10 Best Self Sharpening Knives 2025 in the United States

The Select by Calphalon™ Self-Sharpening Knife Set with Block features SharpIN Technology, which automatically sharpens straight-edge knives every time they are removed from the block. This ensures the knives remain sharp without needing manual sharpening. The knife blades are made from high-carbon, no-stain steel, providing strength and durability. The handles have an ergonomic design for a comfortable grip and are labeled for easy identification in the dark wood self-sharpening block.

The set includes a variety of knives, such as an 8-inch Chef’s Knife, Bread Knife, Santoku Knife, and more, along with Kitchen Shears and 8 Steak Knives. While the set is stylish and the self-sharpening feature is convenient, it is worth noting that the knives are not dishwasher safe, which may require extra care in cleaning. Additionally, the set has a full-tang design, which contributes to the balance and strength of the knives.

Weighing 9.11 pounds, it is relatively lightweight, making it easy to handle. The high-carbon steel may require maintenance to prevent staining, and the block's size might be an issue for kitchens with limited counter space.

The Calphalon Classic 12-piece knife block set offers a convenient self-sharpening feature through its SharpIN technology, which uses built-in ceramic sharpeners to keep blades sharp with every use. The blades are made from high carbon alloy steel, providing durability and resistance to staining, with steak knives crafted from Asian steel for added specialty. The knives have serrated edges, making them effective for cutting through tougher foods. The handles are ceramic and triple-riveted, designed for a secure and comfortable grip, while the bolster and full tang construction help balance the knives well and add strength. The block includes labeled handles, which makes it easy to identify each knife quickly.

Weighing nearly 7 pounds, the set is on the heavier side, which may feel sturdy but could be less convenient to move around. The knives are not dishwasher safe, so hand washing is recommended to maintain their quality. This set suits home cooks seeking a reliable, low-maintenance knife collection with a traditional style and the practical perk of self-sharpening. However, its serrated blades may not suit those who prefer straight edges for precise slicing, and the ceramic handles might feel less warm compared to wood or softer materials.

The Calphalon Classic Self-Sharpening Knife Block Set offers a practical and convenient solution for those who want to keep their knives sharp with minimal effort. It features a built-in ceramic sharpening system in the knife block, which sharpens the blades automatically each time you use and replace the knives—great for everyday use without needing separate sharpening tools. The knives are forged from high-carbon no-stain steel, giving them good durability and resistance to rust, which is important for kitchen knives. The set includes a range of useful blade sizes (8-inch chef's knife, 6-inch utility, 5-inch santoku, and 3.5-inch parer) covering most common cutting tasks.

The handles are triple-riveted and contoured for a comfortable hold, with a full tang design that helps balance the knives well, making them easier and safer to control. The included blonde rubberwood block keeps the knives organized and accessible. The handle material is listed as ceramic, which may feel harder or less comfortable compared to softer materials like rubber or plastic for some users. While the self-sharpening feature is handy, it may not replace professional sharpening over long-term heavy use if you want the absolute sharpest edge.

Weighing about 6 pounds for the full set and with moderate blade lengths, this set is a well-rounded choice for home cooks who appreciate a low-maintenance knife set that stays sharp with regular use.