones for sharpening knives provides you with all the right tools to achieve pro chef’s sharpening results
  • Premium Knife Sharpening Stone your knife sharpening kit comes with a flattening stone for keeping your whetstone always flat with a non-slip bamboo base
  • Quality & Versatility our sharpening waterstone 3000/8000 uses water for sharpening and are easily cleaned with water as well, so you avoid the oily mess of dealing with expensive sharpening/honing oils
  • Bonus Gift learn proper knife-sharpening techniques with a free gift! each sharpening whetstone set comes with a bonus link with instrumental articles and videos

KNIFEPLANET is a well-renown company for its integrity, reliability, and quality work, which is always reflected in its work ethic. This is a complete knife sharpening set that's impressively feature-rich. First off, the stones are made using alumina oxide that's famous for its strength.

Secondly, these stones are forged under 200 tons of pressure, use no glue in the process and are heated for 72 hours at a 1,300°C temperature for high durability and density. Finally, the stones in this set come with 4 sharpening grits: The 400/1,000 grit raises the burr and sharpens the blade's edge. The 3,000/8,000 grit stone is used to polish and perfect your blade.

KNIFEPLANET has also added 2 non-slip rubber bases and a handy bamboo stone holder. For safety, the rubber base helps minimize the risks that come with slippage while you sharpen your knives. You also get a flattening stone to repair and even out your stone, which may wear down over time. Each of these knife stone sets comes with a bonus link to the instructional articles and videos that'll help you master the art of knife sharpening.


  • Easy use
  • Rubber base that helps minimize slipperiness
  • Durable construction
  • Relatively affordable
  • Multiple grits to cater for multiple blades
  • Flatting stone to reshape the blades when damaged


  • Each grit will require a different sharpening angle
  • Narrow size

3. Knife Sharpening Stone Kit, KERYE Professional Japanese Whetstone Sharpener Stone Set

Knife Sharpening Stone Kit, KERYE Professional Japanese Whetstone Sharpener Stone Set, Premium 4 Side Grit 400/1000 3000/8000 Water Stone, Flattening Stone, Angle Guide, Leather Strop, Anti Cut Gloves
  • 【Super Bundle】Your complete knife sharpening kit comes with two Double Sided Japanese Grit Whetstone 400/1000 & 3000/8000 with beautiful Non Slip bamboo base for holding the waterstone securely during the sharpening process; angle guide holds the knife on the correct angle; leather strop to polish knife and removing burr, flattening stone used for leveling, a pair of cut resistant gloves for protecting your hands, an instruction manual for learning sharpening skills
  • 【Premium Japanese Quality】Quality is of utmost importance to KERYE. Not all sharpening stones are created equal. Behind the Sakai KERYE brand is 600 plus years of knife-making history by skilled craftsmen of Sakai City, Osaka. Originally famous for the production of Samurai swords, the makers in Sakai take pride in their work and never compromise on quality. We only source premium quality material for the manufacturing of our KERYE Whetstone which will provide superior sharpening performance
  • 【Razor Sharp Results】There is an old saying: A dull knife is more dangerous than a sharp knife. With finely polished razor-sharp edges using KERYE premium whetstone, your knives will need less force to get through, giving you more control, reducing stress, preventing injuries to your wrist and hand. With sharp knives, you can finely cut and properly chop veggies & meat allowing the cooking method to penetrate deeper, adding great texture, aroma and flavor to your tasty and appealing dishes
  • 【Safe & Easy to Use】A dedicated bamboo base, non-slip rubbers are attached to stabilize the whetstone firmly. A pair of cut-resistant gloves can protect your hand from cuts. With the angle guide, you can stabilize the correct angle of the knife when sharpening, and even beginners can easily sharpen the knife neatly. The user manual with pictures is simple and clear in order to help you to use. KERYE Whetstone can be easily cleaned with water, no need of expensive sharpening or honing oils
  • 【So Many Usage】KERYE professional knife sharpener stone is profoundly tough and durable. This whetstone set can sharp any blade such as home kitchen knife set, Pro Chef knife, Steak knife, Bbq knife, Sushi knife, Japanese knife, Santoku knife, Paring knife, Cleaver knife, Butcher knife, Fruit knife, Hunting knife, Pocket knife, Scissor, Chisel, and Blade. This whetstone sharpener set is also a great exquisite gift idea for your friends and family who loves cooking

This is another complete knife sharpening kit that comes with 2 double-sided Japanese grit whetstone, the 400/1000 and 3000/8000. The set also includes a beautiful non-slip bamboo base that you can use to hold the Waterstone securely while you sharpen. Additionally, you get a knife sharpening angle guide, a leather strop that you use to polish knives after you sharpen knives.

