Knowing how to clean a chef knife properly is indispensable because a knife that isn't washed and dried the right way becomes unsafe and loses performance fast. The method itself is simple: wash the blade with warm water and add a little dish soap, sanitise it when the job calls for it, and then dry it immediately before putting it back in its proper storage.

Yet in the middle of service, this basic routine often falls apart. Everyone moves fast, and people grab whatever knife is closest, so blades might get rinsed on the fly or left to air dry. Someone might also use it, assuming it's clean, and that's how cross-contamination and edge damage begin.

Keeping your chef knives sharp and service-ready requires better habits. Even if you picked up the basics back in your culinary arts training, the reality is that commercial environments demand faster and more consistent knife care.

If you're looking for knives that can actually keep up with the workload, Industry Kitchens supplies commercial kitchen knives built for high-volume prep and long-term reliability.

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TL;DR: Knife Care in Under 20 Seconds

  • Clean a chef knife properly by washing with warm soapy water, sanitising when switching food types, and drying straight away.

  • Avoid dishwashers, soaking, abrasive pads, and anything that dulls the blade.

  • Good knife care keeps the blade working the way it should and supports a safer, steadier prep flow for your team.



Why Cleaning a Chef Knife Matters in a Commercial Kitchen

Arcos Clasica 210mm chef knife on orange background, ideal for clean cuts and faster food prep in commercial kitchens.

In any venue that handles food (e.g., café, restaurant, bar, catering, aged care, or institutional kitchen), a dirty or poorly maintained blade can cause bigger problems than people realise.

  • Better hygiene + safer food handling:  Residual proteins and juices from raw meat, fish, or vegetables promote bacteria. This becomes a cross-contamination risk, especially between raw and cooked foods, or when knives touch other utensils (e.g., service knives) or boards on a crowded countertop.
  • Compliance with food safety standards: Health inspectors expect knives to be:
    • regularly washed
    • sanitised when required
    • dried properly
    • stored safely
  • Longer-lasting blades:  Moisture, acids, and leftover debris damage edges and speed up corrosion. This applies to all kitchen knives, but anything with wood components is far more vulnerable because wood absorbs moisture easily.
  • Safer for staff:  A dull, neglected blade forces you to use more pressure, increasing injury risk, such as slips and cuts, especially on hard surfaces.
  • Smoother workflow:  Keeping knives correctly maintained supports consistent sharpness during slicing, chopping, and general prep, even on peak hours.


Step-by-Step: How to Clean a Chef Knife Properly

Purple-handled KH Kharve chef knife designed for hygienic slicing, safe cutting, and professional kitchen workflows.

These steps apply to all knife types and should form part of your BOH routine.

  1. Rinse the blade immediately after use. Don't leave knives sitting on cutting boards or benches. A quick pass under hot water (not boiling) on each side removes acids and sugars before they dry or stick to the blades.

  2. Wash with warm water and a mild detergent. Using a soft, non-abrasive sponge, scrub from spine to edge and heel to tip. Always wipe downward toward the edge so your fingers stay safely behind the spine.

  3. Rinse both sides of the blade, including the heel, bolster, and the area where food often hides near the handle. Never rinse a knife under soapy water where you can't see its sharp edge, as it's an easy way to cut yourself.

  4. Sanitise according to your venue’s food safety procedure. Do this every time you switch between meat, fish, vegetables, or ready-to-eat foods. A quick spray of food-grade sanitiser or a hot-water dip is enough, just cover the whole blade, heel to tip.

  5. Dry immediately to avoid damaging the blade over time. Pinch the spine gently with the paper towel and pull downward toward the edge and tip. Don't put the knife down wet “just for a second”, as that’s all it takes for moisture to start creeping in.

  6. Store your knife safely. Use a magnetic strip, knife block, chef roll, or in-bench rack to prevent chips and injuries. Also, never walk the knife across the kitchen without the blade pointed down and alongside your leg; it’s basic BOH safety.

Got knives all over the place? Keep your tools protected and easy to grab with the right knife storage setup for your kitchen.



Knife Sterilisers in Commercial Kitchens

Some Australian commercial kitchens, particularly butchers and high-volume prep areas, use UV or high-temperature knife sterilisers for extra hygiene. These units help keep shared knives clean during continuous service, but don’t replace proper washing, rinsing, and drying. They just support overall knife maintenance.



Choosing the Right Steel: A Quick Knife Material Comparison

Different knife materials react in their own way to washing and daily commercial use. The table below gives you a fast overview of how each one behaves and the specific care it needs to hold its edge and stay service-ready.



