How to Use a Mandoline Safely (Setup, Cuts, Gloves and Cleaning)

A mandoline is the fastest way to turn a potato into 40 identical slices, and it’s also one of the few kitchen tools that sends people to urgent care with the tip of a finger missing. Both things are true for the same reason: the blade is fixed, razor sharp and doesn’t care what slides across it.

So learning how to use a mandoline is really two skills. One is the slicing motion, which takes about five minutes to get. The other is keeping your hand out of the blade’s path every single pass, including the last one, when the vegetable has shrunk to a stub and you’re tempted to push it through with your fingertips. That last pass is the risky one.

The short version: set the mandoline on a flat, dry surface, choose your thickness, cut a flat side on round produce, then push the food across the blade with steady, moderate pressure using the food holder or a cut-resistant glove. Lift the tool to collect slices, and stop when the piece gets small. Save the stub for stock.

What Each Part of a Mandoline Does

Mandolines come in two main styles. Handheld and paddle types (like the Japanese Benriner) are narrow, light and rest on a bowl lip or board. Standing types (like the OXO Good Grips V-Blade) have fold-out legs and a wider platform. The parts are the same on both.

Part	What it does	What to watch for
Runway or platform	The flat surface food slides along before the blade	Keep it dry so food doesn’t skid sideways
Main blade	Straight, diagonal or V-shaped edge that makes the slice	Always the sharpest thing in your kitchen; treat it that way
Thickness dial or plate	Raises or lowers the runway to change slice thickness	Set it before you start, not mid-slice
Julienne teeth	Small vertical blades that turn slices into sticks	Often removable or flip-up; easy to cut yourself changing them
Food holder (hand guard)	Prongs grip the food so your hand stays above the blade	Only protects you if it actually grips; test it first
Legs, feet or hook	Keep the tool steady on a board or bowl	Rubber feet must sit on a dry surface

If you still need to buy one, our roundup of the best mandoline slicers compares handheld and standing models. If slicing isn’t really the job and you want diced onions, a vegetable chopper may suit you better.

Protect Your Hand Before You Slice Anything

Every good mandoline guide starts here, because nothing else matters if this part goes wrong.

Option 1: the food holder that came in the box

Most mandolines ship with a food holder, a plastic cap with metal or plastic prongs. You press the prongs into the end of the vegetable and push the holder, not the food. OXO’s instructions for its Chef’s Mandoline say to always use the food holder when running food over the blade, and they don’t make exceptions.

The trouble is that many holders grip well on a half potato and poorly on a round lemon or a skinny carrot. America’s Test Kitchen noted that many hand guards can’t protect you and hold the food securely at the same time. Before you rely on yours, press it into the vegetable and give it a gentle wiggle. If the food shifts, the guard isn’t enough on its own.

Option 2: a cut-resistant glove

A cut-resistant glove goes on the hand that holds the food. It lets you grip the vegetable directly, which feels more natural, while putting a layer of tough fiber between your skin and the edge.

Gloves sold in the US are rated on the ANSI/ISEA 105 cut scale, from A1 to A9. The number reflects how much force a blade needs to cut through the material. Here’s how the levels line up for kitchen use, based on the scale as explained by restaurant supplier Restaurantware:

ANSI cut level	Force the material resists	Typical kitchen use
A1 to A2	200 to 999 grams	Light handling, little blade contact
A3	About 1,000 grams	Basic knife prep
A4	About 1,500 grams	Everyday knife work
A5	About 2,200 grams	Mandolines, graters, entry-level butchery
A6 to A7	3,000 to 4,999 grams	Boning, oyster shucking

For a home mandoline, A4 to A5 is the practical range. Many gloves sold for kitchen use are labeled “level 5,” which usually refers to the older EN 388 European scale, so check the packaging for the ANSI A-number if you want to compare fairly. The NoCry cut-resistant gloves are a common food-grade option, and they’re machine washable.

Cut resistance is a different rating from heat resistance, so a cut glove won’t help with a hot pan; for that job see our roundup of heat-resistant gloves for cooking.

Two things a glove can’t do. It won’t stop a puncture from a pointed tip, and it doesn’t make you immune to cuts. Think of it as the seat belt, not the brakes.

