Misen paring knife with blue handle and stainless steel blade

3.5" Paring Knife (ACUTO440) - Blue

Blue
$59.00
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Misen paring knife with blue handle and stainless steel blade
  • Misen paring knife with blue handle and stainless steel blade
  • 3.5" Paring Knife (ACUTO440) - Blue
  • Misen paring knife with blue handle and stainless steel blade
  • Misen paring knife with blue handle and stainless steel blade
  • Hands peeling an orange with a paring knife on a wooden cutting board with lemon peels
  • Hands slicing fresh strawberries over a yogurt granola bowl
  • Misen paring knife with blue handle and stainless steel blade
  • 3.5" Paring Knife (ACUTO440) - Blue
  • Misen paring knife with blue handle and stainless steel blade
  • Misen paring knife with blue handle and stainless steel blade
  • Hands peeling an orange with a paring knife on a wooden cutting board with lemon peels
  • Hands slicing fresh strawberries over a yogurt granola bowl
3.5" Paring Knife (ACUTO440) - Blue

18 Reviews

3.5" Paring Knife (ACUTO440) - Blue

3.5" Blue ACUTO440 Paring Knife

$59.00

Our smallest prep knife for peeling, trimming, and precision cuts. Perfect for handheld tasks like hulling strawberries or slicing a peach.

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, edge retention, and corrosion resistance
  • Lab-tested rust resistance proven to withstand 50 days submerged in water and up to 100 dishwasher cycles.
  • 3.5” blade for precision prep and handheld tasks
  • Ergonomic rounded spine and bolster for a more comfortable pinch grip
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Rust-Proof

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ACUTO440 Steel

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All Chop Styles
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: 3.3 in. / 85 mm
Total Length: 7.6 in. / 195 mm
Weight: 0.18 lb / 84 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

Why It’s Great

The Above-the-Board Knife

Hulling strawberries, slicing a peach, coring an apple: this is the work our paring knife was born to do, and it’s very good at it.

Precision Is the Point

Every design decision, from the blade length to the bolster, is about giving you control for the close, careful in-hand cuts that paring work requires.

The Spine and Bolster Make It Easy

Rounded and ergonomic, they reduce pinch-grip finger pressure so you’ll stay comfy over long prep sessions.

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 18 reviews
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18 reviews
  • William D. M. J.
    Verified Buyer
    Reviewing
    3.5" Paring Knife (ACUTO440) - Blue
    I recommend this product
    Rated 5 out of 5 stars
    3 minutes ago
    Thoughts

    Love it

    Was this helpful?
  • Camille K.
    Verified Buyer
    Reviewing
    3.5" Paring Knife (ACUTO440) - Blue
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Best knives on the market

    Amazing quality knives. Look beautiful in my kitchen and such a pleasure to use. I'm a big fan of this brand - will be purchasing more.

    Was this helpful?
  • Georganna A.
    Flag of United States
    Verified Buyer
    Reviewing
    3.5" Paring Knife (ACUTO440) - Blue
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Perfect

    Just what I needed: sharp, perfect size, easy to use. Perfect for my everyday cooking tasks.

    Was this helpful?
  • Alice N.
    Verified Buyer
    Reviewing
    Personalized 3.5" Paring Knife (AUS-10) - Final Sale
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    3.5 Paring Knife

    I really liked these! Having the names put on them made them extra nice! My Grandson just got an apartment and also loves to cook. I thought I would get him quality utensils.

    Was this helpful?
  • Cheryl C.
    Verified Buyer
    Reviewing
    Personalized 3.5" Paring Knife (AUS-10) - Final Sale
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    Beautiful and functional

    Love this knife. It's my third. Works well stays sharp longer.

    Was this helpful?
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3.5" Blue ACUTO440 Paring Knife

The 3.5" Paring Knife (ACUTO440) is Misen’s smallest prep knife for peeling, trimming, and precision cuts, especially when you want control in the air rather than on the board (think hulling strawberries or slicing a peach). Both color options share the same compact blade and ACUTO440 steel, so your decision mostly comes down to the look you want in your kitchen.

In day-to-day cooking, a paring knife earns its keep when a larger knife feels oversized. This 3.5" blade is built for handheld prep like peeling fruit, trimming small veg, and making careful, precise cuts where fingertip control matters. Because it is lightweight, it is easy to steer through quick detail work without over-committing your wrist, and it is a natural companion to a larger knife rather than a replacement.

The ACUTO440 steel is designed for exceptional sharpness, edge retention, and corrosion resistance. Misen also calls out lab-tested rust resistance that held up through extended water submersion and repeated dishwasher cycles. That said, the recommended routine is still simple and conservative: hand wash, dry immediately after use, and plan to sharpen every 4 to 6 months to keep the edge performing the way it should. If you want the brand’s guidance in one place, the ACUTO knives care page expands on best practices.

Comfort is part of precision. This knife has an ergonomic rounded spine and bolster that supports a comfortable pinch grip, which can help when you are doing repetitive tasks like trimming and peeling. The edge is listed as a 50/50 symmetrical grind, a familiar feel for many home cooks. If you are building out your lineup beyond a paring knife, browsing Single Knives makes it easier to choose the specific blade types you will actually reach for.

Choosing between Blue and Black is primarily an aesthetic call, since the blade steel and use case are the same. If you want a coordinated set, you can also compare shapes and sizes across the broader kitchen knives assortment. Whichever color you pick, remember the note in the care instructions: high-carbon knives can show cosmetic discoloration after exposure to acidic foods or salt, and that is different from rust (which Misen describes as extremely rare for this steel).

Frequently Asked Questions About ACUTO440 Paring Knives

What kitchen tasks is this 3.5" paring knife best for?

It is designed for peeling, trimming, and precision cuts, especially handheld tasks where a larger knife can feel clumsy. The product description specifically calls out hulling strawberries and slicing a peach as great examples of the kind of detailed prep this knife is meant to handle.

What is ACUTO440 steel, and why does it matter?

The blade uses AICHI ACUTO440 Japanese steel, chosen for exceptional sharpness, edge retention, and corrosion resistance. Misen also notes lab-tested rust resistance, including performance after long water exposure and repeated dishwasher cycles, which speaks to durability in real kitchens.

How should I wash and maintain the edge?

Misen recommends hand washing and drying immediately after use. For keeping it sharp over time, the guidance is to sharpen every 4 to 6 months. Following those basics helps preserve the knife’s edge retention and supports consistent precision during small prep work.

Is discoloration the same as rust on this knife?

No. The care notes explain that high-carbon knives may show discoloration after exposure to acidic foods or salt, and that this is purely cosmetic. Rust is described as extremely rare for this steel, which is also positioned as corrosion resistant.