Knife Material Cleaning Difficulty Appropriate Care Needed
Stainless Steel Very easy Dry immediately to prevent spotting; generally low-maintenance
High-Carbon Steel Easy but reactive Dry instantly; light oiling after shifts; patina will form naturally
Ceramic Very easy, non-reactive Handle gently; avoid twisting or pressure while washing to prevent cracks
Damascus Steel Easy (depends on core steel) Use a soft cloth only; avoid abrasives to protect the patterned finish
Japanese High-Carbon Easy but highly reactive Dry fast; oil after service; expect patina; avoid cutting hard surfaces

These tips help ensure you're maintaining knives correctly, especially blades made from very hard steel or more delicate patterns.



How Patina Affects Cleaning (and When to Leave It Alone)

High-quality Victorinox Santoku kitchen knife with ergonomic handle for precision chopping and fine food preparation.

If you use high-carbon or Japanese kitchen knives, you'll see the blade darken over time. That's patina, a normal reaction to acidic foods (e.g., onions, citrus, tomatoes, and proteins). And it actually protects the steel and reduces reactivity during prep.

So, does patina change how you clean a chef's knife? Not at all. Clean the knife as you usually would: rinse, wash, sanitise, and dry. You don't need to scrub it off or try to make the blade look new again.

The only non-negotiable rule is drying it quickly. Patina slows corrosion, but it won't stop rust if the blade is left wet.

QUICK TIP: Patina should look smooth and even. If it becomes rough, flaky, and orange, that's rust. Once you spot rust, remove it gently with a rust eraser or a bicarb paste before it spreads, and then dry the blade properly to stop it from coming back.



Wood-Handled Knives: What to Do (and What to Avoid)

If your knife has a wooden handle, common with Japanese or hand-finished blades, keep moisture to a minimum.

  • Never soak it.
  • Never leave it wet.
  • Always dry the handle thoroughly.
  • Oil it occasionally if it starts to dry out.

Wood absorbs water fast, which leads to swelling, cracking, and loose handles, so quick, simple care goes a long way in a flat-out kitchen.



Avoid These Common Knife-Cleaning Mistakes (They’re Costly)

Chef demonstrating an Avanti Dura Edge knife during a lesson on how to clean a chef knife and keep it in top condition.

  • Putting knives in the dishwasher: Heat + harsh detergents + rattling = instant edge damage. Always avoid putting knives in dishwashers, especially those with wooden handles.

  • Leaving knives soaking in sinks: A major safety risk and terrible for the blade. Sitting in water accelerates corrosion, swells wooden handles, and hides the edge where staff can't see it.

  • Using abrasive pads or steel wool: Scratches steel, strips coatings, weakens fine edges. This is especially damaging for knives made from very hard steel.

  • Throwing knives into equipment tubs: This chips the edge instantly and is a safety hazard for anyone reaching in. Hard knocks against other utensils or cutlery dull the blade fast.

  • Letting knives air-dry on wet countertops: Fastest way to invite rust due to moisture sitting on the blade.



BOH Workflow: Training Your Team to Clean Knives Correctly

In most commercial kitchens, knife damage is caused by habits. Fix the workflow, and your knife care instantly improves.

  • Create a designated “knife wash” area: Keeps blades out of cluttered sinks and reduces injuries.

  • Teach the “rinse-clean-sanitise-dry-store” cycle: Fast, repeatable, compliant, and safe.

  • Make drying non-negotiable: Place towels near the wash area and train staff to use them, preventing moisture damage.

  • Train staff to store knives correctly: Set a clear storage system and make sure everyone follows it. Consistent storage prevents knives from being misplaced in drawers or cluttered spaces, where they can chip or injure staff.

  • Include knife care in staff orientation: If knives matter in your kitchen (they do), give the topic at least 3 minutes in training. Proper maintenance is essential for efficiency and safety.

Drying knives properly is part of every good workflow. Reach for a clean, absorbent tea towel that dries blades quickly without leaving fibres behind.



Why Proper Knife Cleaning Saves You Money

A Victorinox chef knife featuring a sharp blade and wood grip for smooth slicing and efficient food prep.

Keep your knives in shape, and you cut down on costs, not just germs.

  • Fewer replacements: Clean, dry knives don’t rust, warp, or chip as quickly, which means you’re not replacing high-end blades every year.

  • Lower injury risk: Dull or dirty knives slip. Fewer cuts mean less downtime, fewer claims, and smoother service.

  • Less sharpening required: Clean blades hold their edge longer, which means you can keep your knife performing at its best without constant maintenance.

  • Faster, more consistent prep: Sharp, well-maintained knives move through meat, fish, and veg faster, helping your team keep up during high-volume service and reducing bottlenecks on the line.