Option 3: both

This is the safest setup and costs almost nothing extra. Wear the glove on your food hand and use the holder whenever the food is big enough to grip. Houston Methodist hand surgeons, describing a patient who sliced off a fingertip and nail on a mandoline while cutting a potato, recommend a mandoline with a chute or plunger-style guard, or cut-resistant gloves, for exactly this reason.

Setting Up Your Workspace

A mandoline wants a stable base and some elbow room. Here’s the setup that works on even a small counter:

1. Clear a flat, dry spot. America’s Test Kitchen puts this first: a mandoline that shifts mid-slice is how accidents happen. Wipe the counter dry so rubber feet grip, and if free counter is scarce, our countertop organization ideas for a small kitchen help you clear a working area.
2. Put a cutting board under a standing model. Use one that doesn’t slide. A damp paper towel under the board helps. If you’re short on counter space, a board that spans the sink, like the ones in our over-the-sink cutting board guide, gives you room without clearing the whole counter.
3. Don’t balance it over a bowl unless the manufacturer designed it for that. Handheld paddle types often have a notch that hooks onto a bowl rim; wide standing models don’t, and a rounded bowl wobbles.
4. Set the thickness first. Turn the dial or swap the plate before your hand goes anywhere near the blade.
5. Prep the produce. Wash and peel as needed. Cut round foods like potatoes, onions and apples in half so they sit flat, and trim ends so they’re level.
6. Put a container at the exit. Slices pile up fast. A shallow dish at the far end, or just the board, gives them somewhere to go.

How to Use a Mandoline, Pass by Pass

This is the actual slicing motion. It’s the same for a handheld or a standing mandoline.

1. Hold the tool with your non-dominant hand if it’s a handheld model, gripping the handle, not the runway. On a standing model, rest that hand on the frame’s end or the top edge, well behind the blade.
2. Grip the food in the holder, or with your gloved hand, cut side down on the runway.
3. Slide it across the blade in one smooth stroke using moderate pressure. America’s Test Kitchen advises a moderate tempo: fast enough to keep momentum through the vegetable, slow enough that you’re in control.
4. Slide back to the start and repeat. The blade only cuts on the forward stroke, so the return trip is just a reset.
5. Work along the sides of the runway, not dead center. ATK found that platforms flex less near the walls, which gives cleaner slices.
6. Lift the mandoline to collect slices when they pile up. Never reach under the blade to grab them. Reviewed lists this as one of the core safety rules, and a pile of slices left in place can also block the exit and cause jams.
7. Switch to your palm near the end. Once the piece gets short, flatten your hand and push with the heel of your palm, fingers curled up and away. Reviewed suggests this for the last stretch of every vegetable.
8. Stop with a stub left. When there’s about an inch left, you’re done. The stub goes into soup, stock or a salad cut with a knife.

That last step feels wasteful the first few times. It isn’t. A half-inch of carrot costs a few cents, and it’s the part where fingers slip.

Thickness Settings and What to Make With Them

Most home mandolines use a dial or plate system that goes from nearly paper-thin to around 3/8 inch. The OXO Chef’s Mandoline, for example, is marked in 1/8, 1/4 and 3/8 inch settings. Here’s a practical guide to what each range is good for.

Thickness	What it’s good for	Examples
Paper-thin (about 1/16 inch or less)	Raw salads, garnishes, quick pickles, chips	Shaved fennel, radishes, cucumber salad, homemade potato chips
About 1/8 inch	Gratins, layered bakes, stir-fries	Potato gratin, scalloped potatoes, zucchini for a tian, onion rings
About 1/4 inch	Roasting, grilling, sturdy slaw	Sweet potato rounds, eggplant for the grill, cabbage slaw
About 3/8 inch	Thick fries, baked vegetable planks	Oven fries, thick-cut potato wedges

Thin slices are where a mandoline beats a knife by a wide margin. Consistent 1/8-inch potato slices cook evenly in a gratin, and nobody gets a raw piece. If you slice potatoes for fries, our guides on cooking frozen french fries in an air fryer and choosing the best oil for an air fryer cover the cooking side, and the timing is similar for fresh-cut fries of the same thickness.

Beyond Flat Slices: Julienne, Crinkle and Waffle Cuts

Once flat slices feel easy, the other blades open up a lot more.