For your safety, it also includes a pair of cut-resistant gloves to protect your hands and a free sharpening stone guide that you can use to learn sharpening skills. Kerye is a professional knife sharpener stone that's tough and durable. It can be used on any blade including, the kitchen knife set, steak knife, sushi knife, butcher knife, chef knife, Santoku Knife, Japanese knife, Paring knife, steak knives, pocket knives, scissors, chisel, etc. It is an elegantly packaged knife sharpener, that makes an impressive Whetstone sharpener set that also makes an exquisite gift to anyone who loves cooking.

It is made safe and easy to use with the inclusion of the dedicated bamboo base and non-slip rubbers to help stabilize it firmly while in use. It also comes with a pair of cut-resistant gloves to protect your hand from cuts. Its sharpening angle guide also comes in handy to help you stabilize your sharpening at the correct angle.

This set is also suitable for beginners with a user manual that comes with pictures and simple and clear instructions which help you learn how to use it. The Kerye Whetstone can also be cleaned with water, which means that you won't have to use the expensive sharpening or honing oils.

Overall, this set is sure to give you razor-sharp knife for tasty and appealing dishes.


  • Complete knife sharpening kit
  • Comes with a leather strop
  • Comes with a pair of cut-resistant gloves to protect your hands
  • Includes a free sharpening stone guide
  • Non-slip bamboo base and non-slip rubbers for an extra firm grip
  • Manual guide to making it easy to use
  • Multiple-use to sharpen any blade


  • The blade may lose its sharpness within a short while

4. MITSUMOTO SAKARI Japanese Knife Sharpening Stone

MITSUMOTO SAKARI Japanese Knife Sharpening Stone, Professional Kitchen 1000/3000 Grit Knife Sharpener Stone, Anti-Slip Bamboo Seat Sharpener Whetstone
  • [Premium Japanese Sharpener] Professional sharpening stone made of durable white corundum (aluminum oxide). The straight base is made of natural bamboo wood with non-slip rubber strips. The oil stone only needs to be soaked in water for 5 minutes to sharpen (no need for expensive sharpening oil).
  • [Double-Sided Sharpening Stone] The sharpening whetstone kit comes with a double-sided (1000/3000 grit) premium sharpening stone that provides excellent sharpening performance. 1000 coarse grit is used for sharpening open-edged or repaired knives for duller knives. 3000 fine grit is used for grinding and polishing for normal sharpening.
  • [Non-Slip Bamboo Seat] Japanese sharpening stone is fixed in a non-slip bamboo base to ensure that the stone is fixed in one position while sharpening. The base contains a non-slip TPR rubber base to make your sharpening more stable; and allows you to maintain a 15°-20° angle to safely apply consistent pressure while sharpening.
  • [Multi-Application Whetstone] Durable and professional stone sharpening knife is a must-have tool for every kitchen. Sharpen a wide variety of utensils and knives; such as home kitchen knife sets, professional chef's knives, steak knives, fruit knives, hunting knives, scissors and blades. The elegantly packaged knife sharpener can be given as a gift to friends and family who love to cook.
  • [Product Commitment] ミツモトサカリ products have been strictly audited and certified. Unconditional replacement or refund policy for defects, risk-free trial. If you have any questions, please contact us, we will give you a satisfactory answer.

This is a premium double-sided sharpening whetstone kit (1000/3000 Grit) that gives you such an excellent performance. The 1000 coarse grit is used to sharpen open-edged or repair a dull knife The 3000 fine grit is used for grinding and polishing in normal sharpenings.

As a premium Japanese sharpener, it's also a great pick for professionals as a professional sharpening stone. Its impressively durable since its made from White Corundum (a.k.a. Aluminum Oxide). It also has a straight base that's made of natural bamboo wood with non-slip rubber strips.