How to Keep Your Chef Knife Clean for Longer

These habits reduce deep cleans and keep knives service-ready:

  • Wipe between ingredients

  • Use proper cutting boards (never glass). Wood and plastic boards are both suitable, depending on your workflow

  • Keep a clean cloth at your station

  • Avoid switching from acidic foods to proteins without a rinse

  • Don’t misuse knives as scrapers or openers

  • Avoid putting blades on hard surfaces like steel benches

Small habits → big payoff.

If you're putting in the effort to look after your knives properly, it makes sense to invest in tools that hold their edge and last. Trusted by chefs worldwide, Victorinox goes far beyond the classic chef's knife, providing you with reliable tools, from boning and paring knives to cleavers and steak knives, all built to last for years.



When Cleaning Isn't Enough

Sometimes your knife needs more than washing:

  • Rust spots: Remove them gently with a rust eraser or a light bicarb paste to lift the corrosion without damaging the edge.

  • Stubborn stains: For mild surface discolouration, a small amount of vinegar can help lift the mark. Treat this as a cosmetic fix, not a cleaning method.

  • Dull edge: This is a sharpening issue. Hone daily, and sharpen regularly using a honing rod or sharpening steel to keep the blade performing at its best.



Before You Get Back on the Tools

Knowing how to clean a chef knife properly keeps your stainless steel blades and high-carbon favourites performing well. It also helps your team work safely and consistently through the rush. A simple rinse-wash-sanitise-dry routine protects your knives and supports a smoother workflow across the line.

If you're upgrading your setup, Industry Kitchens supplies professional knives, storage solutions, and maintenance tools built for Australian hospitality.



Frequently Asked Questions (FAQs)

What is the best way to clean a chef's knife?

To properly clean a chef's knife, wash it straight after use with warm water, a splash of mild dishwashing liquid or food-safe detergent, and a soft sponge. Always wipe from spine to edge (never wipe against the sharp side), so you don't cut yourself. Make sure to rinse the knife thoroughly and dry it immediately with a clean cloth before putting it back in its proper storage spot to prevent rust and damage.

How do you clean a greasy sharp knife?

Hold the blade securely and rinse it under warm running water to loosen the oil. Add a drop of mild detergent to a soft sponge, then wipe the blade from spine to edge in smooth, controlled strokes, no soaking required. If the grease is heavy, a food-safe degreaser will cut through it quickly. Once the residue is gone, rinse the knife well and dry immediately with a clean microfibre cloth to keep the edge sharp and the steel spot-free.

What do chefs use to clean high-quality knives?

Most chefs keep it simple: warm water, mild detergent, and a soft sponge or cloth. High-quality knives, especially carbon steel or Japanese blades, don't require special chemicals. Instead, they simply need careful cleaning and fast drying. Some chefs finish the day by lightly wiping the blade with food-safe oil to protect reactive steel. What they never use: dishwashers, abrasive pads, or harsh detergents, which can quickly destroy a good knife.

What is the best thing to clean a knife blade with?

A soft sponge or microfibre cloth and warm, soapy water are the safest tools for cleaning a knife blade. This combination lifts food residue without affecting the cutting edge or the finish on the steel. It's a simple approach that works across stainless, high-carbon, and Japanese knives. Once clean, dry the blade thoroughly; a quick wipe is all it takes to prevent spotting.

Can I put my kitchen knives in the dishwasher?

No, domestic or commercial, dishwashers ruin knives. The high heat and constant rattling dull the edge, damage the handle, and can warp finer steels. Not to mention, it's unsafe when unloading the machine. Hand-washing takes less than a minute and keeps your knives sharper for far longer.

How do I remove stains or rust from a carbon steel knife?

For carbon steel knives, the safest way to remove light stains or early rust is to use a rust eraser or a purpose-made blade cleaner. These are the options most kitchens rely on because they're quick, gentle, and designed for fine steel. If you don't have those on hand, a mild baking soda paste can work as a backup, but it’s not the everyday method in commercial settings. Apply light pressure, work along the blade, rinse well, and dry immediately. Finish with a thin coat of food-safe oil to slow future rusting and keep the steel protected.

How often should you sanitise a chef's knife?

In commercial kitchens, sanitise your chef's knife every time you switch between different types of food, especially when moving from raw proteins to cooked or ready-to-eat items. Many chefs use the same main knife throughout the day, but it must be washed, sanitised, and dried before touching a new food category. During heavy-load prep, this can mean sanitising several times an hour. At minimum, sanitise after each task and again at the end of the shift to reduce cross-contamination risks.





Industry Kitchens supports Australian venues with professional knives, storage, and sharpening solutions that keep kitchens safe, efficient, and service-ready.

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