Knives & Cutting

Mandoline

Adjustable blade for paper-thin, perfectly even slices

A flat frame with a fixed blade that shaves vegetables into uniform thin slices, juliennes, and waffle cuts faster and more evenly than any knife. The blade is brutally sharp — always use the hand guard, every single time.

A mandoline is a flat frame holding a razor-sharp, usually adjustable blade that you slide food across to produce slices of perfectly uniform thickness — thinner and far more even than almost anyone can manage with a knife. With interchangeable inserts it also juliennes, batonnets, and crinkle- or waffle-cuts, turning a pile of potatoes, cucumbers, or fennel into identical, professional-looking pieces in seconds. For gratins, chips, slaws, and any dish where even cooking or elegant presentation depends on consistent slices, it's transformative.

It is also, alongside the slicer, the kitchen tool most likely to send a cook to the emergency room — that fixed blade is brutally, invisibly sharp and doesn't care whether it's slicing a potato or a fingertip. The hand guard exists for exactly this reason, and the rule is absolute: use it every single time, including (especially) on the last few slices when the food gets small and your fingers get close. A cut-resistant glove is cheap insurance. Respected, the mandoline is one of prep's great speed multipliers.

Types & varieties

Full-size French mandoline

A tall, stable stainless frame with folding legs and multiple blades. The professional standard — most versatile and durable, with a learning curve.

V-slicer (handheld/compact)

A smaller V-shaped blade in a plastic frame, cheaper and easy to store. Great for quick jobs, with swap-in julienne and crinkle inserts.

Japanese benriner

A simple, very sharp, adjustable plastic-bodied slicer beloved by cooks for its keen edge and clean slices, with included julienne teeth.

Blade styles

Straight for plain slices, toothed/comb for julienne and batonnet, and corrugated for crinkle and waffle (gaufrette) cuts.

Handheld Mandoline

Compact slicer held over a bowl, drawing produce across a fixed blade for fast even slices of cucumber, radish, and potato without a full bench mandoline.

How to use it

Set it up stable, dial in the thickness, and slide food smoothly across with the guard. Steady, even strokes give clean, uniform slices.

Place it on a stable surface (or over a bowl) with the legs locked or held firmly
Set the thickness, then slide the food down the runway in smooth, even passes
Always seat the food in the hand guard or holder — never push it with bare fingers
Swap in the julienne or crinkle blade for matchsticks, fries, and waffle cuts

Safety

This is the part that matters most. The blade is unforgiving, and nearly every mandoline injury comes from skipping the guard near the end.

Use the hand guard every single time — the last few slices, when food is small, are the most dangerous
Wear a cut-resistant glove as backup; it's cheap and it works
Stop slicing while a sizable nub remains rather than risking the final pass by hand
Clean carefully around the exposed blade with a brush, never a bare swiping hand, and store with the guard on

Common uses

Paper-thin potatoes for gratins and chipsEven slices of cucumber, radish, and fennelJulienned carrots, zucchini, and celeriac for slawsWaffle and crinkle-cut potatoes and vegetablesThin onion and shallot for pickling and fryingUniform apple and pear slices for tartsShaved raw vegetable salads and carpaccioBatonnet and matchstick cuts for stir-fries

Tips & pitfalls

ALWAYS use the hand guard or a cut-resistant glove — every single time, no exceptions. The mandoline causes more home-kitchen ER visits than almost any other tool; never freehand the last of a vegetable, keep the heel in the guard, and stop before your fingers get close.
A cut-resistant glove turns a moment of carelessness into a non-event — wear one.
Stop and use a knife for the last nub instead of risking a hand-close final pass.
Keep the blade sharp; a dull mandoline tempts you to push harder, which is exactly when it slips.
Slice directly over a bowl to catch everything, and keep slices uniform so a gratin or chips cook evenly.