DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
🔪 Sharpen Like a Pro, Slice Like a Boss!
The PORTENTUM Knife Sharpener is a professional-grade, three-stage manual sharpener featuring ceramic stones, tungsten carbide plates, and diamond rods. Its ergonomic, ambidextrous handle and heavy-duty non-slip rubber base provide unmatched stability and comfort. Designed for straight-edged and serrated kitchen knives, it revives dull blades with ease. Backed by detailed instructions, a quick-start video, and dedicated Europe-based support, it’s the ultimate tool for chefs and home cooks seeking precision and reliability.
| ASIN | B0DB6BBNWX |
| Best Sellers Rank | 14,111 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 14 in Manual Knife Sharpeners |
| Brand | PORTENTUM |
| Brand Name | PORTENTUM |
| Colour | Black |
| Country Of Origin | Spain |
| Customer Reviews | 4.5 out of 5 stars 1,294 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Grit Type | Super Fine |
| Grit type | Super Fine |
| Item Dimensions L x W x H | 20L x 4.5W x 7.5H centimetres |
| Item Type Name | Knife Sharpener - Smart Sharp by Lantana. No1 Choice for Sharpening Kitchen Knives. Next Generation 3 stage Kitchen Knife Sharpener for professional results - ceramic stone, tungsten carbide plates, diamond rod. Ergonomic Design with a Stylish Black/Chrome Finish. Used by Chefs World Wide - Sharpen Your Blunt Blades Now! |
| Item Weight | 185 Grams |
| Item weight | 185 Grams |
| Manufacturer | PORTENTUM |
| Material | Ceramic , Tungsten Carbide |
| Material Type | Ceramic, Tungsten Carbide |
| Product dimensions | 20L x 4.5W x 7.5H centimetres |
D**N
Very effective 😍
Very effective sharpening tool. It is well made, ergonomic and easy to use. Used it on my main kitchen knife which was really dull and useless. With just a 30 second run through this little sharper. It sliced through a ripe Tomato with ease. Its rubber like body is really tactile, and enables a firm grip on surfaces. This is very important for safety when sharpening knifes . I have had cheaper versions of the type of tool . I’m hopeful this will last longer, time will tell🤔. Overall very pleased with the purchase. Happy Xmas to all.
K**A
Great quality
My husband loves this works brilliantly knives have never been sharper, easy to use and good price and quality
D**E
Very good
Good sharpener and easy to use
M**R
Good product
Good product and works for me.safe quick and easy to use
M**T
Cheap, high quality, does the job.
Sharpens knives well. Old knives now like new. Easy to use, easy to store, very well made and strong, small size, very effective sharpening tool.
T**E
It’s ok
It’s ok. Not sure if I’m using it properly but doesn’t sharpen knives as much as I’d like.
H**Y
Sharp as new
Bought this because of the price. Needed to sharpen all of my knives but not very good with the steel lol. Was sceptical of how good these type of sharpeners were so opted to try this one for a real low price just in case it was no good. Pleasantly surprised of how easy to use and the speed to sharpen the knives after a few strokes through each aperture. Knives sharp again tested on thinly sliced beef of a joint. Well worth £5
K**G
The best sponges around
Does the job?
Trustpilot
3 days ago
3 weeks ago