Misen nakiri knife with blue handle and stainless steel blade

5.5" Nakiri Knife (ACUTO440) - Blue

Blue
$80.84 $94.00
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Misen nakiri knife with blue handle and stainless steel blade
  • Misen nakiri knife with blue handle and stainless steel blade
  • Misen chef's knife chopping colorful rainbow chard stems on wooden cutting board
  • Misen chef's knife slicing radicchio on wooden cutting board
  • Misen nakiri knife with blue handle and stainless steel blade
  • Misen santoku knife blade close-up with blue handle
  • Misen nakiri knife with blue handle and stainless steel blade
  • Misen chef's knife chopping colorful rainbow chard stems on wooden cutting board
  • Misen chef's knife slicing radicchio on wooden cutting board
  • Misen nakiri knife with blue handle and stainless steel blade
  • Misen santoku knife blade close-up with blue handle
5.5" Nakiri Knife (ACUTO440) - Blue
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4 Reviews

5.5" Nakiri Knife (ACUTO440) - Blue

Blue Nakiri Knife

$80.84 $94.00
4th of July Sale - 14%

A knife for all the veg-heads, with a straight blade for clean, even chops, plus a wide surface for scooping all that goodness into the pot.

Color: Blue
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60-Day Test Drive
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Lifetime Warranty Against Defects
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Free Returns
Features
  • AICHI ACUTO440 Japanese steel for exceptional sharpness and edge retention
  • Lab-tested rust resistance proven to withstand 50 days submerged in water and up to 100 dishwasher cycles.
  • Straight-edge blade for full board contact and clean, consistent chopping
  • Gently curved tip for optional rock-chopping
  • Wide blade surface for easy scooping and transferring ingredients
Rust-proof feature icon with spark symbols

Rust-Proof
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ACUTO440 Steel
Up and down chopping motion technique icon

Up & Down Chop
Use & Care
  • Hand wash
  • Dry immediately after use
  • Sharpen every 4–6 months
  • Heads up: High-carbon knives may show discoloration after exposure to acidic foods and/or salt. This is purely cosmetic and different from rust, which is extremely rare.
  • Visit our Help Hub for more on how to use and care for this knife.

Let Us Handle the Sharpening
Specifications

Blade Length: 5.5 in. / 140 mm
Total Length: 10.43 in. / 265 mm
Handle Thickness: 16 mm
Blade Height: 50 mm
Weight: 0.34 lb / 155 g
Steel: AICHI ACUTO 440 (Japan)
HRC: 58±2
Grind & Edge: 50/50 Symmetrical, 14° per side
Handle Material: Polyoxymethylene
Country of Production: PRC
Warranty

All Misen products come with a lifetime warranty against defects. Misen will replace any defective products. Learn more about our warranty policy here and what's covered.

Pair it with

Basically a Navy Seal

Rust-proof after 100 dishwasher cycles.

Because it’s got more chromium than standard high-carbon stainless, ACUTO440's rust resistance is a lab result, not a marketing claim.
Sliced salami and mozzarella sheet pan pizza on parchment paper being cut with a Misen chef's knife
Misen bread knife slicing dark sourdough loaf on wooden cutting board

Works Harder, Stays Sharper

Holds a razor edge through heavy prep.

At 58±2 HRC, ACUTO440 has incredible edge retention without brittleness. That means you can put off sharpening it for longer.

Questions?

What are Misen’s ACUTO440 Knives made of?

Our ACUTO440 Knives are made with AICHI ACUTO440, an exceptionally corrosion-resistant Japanese high-carbon stainless steel. AICHI ACUTO440 is rust-proof, incredibly durable, and has excellent edge retention. What that means for you: less time cleaning and sharpening, more cooking.
What’s the difference between Misen’s ACUTO440 Knives and classic knives?

All of our knives are made from high-carbon stainless steel, which is what gives them their razor-sharpness and excellent edge retention. However, our ACUTO440 Knives have a much higher chromium content (about 18%), which makes them significantly more corrosion (aka rust) resistant.

Our ACUTO440 Knives also feature a rounded spine and heel (the back of the knife where the blade meets the bolster), creating a more comfortable grip over long prep sessions.
How are Misen’s ACUTO440 Knives different from other high-carbon knives?

We wanted our ACUTO440 Knives to be high-performance tools that you could still leave in the sink overnight if you needed to. That’s why our ACUTO440 Knives are made with AICHI ACUTO440, a Japanese high-carbon stainless steel that is more durable and easier to care for than other high-carbon knives, which are prone to rusting and/or chipping without proper care.
What do you mean by rust-proof?

Our ACUTO440 Knives are made with AICHI ACUTO440 steel, an exceptionally corrosion-resistant Japanese high-carbon stainless steel. Our knives have been lab-certified to withstand up to 100 dishwasher cycles, as well as 50 days of being submerged in water, without showing any signs of rust.
Can I put Misen’s ACUTO440 Knives in the dishwasher?

