5" Serrated Knife (ACUTO440) - Red

5" / Red

$79.20 $99.00

620 Reviews

5" Serrated Knife (ACUTO440) - Red

$79.20 $99.00

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: 5" 5" 8"

Color: Red

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Lifetime Warranty Against Defects

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Free Returns

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

Rust-Proof

ACUTO440 Steel

Serrated Blade

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

Mail-In Knife Sharpening (on any knife)
Free shipping, starting at $11 per knife.

Blade Length: 5 in. / 127 mm
Total Length: 10 in. / 253 mm
Handle Thickness: 28 mm
Blade Height: 17 mm
Weight: 4.8 oz / 136 g
Steel: AICHI ACUTO 440 (Japan)
HRC: 58±2
Grind & Edge: Single blade, 18 wide-set serrations
Handle Material: Polyoxymethylene
Country of Production: PRC

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.

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?

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.

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.

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.

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.

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.

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.

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

4.9

Rated 4.9 out of 5 stars

Based on 620 reviews

Total 5 star reviews: 584 Total 4 star reviews: 31 Total 3 star reviews: 5 Total 2 star reviews: 0 Total 1 star reviews: 0

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Eric W.
Verified Buyer
Reviewing
8 inch Serrated Knife - AUS-8 - Final Sale
I recommend this product
Rated 5 out of 5 stars
5 days 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?
Sara F.
Verified Buyer
Reviewing
8 inch Serrated Knife - AUS-8 - Final Sale
I recommend this product
Product Standouts sharp, easy-to-use, good balance, premium materials, nice weight
Rated 5 out of 5 stars
5 days ago
Favorite Bread Knife!
This particular version of Misen Bread knife was given as a gift. I have loved my knife for YEARS due to the weight, efficiency, ease and perfect serration.
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Dale B.
Verified Buyer
Reviewing
10 inch Serrated Knife - AUS-8 - Final Sale
I recommend this product
Product Standouts sharp, easy-to-use, good balance, comfortable handle, well-priced
Rated 5 out of 5 stars
6 days ago
So sharp
This serrated knife does a great job of slicing my homemade sourdough bread. I goes through the crusty outside and make quick work of the soft inside. It beats all my other knifes. This was a great purchase.
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Jonathan C.
Verified Buyer
Reviewing
Serrated Knife - ACUTO440 - New
I recommend this product
Product Standouts good balance, sharp, well-priced, nice weight
Rated 5 out of 5 stars
2 weeks ago
Great feel in the hand
Well priced, high quality, serrated knife knife that is well balanced and sharp. Good buy!
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Alex C.
Verified Buyer
Reviewing
8 inch Serrated Knife - AUS-8 - Final Sale
I recommend this product
Product Standouts sharp, good balance, nice weight
Rated 5 out of 5 stars
3 weeks ago
8 in serrated knife
Just the right length for most bread. All bread feel like butter!
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The Misen 5" Serrated Knife is built around next-generation ACUTO440 steel, a rust-proof alloy that holds an edge through repeated use on tough crusts and delicate skins alike. Its wave-shaped serrations are designed to glide cleanly through crusty bread, ripe tomatoes, and soft pastries without tearing or compressing — the kind of everyday cutting tasks where a straight-edged knife often struggles. At 5", the blade is nimble enough for smaller loaves and precision slicing without the bulk of a full-sized bread knife.

ACUTO440 steel also makes this knife a strong companion to other knives in the same line. If you regularly prep produce or proteins, the 5.5" Utility Knife in ACUTO440 shares the same rust-resistant steel and pairs naturally with this serrated blade. For those who want a serrated option in a different finish, the 5" Serrated Knife in Black ACUTO440 offers the same performance in a more understated look. All Misen knives come with a lifetime warranty against defects, so this is a tool built to last in a working kitchen.