Julienne and matchsticks

Engage the julienne teeth (a flip lever, a separate insert or a dial, depending on the model). The OXO Chef’s Mandoline uses a julienne cylinder with thin (1/8 inch) and thick (3/8 inch) options. Feed long vegetables like carrots and zucchini lengthwise for long strips, or diagonally for shorter ones.

Take extra care switching blades. The julienne teeth are small and sharp, and they’re easy to brush a knuckle against. Hold the insert by its plastic edges.

Crinkle and ruffle cuts

A wavy blade makes crinkle-cut fries, chips and pickles. Some models, including OXO’s, pair a crinkle side and a ruffle side on one blade.

Waffle cuts

This is the classic trick: use the crinkle blade, make one pass, then rotate the food 90 degrees before the next pass. OXO’s instructions describe exactly this. The ridges cross each other and leave a lattice. Set the thickness thin enough that the ridges actually cut through; too thick and you just get chunky crinkle slices.

Which Foods Work, and Which Don’t

Firm, dense produce is where a mandoline earns its drawer space. Reviewed lists apples, pears, tomatoes, zucchini, carrots, potatoes, radishes and onions as good choices, and suggests skipping softer or awkward produce like pineapple, grapes and broccoli.

• Great fits: potatoes, sweet potatoes, onions, shallots, apples, firm pears, cucumbers, zucchini, carrots, beets, fennel, cabbage, radishes, jalapeños.
• Works with a serrated blade or a light touch: tomatoes, citrus, firm peaches.
• Skip it: very ripe fruit, soft cheese, grapes, broccoli, and anything so small you can’t hold it safely, like single garlic cloves.

A mandoline also doesn’t replace your knife. For dicing, mincing herbs and portioning meat, a good knife is still the tool, and for even slices of cooked meat a meat slicer for home use does what a mandoline can’t. If yours is dull, that’s worth fixing first; our knife sharpener guide explains the options, and forged vs stamped knives plus our Wusthof knives review are useful if you’re shopping for a new one. If peeling big batches is the slow part, look at an electric potato peeler or an apple peeler corer slicer, since a mandoline doesn’t peel.

When the Slicing Goes Wrong

Most mandoline problems come down to three causes: a dull blade, the wrong setting, or a guard that isn’t gripping. This table covers the common ones.

Problem	Likely cause	Fix
Slices are ragged or torn	Dull blade, or a soft food on a straight blade	Sharpen or replace the blade; try the serrated side for tomatoes
Food stalls halfway across	Setting too thick for dense produce, or pressing too lightly	Go thinner, and use steady, moderate pressure
Food is jammed in the blade	Forcing it, or slices piled up underneath	Stop. Tap it free with a knife handle or wooden spoon, then clear the slices
Slices vary in thickness	Pushing unevenly or platform flexing in the middle	Keep the food flat and work nearer the side walls
Guard keeps slipping off	Round or narrow food, or prongs not deep enough	Cut a flat side, press the prongs in fully, or switch to a glove
Mandoline slides on the counter	Wet surface or no board underneath	Dry the counter, add a damp towel under the board

A dull blade is more dangerous than a sharp one, because you have to push harder and the food is more likely to jump. America’s Test Kitchen puts it plainly: a sharp blade is the safest blade. Some Japanese mandolines have removable blades that can be sharpened on a whetstone or by a professional. Cheaper models with fixed blades that have gone dull are usually better replaced.

If You Do Cut Yourself

Even careful cooks slip. Knowing what to do keeps a bad moment from getting worse.

For a minor cut, Dr. Ryan Murphy, quoted by Advocate Health Care, advises applying pressure, raising your hand to slow the bleeding, then cleaning the wound well and bandaging it. Watch it over the next few days. Swelling, discoloration or drainage are signs of infection and a reason to see a doctor.

Go to urgent care or the emergency room if:

• The bleeding won’t stop with steady pressure.
• The cut is deep enough that it may need stitches.
• You can see bone, or you think a tendon or nerve might be involved.
• A piece of fingertip has come off.

Houston Methodist hand surgeon Dr. Jafarnia stresses not waiting on serious hand injuries, because delays can limit how well the hand recovers. If a piece is cut off, bring it with you.

Cleaning and Storing a Mandoline

The sink is the other place people get hurt. A blade hidden under soapy water is easy to grab by accident.

