Misen serrated bread knife with white handle and stainless steel blade

8" Serrated Knife (ACUTO440) - White

8" / White
$109.00
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Misen serrated bread knife with white handle and stainless steel blade
  • Misen serrated bread knife with white handle and stainless steel blade
  • 8" Serrated Knife (ACUTO440) - White
  • Misen serrated bread knife slicing dark sourdough loaf on wooden cutting board
  • Misen serrated bread knife with white handle and stainless steel blade
  • Misen steak knife close-up showing serrated blade and white handle
  • Hands cutting delicata squash on wooden cutting board with acorn squash nearby
  • Misen serrated bread knife with white handle and stainless steel blade
  • 8" Serrated Knife (ACUTO440) - White
  • Misen serrated bread knife slicing dark sourdough loaf on wooden cutting board
  • Misen serrated bread knife with white handle and stainless steel blade
  • Misen steak knife close-up showing serrated blade and white handle
  • Hands cutting delicata squash on wooden cutting board with acorn squash nearby
8" Serrated Knife (ACUTO440) - White

84 Reviews

8" Serrated Knife (ACUTO440) - White

8" White Serrated Knife in ACUTO440 Steel

$109.00

Our rust-proof serrated knife, made with next-generation ACUTO440 steel. Wave-shaped serrations glide through crusty, soft, and/or squishy foods without tearing.

Size: 8"
Color: White
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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 steel for pro-level sharpness and edge retention
  • Lab-tested rust resistance proven to withstand 50 days submerged in water and up to 100 dishwasher cycles.
  • Wave-style serrations for smooth slicing with less tearing
  • Ergonomic rounded spine for a comfortable pinch grip
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Rust-Proof

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ACUTO440 Steel

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Serrated Blade
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: 8.1 in. / 208 mm
Total Length: 13.3 in. / 340 mm
Handle Thickness: 18 mm
Blade Height: 35 mm
Weight: 0.4 lb / 215 g
Steel: AICHI ACUTO 440 (Japan)
HRC: 58±2
Grind & Edge: Single blade, 25 wide-set serrations
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.

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Why It’s Great

Serrations That Stay Sharp

Most serrated knives dull within a year. ACUTO440 steel holds its edge longer, so you can skip the sawing and slice cleanly every time.

Your More-Than-Bread Knife

Glides through crusty sourdough but also slices a ripe tomato and a wedge of pie. The serrated edge handles anything with a surface that resists a straight blade.

Pick Your Size

The 5" is nimble for sandwiches, bagels, and small fruit. The 8" handles full loaves and layer cakes. Same steel, same edge, scaled to what you cook.

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

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Based on 84 reviews
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84 reviews
  • Audra A. B.
    Verified Buyer
    Reviewing
    8" Serrated Knife (ACUTO440) - Black
    I recommend this product
    Rated 5 out of 5 stars
    3 minutes ago
    Percusion

    This is a precision knife and a delight to own. Smooth clean cuts. I love it.

    Was this helpful?
  • Robert P.
    Verified Buyer
    Reviewing
    5" Serrated Knife (ACUTO440) - Blue
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    5” aerated knife has become our most used knife

    It’s just the right size. Not too big and not too small.

    Was this helpful?
  • Susan W.
    Flag of United States
    Verified Buyer
    Reviewing
    8" Serrated Knife (ACUTO440) - Blue
    I recommend this product
    Product Standouts sharp, good balance, comfortable handle
    Rated 5 out of 5 stars
    3 months ago
    Most used knife

    This knife is almost out on our counter because we use it every day to slice breads and bagels. It is angled perfectly to obtain thin or thick slices. It has maintained its sharpness, and I have purchased several as gifts.

    Was this helpful?
  • Michael B.
    Verified Buyer
    Reviewing
    Personalized 5" Serrated Knife (AUS-8) - Final Sale
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Wow that's sharp

    I love Misen. I have a couple pans and now purchased a third knife. Did I need it? No. Was the price right and did I trust the quality? Yes! The personalization option, for free, sealed it for me.

    When I tried it the first time it just confirmed it was a great decision. Super sharp, the right size and I absolutely love it.

    Was this helpful?
  • Eric W.
    Flag of United States
    Verified Buyer
    Reviewing
    8" Serrated Knife (ACUTO440) - Blue
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    Sharp and cuts great

    We have tried it on sourdough bread and typical knives made it difficult. This knife was amazing

    Was this helpful?
Show More

8" White Serrated Knife in ACUTO440 Steel

Misen’s 8" Serrated Knife (ACUTO440) in White is built for clean slicing through foods that usually get crushed or torn, think crusty loaves, ripe tomatoes, and other soft or squishy ingredients. The wave-shaped serrations are designed to glide with less tearing, and the next-generation AICHI ACUTO440 steel is lab-tested for rust resistance, including extended water exposure and repeated dishwasher cycles.

If you’re comparing styles, this is part of Misen’s wider lineup of serrated knives, which are especially handy when a straight-edge blade tends to snag on crusts and skins. For building out a core kit beyond serrated blades, you can also explore kitchen knives to see other shapes meant for everyday prep tasks.

Comfort matters on a serrated knife because you often use longer strokes. This knife features an ergonomic rounded spine that supports a comfortable pinch grip, which can help when you’re slicing a full loaf or working through lots of produce. The 8" blade length is a practical all-around size for bread and sandwich builds, while still feeling manageable for smaller items.

Care is straightforward: Misen recommends hand washing and drying immediately after use. Plan to sharpen about every 4 to 6 months, depending on how often you reach for it. If you want Misen’s detailed guidance for ACUTO steel specifically, the ACUTO knives care page covers best practices and what to watch for over time.

One helpful note from Misen, high-carbon knives can show discoloration after exposure to acidic foods and or salt. The brand calls this cosmetic and different from rust, which they say is extremely rare. For peace of mind, this knife comes with a 60-day test drive, a lifetime warranty against defects, and free returns.

Explore Single Knives for more verified options related to this product.

Frequently Asked Questions About Serrated Knives

What foods is this 8" serrated knife best for?

It’s designed for crusty, soft, and squishy foods where a smooth blade can crush or tear. Misen specifically calls out bread and tomatoes, and the wave-shaped serrations are meant to glide for cleaner slices with less tearing.

Is this serrated knife rust-proof?

Misen describes it as rust-proof and states it is lab-tested for rust resistance. Their testing notes include withstanding extended time submerged in water and up to many dishwasher cycles, which is intended to support real-world kitchen use.

Can I put the knife in the dishwasher?

Misen’s lab testing includes dishwasher cycles for rust resistance, but their recommended Use & Care is to hand wash and dry immediately after use. Following the care guidance is the best way to keep the knife performing and looking its best.

How often should I sharpen this knife?

Misen recommends sharpening every 4 to 6 months. The right schedule depends on how often you use the knife and what you cut, but this guideline is a solid starting point for routine maintenance.

Why might the blade discolor after cutting certain foods?

Misen notes that high-carbon knives may show discoloration after exposure to acidic foods and or salt. They describe this as purely cosmetic and different from rust. Hand washing and drying immediately after use can help minimize this effect.