If you've ever abandoned a recipe mid-prep because your knife wouldn't cut through a tomato, you know how a dull blade kills momentum. The Ninja K32017 Foodi NeverDull Premium Knife System is built around one promise: never worry about sharpening again. A built-in honing system lives inside the knife block itself — swipe, done. But does a convenient sharpener compensate for the rest of the package? We spent eight weeks finding out.
Quick verdict
The NeverDull system actually works — swiping knives through the block restores a serviceable edge in under 10 seconds. The 17-piece set covers every kitchen task, and the price under $120 puts it within reach for home cooks upgrading from a dull starter set. The trade-off is in steel quality and edge retention compared to forged competitors at double the price. If sharpening discipline has been your sticking point, this solves it affordably.
Who is this for?
The Ninja K32017 targets home cooks who know they should sharpen their knives but don't. Maybe you've bought a whetstone that sits in a drawer. Maybe you grabbed a cheap set five years ago and the blades have never been touched. If that sounds familiar, the NeverDull block removes the friction — just store your knives and swipe once a week. It's also a strong entry point for anyone building a first serious kitchen: you get eight steak knives, a chef's knife, a santoku, a bread knife, and specialty blades all in one box.
If you already own a quality forged set and keep it sharp with a whetstone or a Chef'sChoice electric sharpener, the K32017 won't upgrade your kitchen. But for everyone else, the convenience-to-cost ratio is hard to beat.
Key features
Built-in NeverDull Sharpening System
The block has a lever on the side. Pull it, insert the blade, and pull the knife through. A dynamic stone wheel engages at the optimal angle and applies consistent pressure. Ninja claims this maintains razor-sharp edges for over 10 years. In testing, a dulled 8-inch chef knife regained useful sharpness in three slow passes. It won't restore a severely damaged edge — a chip or rolled tip needs a proper stone — but for weekly maintenance, it works exactly as advertised.
German Stainless Steel Construction
Blades are forged from German stainless steel, described by Ninja as rust-resistant and strong enough for all kitchen tasks. The steel is softer than Japanese VG-10 or German X50CrMoV15 used in premium sets, which means it sharpens more easily but holds an edge for a shorter duration. For home cooks who sharpen weekly via the built-in system, this is a reasonable trade-off. Expect to swipe through the block every 5–7 days of regular use to maintain a clean cutting feel.
Ergonomic Handle with Full Tang
The handles are contoured and reasonably balanced. The full tang construction gives the knives a professional heft — the 8-inch chef knife sits at around 7.5 oz, lighter than the Wüsthof Classic but heavier than most budget stamped sets. The handle material is described as durable and wear-resistant; after eight weeks there was no visible degradation. Grip security is solid even with wet hands, though the handle lacks a finger guard, so aggressive chopping technique requires a deliberate grip.
17-Piece Complete Set
You get: 8" chef knife, 8" bread knife, 7" santoku, 8" slicing knife, 6" boning knife, 5" utility knife, 3.5" paring knife, 8 steak knives, shears, and the knife block with sharpener. That covers every task in a home kitchen. The steak knives are a genuine highlight — they slice through a medium-rare ribeye without tearing, a real upgrade over the serrated stainless plates most sets include.
Real-world performance
The 8-inch chef knife did the heavy lifting across eight weeks of testing: carrots, onions, butternut squash, raw chicken, and herbs. It glides through soft tomatoes cleanly after a quick swipe through the sharpener block. The santoku handled shallots and ginger with precision; the paring knife stripped citrus and deveined shrimp cleanly. The boning knife flexed adequately around chicken joints but isn't designed for heavy bone work — a cleaver beats it for that task.
The bread knife sliced a rustic sourdough without crumbling. The slicing knife handled a brisket briskly and evenly. All blades showed minor edge wear after two weeks of daily use — the NeverDull block brought them back each time. After eight weeks, no rust appeared on any blade despite a few instances of leaving them in the sink overnight. The shears are sharp enough to break down a whole chicken, though the plastic component over the blade spine is a weaker point than all-metal shears.
Pros and cons
The structured pros and cons are below. The NeverDull built-in sharpener is the headline feature — it genuinely solves the sharpening problem for home cooks. The 17-piece count and included steak knives represent strong value. The German stainless blades are easy to sharpen but won't hold a hair-popping edge for weeks like a Miyabi or Wüsthof. The block takes up meaningful counter space, and the handle comfort drops off slightly during sessions longer than 20 minutes.
Verdict & price check
At under $120 for 17 pieces including steak knives and a functional built-in sharpener, the Ninja K32017 Foodi NeverDull solves two problems at once: it gives you a usable knife set and it removes the sharpening friction that causes most home cooks to live with dull blades. If you want better steel and plan to maintain edges manually, spend more on a forged set. But for most home kitchens, this is the most practical knife purchase you can make. Check the latest price for the Ninja Foodi NeverDull 17-piece set on Amazon.