Cubikook CS-T01 3-Stage vs. Longzon 4-Stage Manual Sharpener: Side-by-Side Comparison

Overall Verdict

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The Longzon 4-stage sharpener gave a decent performance in most of our tests, especially when it came to edge material retention and edge sharpness. However, it was mediocre in the deciding ones, such as sharpness and sharpening time. Other than that, it’s a well-made, sturdy, straightforward piece of equipment.

The Cubikook CS-T01 3-stage sharpener comes with its own flaws, namely a poorly attached brand label and a shoddily-fitted ceramic rods; yet, it found itself among the top in all parameters. With a practical design and strong construction, it offered great stability and was among the safest and easiest to sharpen with.

Pros & Cons

Excellent stability
Affordable price
Consistent sharpness
Solid and sturdy construction

Sleek design
Substantial, accommodative size
Fine, smooth knife edge
Inclusion of protective gloves
Slot for scissors

Small ceramic rods
Flaky brand label

Tall base
Slow sharpening
Ineffective slot layout

Key Specs

Stages

Scissor sharpener

Yes

Abrasives

diamond, tungsten carbide, ceramic

Diamond, tungsten carbide, ceramic

Grit size

Coarse, Medium, Fine

Dimensions

L8.4 x W1.9 x H2.3 inches

L9.3 x W1.8 x H3.1 inches

Suitable for

Quick, casual sharpening on a low budget

Where to Buy

Price at publication

$17.50

$13.30

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Analysis and Test Results

Performance

Overall Performance Scoring

8.0

5.6

Sharpening Time to Cut a Lemon

7.6

1.0

Sharpening Time

1 minutes 30 seconds

3 minutes 10 seconds

Cutting Feel

Swift and smooth

Material Retention

8.0

9.0

Medal residue on the three abrasive slots on the Cubikook knife sharpener

A bowl containing metal sharpening residue next to the Cubikook sharpener

Metal residue in the sharpening slots of the Longzon knife sharpener

The Longzon household knife sharpener next to a bowl containing metal dust residue

Sharpening Time

1 minute

Target Sharpness

Maximum Sharpness Achieved

8.0

6.0

Sharpening Time

6 minutes

Sharpness Level

8 (Chicken breast with skin, 1 swipe)

7 (ripe tomatoes)

Edge Smoothness

8.7

9.0

Close up view in vignette of the knife blade and edge after sharpening with the Cubikook Chef' Sharpener

Design

Overall Design Scoring

8.5

9.1

In the Box

The Cubikook 3-stage knife sharpener next to its package box

The Longzon knife sharpener lying next to its package box, instruction leaflet, and two gloves

Dimensions

Length

8.4" (21.3 cm)

9.3" (23.6 cm)

Width

1.9" (4.8 cm)

1.8" (4.6 cm)

Height

2.3" (5.8 cm)

3.1" (7.9 cm)

Weight

7.9 oz (225 g)

8.7 oz (246 g)

Build Quality

8.8

9.1

The abrasives and part of the handle of the Cubikook CS-T01

The Longzon sharpener standing on a surface

Working Section

Levels of Sharpening

Coarse, Medium, Fine

Sharpen, Hone, Polish

Abrasive

Diamond rods, tungsten carbide blades, ceramic rods

Tungsten carbide blades, diamond rods, ceramic rods

Mechanism

Pull through

Sharpening Angle

20 degrees

Base

The Longzon sharpener lying on a surface with its base in full view

Part of the base of the Longzon manual knife sharpener

Material

ABS plastic

ABS

Feet Type

silicone base

EVA feet

Grip

7.5

9.0

The grip of the Cubikook kitchen knife sharpener

Material

ABS

ABS, TPR

Usability

Overall Usability Scoring

9.4

8.2

Slot Arrangement

7.0

The working section on the Cubikook, with 3 slots featuring diamond rods, tungsten carbide blades, ceramic rods

The working section on the Longzon handheld sharpener, with 1 slot for scissors and slots 2, 3, 4 for knives

Insertion

9.5

9.0

Top view of a knife being sharpened with the Cubikook, the sharpener being held in one hand

Top view of a kitchen knife being sharpened using the Longzon with 2 hands holding them

Pulling Through

9.0

8.0

Cubikook Knife Sharpener Pulling Through

A kitchen knife being sharpened with the Longzon, and the 2 hands that hold the knife and the sharpener

Stability on a Clean Surface

9.5

8.5

2 hands holding and sharpening a kitchen knife with the Cubikook sharpener on a countertop — The Cubikook has a low height and a wide base which helps minimize the risks of flipping during sharpening.

A hand holding the Longzon on a kitchen countertop and sharpening a knife with it.

Stability on a Wet and Dirty Surface

8.0

2 hands holding and sharpening a kitchen knife with the Cubikook on a salt-sprinkled countertop

A kitchen knife being sharpened with the Longzon on a countertop with salt particles

Behind the Comparison

Anh NgoSenior Editorial Director

Anh Ngo is a writer with 9 years experience at different media outlets, covering from public news and events to product testing and analysis. At HealthyKitchen101, she works across different departments, communicating closely with its network of writers, editors, and health, tech, and search engine experts to provide a meaningful and pleasant reading experience for visitors.

Lap VoTest Lead

Lap is Head of the Research, Testing, and Review Team (RTR Team) at HealthyKitchen101.com, where he directs and supervises the testing of kitchen gadgets and appliances.

Nguyen NtkVisual Specialist

Nguyen Ntk is a graphic designer, photographer, and videographer whose philosophy centers around respecting and celebrating the beauty of reality. Through his lenses, Nguyen strives to capture the true essence of objects and events, showcasing and highlighting authentic features without distortion or exaggeration.