Equipment

Peeler

A peeler is a knife with a depth stop, and like any knife it works well when sharp and badly when blunt. A blunt peeler takes off more flesh than skin, requires more force, and is more likely to slip.

The two shapes

Swivel (straight)
Blade in line with the handle. You pull it towards you. Good control for small round things — potatoes, apples — and for peeling in the hand.
Y-shaped (harp)
Blade across the end. You push it away or draw it down. Faster, more comfortable for long strokes, and much better for hard vegetables like squash and celeriac.
Serrated
A Y-peeler variant for soft skins — tomatoes, peaches, ripe pears — that a smooth blade slides off.
Julienne
Toothed blade that cuts fine strips. Good for salads and garnishes, a novelty otherwise.
Which to own
Both a swivel and a Y. They are inexpensive and genuinely suit different jobs.

Using one well

Sharpness, and why peelers get thrown away

Peeler blades are thin and hard and they do go blunt, and unlike a knife most people never sharpen one. A blunt peeler drags and tears, needs considerably more pressure, and removes a noticeably thicker layer — which over a year is a real quantity of food.

Some blades can be touched up on a fine stone or with a ceramic rod, at a very shallow angle. Most cannot practically be sharpened at home, and peelers are cheap enough that replacing one every year or two is reasonable.

The test is simple: it should take a clean strip off a potato with almost no pressure. If you are pressing, replace it.

What not to peel

The other things it does

Most peelers spend their lives on potatoes and carrots and are capable of considerably more.

Common questions

Which peeler for butternut squash?

A sharp Y-peeler. Even then, halving and roasting it skin-on is often easier than peeling it raw.

Can I sharpen a peeler?

Some, at a very shallow angle on a fine stone. Most are more practically replaced.

Is the little eye-remover useful?

The pointed loop on a swivel peeler genuinely works for potato eyes and blemishes.

Left-handed peelers?

Y-peelers are ambidextrous. Some swivel peelers are not — check before buying.

Try this next