How Often Should You Sharpen Your Kitchen Knives?

Hint: The Answer Isn't Found on a Calendar.

People ask us all the time: "How often should I sharpen my kitchen knives?" The answer usually surprises them. Instead of asking, "How long has it been?" We like to ask, "How is your knife cutting today?" Every knife is different. The steel, how often you cook, what you cut, your cutting board, how you store your knives, and even whether they go through the dishwasher all affect how long an edge lasts. That's why we created The Blade Butlers 3-Food Knife Test.

The Blade Butlers 3-Food Knife Test

Instead of guessing, let you knife tell you when it's ready.

Each of these foods challenges your knife in a different way, which is why together they give you a surprisingly accurate picture of your edge.

🍅 The Tomato Test

A tomato has one of the trickiest combinations in the kitchen: delicate flesh protected by suprisingly tough skin.

A sharp knife immediately bites into the skin and slices cleanly.

A dull knife often slides across the surface or squishes the tomato before finally cutting through.

If your tomato is sliding and squishing...

...your knife is asking for a little attention. As 🧅 The Onion Test

An onion tells you something different.

Because it's firmer than a tomato, a dull knife doesn't necessarily fail immediately.

Instead, you'll notice yourself using more pressure.

A sharp knife glides.

A dull knife makes you work.

If you've started pushing harder than you used to...

...your edge is fading. 🌿 The Fresh Herb Test

This may be the most overlooked test of all.

Fresh herbs are delicate.

A sharp knife slices them cleanly.

A dull knife crushes and bruises them.

Bruised herbs lose moisture, darken faster, and don't look nearly as good in your finished dish.

If your basil looks tired before dinner starts...

...your knife probably is too. So... How Did Your Knife Do? If your knife struggled with even one of these tests, it's time to bring the edge back. At Blade Butlers, we don't ask how long how long it's been. We ask how is your knife cutting today. Three Things That Make Your Edge Last Longer 1. Store Your Knives Properly

The edge is the most delicate part of the knife.

Throwing knives loose into a drawer allows them to bang against other utensils every time you open it.

Instead, store them:

• In a quality knife block

• On a magnetic knife strip

• In a drawer organizer that keeps blades separated

• With a blade guard or edge sleeve

Every time your knife bangs into another utensil, that delicate edge takes a tiny hit. Those tiny hits add up. Protect the edge, and it will stay sharper longer. 2. Skip the Dishwasher

Dishwashers are hard on knives.

Not because of the water.

Because of everything else.

High-pressure spray can knock knives into other utensils, rolling or chipping the edge.

Heat and detergent can shorten the life of handles and loosen them over time.

A quick hand wash and towel dry only takes a minute and can dramatically extend the life of your edge. 3. Your Cutting Board Matters

Not all cutting boards are created equal.

The best options:

✅ Wood

✅ Quality plastic

Avoid:

❌ Glass

❌ Granite

❌ Marble

❌ Ceramic

Those surfaces are much harder than the edge of your knife.

Think of it this way: your knife should be harder than the food you're cutting, not the cutting board beneath it. The Bottom Line

Don't let the calendar decide when it's time to sharpen.

Let your knife tell you.

Remember The Blade Butlers 3-Food Knife Test.

The next time you're wondering whether it's time, remember The Blade Butlers 3-Food Knife Test.

Grab a tomato, an onion, and a handful of fresh herbs.

Your knife will tell you everything you need to know.

If it doesn't pass the test, we'd be honored to bring the edge back. Ready to Bring the Edge Back?

At Blade Butlers, we make professional knife sharpening easy by coming directly to your home. No dropping knives off. No waiting weeks to get them back. Just sharp knives, right at your doorstep.

Schedule Your Blade Butlers appointment today. FAQ Does honing replace sharpening? No Can expensive knifes still become dull? Absolutely. In fact, many premium steels hold an edge longer, but every knife eventually becomes dull with normal use. How often should I hone my knife? Pay attention to performance, not the calendar.

If you notice your knife taking a little more effort to cut, it's a good time to hone the edge.

Think of honing like combing your hair. It helps put things back in place, but eventually you still need a haircut. In the same way, honing helps realign the edge, but eventually every knife needs sharpening to create a fresh edge again. Can Blade Butlers sharpen serrated knives? Yes. We sharpen serrated knives every day.

Published July 2026