10 Best Knife Sharpeners 2025 in the UK

The AnySharp Knife Sharpener is a compact and user-friendly tool designed for effortless knife sharpening. It's particularly notable for its ease of use, thanks to the pre-set 20-degree sharpening angle that delivers professional results without requiring any special skills. The PowerGrip suction feature ensures the sharpener stays securely in place on any flat surface, allowing for safe, one-handed operation. This is a significant advantage for those who prioritize safety and convenience in their kitchen gadgets.

Its ability to sharpen both standard and serrated knives makes it versatile, suitable for a wide range of kitchen knives, including hardened steel and chef's knives. At just 0.13 pounds and with dimensions of 6.3 x 6.3 x 7 cm, it's highly portable and easy to store, fitting effortlessly into a kitchen drawer. The fine grit type ensures a precise and sharp edge without damaging the knives.

However, it's made of plastic, which might not appeal to those looking for more durable, metal-based sharpeners. Additionally, while it is effective, manual sharpening might still take some practice for those completely new to knife maintenance. Backed by a 2-year warranty and highly rated by users, the AnySharp Knife Sharpener is an excellent choice for anyone seeking a reliable, compact, and efficient sharpening tool for their kitchen.

The Lantana Smart Sharp Knife Sharpener is a manual 3-stage sharpener designed to make kitchen knives sharp again with minimal effort. It uses three different abrasive materials — diamond rods, tungsten carbide plates, and ceramic stones — which cover preparing, sharpening, and honing your blades effectively. This combination works well on straight-edged steel knives and some serrated knives like bread knives, but it’s not suitable for ceramic blades, scissors, or micro-serrated knives.

The sharpener is lightweight and compact, making it easy to move around and store, and its ergonomic handle with a non-slip rubber base ensures a comfortable and stable grip during use. This design fits both right and left-handed users, which adds convenience for anyone in the kitchen. It comes with clear instructions and even a demo video, which is helpful if you haven’t sharpened knives before.

Being a manual sharpener, it requires some physical effort and practice to achieve the best results. Although the sharpening angle isn’t explicitly stated, the three-stage process generally covers the common angles for kitchen knives. Considering its features and positive customer feedback, this sharpener is an excellent choice for home cooks seeking an easy-to-use tool to maintain or restore knife sharpness without investing in electric devices. However, if you need a sharpener for specialized knives like ceramic or very fine serrations, you’ll want to look elsewhere.

The Diamond Edge No.1 Knife Sharpener is designed for those who need a reliable and easy-to-use manual knife sharpener. One of its standout features is the diamond abrasive material, which is known for its durability and effectiveness in sharpening a variety of knives, from chef's knives to pocket knives. The product boasts a lifetime guarantee, ensuring long-term use without the need for replacement, which might appeal to those looking for a lasting investment in kitchen tools.

Its compact size makes it convenient to store and use, whether in the kitchen, outdoors, or even in a workshop setting. Given that it ranks highly in the category of manual knife sharpeners and has positive customer reviews, it seems popular among users. The sharpener's ability to bring any dull blade back to life quickly and its claim of requiring no skill makes it attractive for those who may not be experienced in knife sharpening.

However, while the product claims to be the world's simplest and safest, some users might still find initial use a bit tricky if they are completely new to manual sharpeners. Also, while it is compact and portable, its small size might mean it takes longer to sharpen larger knives or might require more frequent use. In conclusion, this knife sharpener seems well-suited for home cooks, outdoor enthusiasts, and anyone needing a versatile, reliable sharpener that is easy to use and store.