Joybuy Insights

Buying Kitchen Knives: A Guide to Choosing the Right Blade, Edge and Equipment

A kitchen knife needs to be more than just sharp. What really matters is whether the blade shape, edge, length, handle and care instructions suit your own cooking habits. If you focus only on eye-catching marketing claims like "extra sharp", "stainless" or "dishwasher-safe", you could easily miss important details.

Common Pitfalls When Buying Kitchen Knives

1. One knife for every job

A large chef's knife can handle many tasks, but it isn't automatically suitable for bread, tomatoes or delicate garnishes. A smooth blade can bruise a soft tomato, whereas a serrated edge usually grips the skin much better. For bread, cakes and pastries, a sufficiently long bread knife makes sense so the blade can glide through the food in just a few strokes.

2. Confusing "dishwasher-safe" with effortless care

With dishwasher-safe kitchen knives, cleaning is generally possible as long as you follow the manufacturer's instructions. However, hand washing is still often recommended because high temperatures, detergents and contact with other cutlery can put extra strain on the blade and handle. Knives with wooden handles should generally not go in the dishwasher.

3. Material descriptions without full details

Stainless steel knives are corrosion-resistant, but they are not completely immune to acids, moisture or harsh cleaning agents. After cutting citrus fruits, tomatoes or other acidic foods, the blade should be cleaned and dried promptly. Likewise, the term "forged" alone doesn't tell you whether the handle, balance and blade thickness are right for your intended use.

Which Features Matter Before You Buy

Blade length and knife shape

The right blade length depends on what you're cutting, your work surface and your preferred handling:

  • Vegetable knives and tomato knives around 10 to 11 cm are ideal for small foods, peeling and precise cuts.
  • A Santoku knife around 17 cm is designed for slicing, chopping and mincing vegetables, meat and herbs.
  • A chef's or carving knife around 19 to 20 cm offers more reach with larger ingredients.
  • A bread knife from 21 to 26 cm makes cutting large loaves, cakes and pastries much easier.

The knife shape should match the task. A carving knife or ham knife often has a longer, narrower blade for even slices. A pizza knife or steak knife with a serrated edge, on the other hand, is suited to firm surfaces with a softer interior.

Smooth, serrated or Granton edge

The serrated edge grips hard skins and crusts without you having to apply excessive pressure to the food. This is handy for bread, tomatoes, pizza and certain fruits. A smooth blade is better for controlled cuts, such as chopping herbs or carving.

A Granton edge (or kullenschliff), as specified on the Victorinox Santoku knife, can reduce contact between the blade and the food. This can make it easier to release slices. However, how well it works also depends on your technique, what you're cutting and how you care for the blade.

Handle, balance and storage

A non-slip handle supports safe control, especially during longer cutting tasks. Plastic or thermoplastic elastomers are easy to care for and lightweight. Wood can feel comfortable in the hand but requires gentler cleaning.

Loose knives in a drawer increase the risk of damage and cuts. A knife block, a magnetic strip with safe spacing or a drawer insert protects the blades better. With a knife set, you should also check whether the block actually fits in your kitchen and which slots are already taken.

Our Selection by User Profile

Best for: Budget-conscious beginners
Victorinox Swiss Classic Santoku knife 17 cm green

Victorinox Swiss Classic Santoku Knife 17 cm

Why this product fits the profile: This compact Swiss kitchen knife covers many everyday cutting tasks and takes up little space in a drawer or knife block.

How this product avoids the pitfall

The 17 cm blade and Granton edge are clearly specified. This makes it easier to match the knife to vegetables, meat and herbs than with a generic all-purpose knife.

Key benefits & strengths

Stainless steel blade, plastic handle, 103 g weight and, according to the product information, dishwasher-safe.

Best for: Quality-conscious buyers
ZWILLING Professional S 7-piece knife block set

ZWILLING Professional "S" 7-Piece Knife Block Set

Why this product fits the profile: This set is aimed at households that want several knife types, kitchen scissors, a sharpening steel and a fixed storage solution all in one package.

How this product avoids the pitfall

The included knives and sizes are clearly listed: a 10 cm vegetable knife, 13 cm utility knife, 20 cm chef's knife and a serrated bread knife.

Key benefits & strengths

Components made from rust-resistant special steel with FRIODUR ice-hardening; bamboo block for protected storage. The product information states dishwasher suitability.

Best for: Specialised uses & heavy users
Victorinox Fibrox bread knife 26 cm with serrated edge

Victorinox Fibrox Bread Knife 26 cm

Why this product fits the profile: For households that regularly eat bread, cakes and pastries, the long serrated blade offers a clearly defined purpose.

How this product avoids the pitfall

The 26 cm blade length and serrated edge are clear selection criteria. This means the knife won't be mistakenly seen as an all-purpose tool for every kitchen task.

Key benefits & strengths

Stainless steel blade, ergonomic non-slip plastic handle, curved blade design and, according to the product data, dishwasher-safe.

Best for: Small kitchens & precise everyday tasks
Victorinox Swiss Classic tomato and table knife set

Victorinox Swiss Classic 2-Piece Tomato and Table Knife Set

Why this product fits the profile: Two compact serrated knives are designed for tomatoes, soft fruits and use at the table.

How this product avoids the pitfall

The serrated edge is clearly specified for soft skins. This avoids the typical mistake of choosing a smooth blade for delicate foods.

Key benefits & strengths

11 cm stainless steel blades, ergonomic polypropylene handles and, according to the product information, dishwasher-safe.

Looking for more options?

We've put together a complete, regularly updated list of products that fully meet these strict selection criteria and the safety regulations in force in the EU.

How to Care for and Safely Store Kitchen Knives

  • Clean the blade straight after use with a mild washing-up liquid and dry it thoroughly.
  • Do not use abrasive sponges or harsh cleaning agents.
  • Avoid chopping boards made of stone or ceramic, as they can put extra strain on the blade.
  • Do not store knives loose in a drawer.
  • For sharpening, choose the right method for your blade edge. A sharpening steel realigns the edge, but it doesn't always replace the need for proper sharpening.
  • Use knives only for food and store them out of the reach of children.

With a ZWILLING kitchen knife or a Victorinox kitchen knife, you should always follow the specific care instructions for that product. A knife set with a block is practical if you'll actually use the knives it contains. For occasional use, a single knife can be more economical and take up less space.

FAQ About Kitchen Knives

Which kitchen knife is best for everyday use?

A chef's knife between 18 and 20 cm or a Santoku knife around 17 cm is suitable for many daily tasks. For bread, tomatoes, pizza and steak, specialist serrated knives are a better choice, as they are designed for those particular surfaces.

Are dishwasher-safe kitchen knives always suitable for the dishwasher?

If the manufacturer states dishwasher suitability, cleaning in the machine is generally intended. However, hand washing is still often recommended for gentler treatment. Knives with wooden handles should not be put in the dishwasher.

How long does a kitchen knife stay sharp?

How long the edge lasts depends on the steel, how often you use it, your cutting technique, your chopping board and how you care for it. Soft wooden boards or suitable plastic boards, along with prompt cleaning and drying, can protect the blade. Regular sharpening is also part of proper maintenance.