While our ACUTO440 Knives have been lab-certified to withstand up to 100 dishwasher cycles without showing any signs of rust, we generally recommend hand washing all of your Misen knives. Because our knives are extremely sharp, when they get jostled around in the dishwasher, the blade can cut through the soft materials that make up your dishwasher racks. Dishwashing can also damage your knives if the blade edge bangs against hard objects like flatware or pots and pans during the washing cycle.
How often should I sharpen my knives?

Whenever you start to notice your knife is slicing and dicing a little less crisply than usual, it’s time to sharpen. Although our ACUTO440 Knives can go long periods between sharpenings, we generally recommend getting them sharpened about twice a year for best performance. We also recommend regularly using a honing rod between sharpenings to keep your knife edge in good shape.
My blade has discoloration and/or staining. What is this?

While our ACUTO440 Knives are rust-proof, all high-carbon knives can experience some discoloration and/or staining with prolonged exposure to acidic foods and/or salt. This is purely cosmetic and is not the same as rust.

Customer Reviews

5.0
Rated 5.0 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 4 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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4 reviews
  • Pete C.
    Flag of United States
    Verified Buyer
    Reviewing
    5.5" Nakiri Knife (ACUTO440) - Blue
    I recommend this product
    Product Standouts good balance, sleek design, comfortable handle, nice weight, sharp
    Rated 5 out of 5 stars
    1 month ago
    Beautiful

    This is my second Misen knife, I've had the Utility Knife for 3 years and it's been the only thing I've used, and when I decided I wanted something a bit like a Chinese chef's knife or a santoku or nakiri for vegetable chopping, I saw that Misen had just come out with their spin on a nakiri, and its just as lovely as my Utility Knife.

    Just feels so good and nimble in the hand, so perfectly balanced and smooth, and I love the way they've designed this blade shape to be a bit closer to a santoku or cleaver than a traditional nakiri, sleek rounded contour. Beautiful knife

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  • Jeremiah A.
    Flag of United States
    Verified Buyer
    Reviewing
    5.5" Nakiri Knife (ACUTO440) - Blue
    I recommend this product
    Product Standouts sharp, easy-to-use
    Rated 5 out of 5 stars
    1 month ago
    Makes chopping veggies a breeze!

    Already had a chef’s knife from Misen, which I love. When I saw this announced I was quick to preorder and was not disappointed. The knife feels great in hand, looks stylish, and chops veggies with ease.

    Was this helpful?
  • Cheryl H.
    Flag of United States
    Verified Buyer
    Reviewing
    5.5" Nakiri Knife (ACUTO440) - Blue
    I recommend this product
    Product Standouts good balance, comfortable handle, sharp, nice weight
    Rated 5 out of 5 stars
    2 months ago
    Well balanced and sharp knife

    Knife works very well, it's a big blade but is very easy to use with small hands. cuts even tough squash easily.

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  • Carol T.
    Flag of United States
    Verified Buyer
    Reviewing
    5.5" Nakiri Knife (ACUTO440) - Blue
    I recommend this product
    Product Standouts sharp, easy-to-use, good balance, sleek design, comfortable handle
    Rated 5 out of 5 stars
    2 months ago
    My Favorite!

    This is my fourth Misen knife purchase, all but one are the 5.5 versions, as I have small hands and prefer the agility afforded by a smaller knife. The Nakiri is hands down my favorite! I love the blade shape, it's thinness, the balance. I find it not only cuts vegetables with ease, but also delicate tomatoes, and is great for thin slicing cheese. It's the one I reach for more often than the others, as it has proven to be very versatile.

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Why the Blue Nakiri Knife Excels at Vegetable Prep

The Misen 5.5" Nakiri Knife is purpose-built for vegetable prep. Its straight edge maintains full contact with the cutting board on every stroke, so you get clean, consistent cuts through everything from cabbage to carrots — no rocking required. The wide blade doubles as a bench scraper, making it easy to scoop prepped ingredients directly into the pan or pot.

Made from AICHI ACUTO440 Japanese high-carbon stainless steel, this nakiri holds a razor edge at 58±2 HRC while offering far greater rust resistance than standard high-carbon knives — lab-certified to survive 50 days submerged in water and 100 dishwasher cycles. The Polyoxymethylene handle is comfortable through long prep sessions, and the 50/50 symmetrical grind at 14° per side suits both right- and left-handed cooks equally.

If you're building out a full set in the matching Blue colorway, the 5-Piece ACUTO440 Knife Set in Blue pairs this nakiri with everyday essentials. For lighter detail work alongside your nakiri, consider adding the 3.5" Paring Knife in Blue to your rotation.