1. Rinse right away. Starch from potatoes and sugar from apples dry on fast and make the blade harder to clean later.
2. Take off removable blades and wash them one at a time, holding them by their frame or plastic edge.
3. Wipe from the spine toward the edge, never along it. A dish brush with long bristles keeps your fingers farther back.
4. Never leave blades in a sink full of water. You or someone else will reach in without seeing them.
5. Check the manual before using the dishwasher. OXO says the Chef’s Mandoline body and food holder go on the top rack, but the blades should be hand washed. If your dishwasher is leaving a film on everything, here’s how to clean a dishwasher.
6. Dry everything before you put it away, especially carbon steel parts on some Japanese models.

For storage, OXO recommends folding the legs under and keeping the crinkle blade in its case. Keep the tool out of reach of children; both OXO and Reviewed mention this. A blade cover, the original box or a dedicated container all work. In a small kitchen, a mandoline stored flat in a drawer with a blade cover takes little room. Our guide to organizing kitchen drawers in a small kitchen has ideas for sharp-tool storage, and vertical storage ideas help if a wall rail or hook would work better. Keep knives separate on something like a magnetic knife strip so you’re not rummaging past blades.

Is a Mandoline Worth It in a Small Kitchen?

It depends on what you cook. A mandoline is thin, cheap and fast, and it makes consistent slices that are hard to match by hand. It’s a good fit if you often make gratins, slaws, pickles, chips or salads with thinly shaved vegetables.

It’s less useful if you mostly dice and chop. In that case a sharp chef’s knife, and maybe a food processor under $100 for big batches, will do more for you. Not sure where a processor fits? Here’s the difference between a food processor and a blender.

If you cook for one, a mandoline is handy for batch-slicing vegetables on the weekend, and it’s one of the tools we flag in our checklist on how to stock a small kitchen for solo cooking. Pair it with our easy meal prep ideas for one person in a small kitchen, and store sliced produce in airtight food storage containers. Cut potatoes brown quickly, so if you’re prepping ahead, check our notes on how long potatoes last. It also makes our list of small kitchen gadgets worth buying when you cook for one.

One rule to take into the kitchen with you: if your fingers are closer to the blade than the food is, stop and reposition.

Related Guides

• 10 Best Mandoline Slicers
• Best Vegetable Choppers
• Best Knife Sharpeners
• Best Knife Set Under $100
• How to Sharpen Ceramic Knives
• Small Kitchen Gadgets Worth Buying When You Cook for One
• How to Organize Kitchen Drawers in a Small Kitchen

Frequently Asked Questions

Do I really need a cut-resistant glove for a mandoline?

If your mandoline's food holder grips well and you use it every time, you can manage without one. But many guards slip on round or small produce, and America's Test Kitchen recommends a cut-resistant glove on the hand holding the food when the guard isn't doing its job. A food-grade glove rated around ANSI A4 to A5 costs little and protects against the slicing cuts a mandoline causes.

Can you cut yourself through a cut-resistant glove?

Yes, it's possible. Cut-resistant gloves reduce the risk of slicing injuries but don't make you immune, and they offer little protection against punctures or stabs from a pointed tip. Treat the glove as a backup, not permission to rush. Keep your fingers flat and away from the blade, use your palm for the last part of the food, and replace a glove once it shows holes, snags or thin spots.

What vegetables should you not use a mandoline for?

Very soft or juicy produce tends to squash instead of slicing cleanly, so ripe tomatoes, soft peaches and grapes work poorly unless your mandoline has a serrated blade. Reviewed also lists pineapple and broccoli as poor fits. Tiny items like garlic cloves and radish ends are risky because there's too little to hold. Firm produce such as potatoes, onions, apples, zucchini, carrots and cucumbers is where a mandoline shines.

How do you clean a mandoline without cutting yourself?

Rinse it right after use so food doesn't dry on the blade. Hold a brush with long bristles, or a sponge on the end of a dish wand, and wipe from the spine of the blade toward the cutting edge, never along it. Wash removable blades one at a time rather than dropping them into a sink full of soapy water where you can't see them. Check your manual before using the dishwasher.

Why does food get stuck on my mandoline blade?

Usually because the blade is dull, the thickness is set too wide for a dense vegetable, or slices have piled up underneath and are blocking the exit. Clear the pile, try a thinner setting, and angle long foods diagonally. If something is jammed, don't force it. America's Test Kitchen suggests tapping it free with the handle of a knife or a wooden spoon.