It also allows you to maintain 15-20 angles while applying consistent pressure while sharpening. It's also great for multiple applications on a wide variety of utensils and blades.


  • Premium double-sided sharpening stone
  • 1000 coarse grit for open-edged or repair dull knives for a sharp blade
  • 3000 fine grit for grinding and polishing
  • Allows you to maintain 15-20 angles
  • Multiple application


  • Relatively pricey

5. HOSOM Whetstone Knife Sharpener Kit

HOSOM Whetstone Knife Sharpener Kit, 400/1000 3000/8000 Japanese Sharpening Stone, Wet Stone for Sharpening Kitchen Knives with Non-slip Bamboo Base, Flatting Stone and Angle Guide
  • 【Complete set】 Include whetstones for sharpening and polishing, Flattening Stone for daily maintenance, and the angle guide and E-instruction for novices to get the correct angle.
  • 【Innovative Bamboo Base】Ergonomic 10° angled base can save you a lot of effort while sharpening. No more awkward wrist angles while sharpening. Triangle frame design is more stable.
  • 【Improved Flattening Stone:】The enlarged flattening stones can level whetstone more effectively. The precise cut grooves can reduce the unnecessary wastage on whetstone during leveling. Prolong the lifetime of the whetstone.
  • 【Safety Always Comes First】 Comes with 2 nonslip rubber bases to hold the stone inside a Non-Slip bamboo base. Ensuring the stone is fixed in one place while sharpening. Minimize the risk of hazardous slips.
  • 【Multipurpose Use】Designed for most sharpening jobs, such as kitchen knives, chisels, plane irons, razors, scissors, clipper blades, and even axes.

Comes with 2 non-slip rubber bases and an innovative bamboo base that not only makes it safe for use but gives it an ergonomic 10 angled base that comes in handy while sharpening. It also comes as a complete set.

It's also a great pick for a multipurpose sharpening Waterstone kit that's designed to make your tools razor-sharp and accommodate most items that you'll need to sharpen, especially items that include; kitchen knives, paring knife, chef knife, hunting knives, chisels, Japanese knives, cleaver knife, razor sharp blades, scissors, plane irons, clippers blades, and even an ax.

It comes with an improved flattening stone that's enlarged for more efficiency.


  • Improved flattening stone that's enlarged
  • Multipurpose use
  • 2 non-slip rubber bases and an innovative bamboo base for safety, and an ergonomic 10 angled base


  • Sharpness doesn't last as much

What to Consider When Shopping for the Best Japanese Sharpening Stones?

A) What Size?

Different whetstones come in different sizes available. Small knives will need a smaller whetstone, while large knives or multiple knife sizes will need a larger whetstone for easier work. Keep in mind that a larger stone will cost you more than the smaller one.

B) What Grade?

These Japanese whetstones come in 3 grades and different grits, which include:

i) Rough

These come with the largest grit particles that are between 120- 140.

ii) Medium

Medium grit stone comes with grit between 700-3,000.

iii) Smooth

Smooth water stones come with a grade between 3,000-10,000

C) What Use?

How you use these stones for sharpening knives determine what stone you choose. For instance, a professional stone sharpening knife will be different from that of a hunting knife or that of a steak knife.

i) Chips and Dull Blades

For a dull knife with chips or blades that have become extremely dull, you use a rough stone.

ii) Regular Sharpening

For regular sharpening, you can use a stone that's between 700-3,000 grit.

iii) Buffing and Polishing

Since some rough Japanese sharpening stones can create some scratches on the surface of your blade, to get rid of them, use a smoother stone to buff and polish your blade.

Frequently Asked Questions On the Best Japanese Sharpening Stone

1. How to clean your Japanese water stone?

Learning how to clean your water stone is as important as learning how to use it. First, wash it and wipe it using a soft, clean cloth to remove the accumulated debris for light cleaning. Then allow it to air dry completely before storing it to prevent mold growth.

2. How to keep your knives sharp?

a) Avoid washing it in the dishwasher

b) Don't store it with other kitchen utensils and tools

c) Always use a cutting board while cutting


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