KitchenStar 18-inch rocker review: one cut, toppings still on the pizza

What it is

A curved stainless steel blade 46 cm (18 in) long with a handle at each end, plus a snap-on cover. One piece of steel, no bearings, no axle, dishwasher safe.

Everything about it follows from the length. At 46 cm the blade is longer than any pizza a domestic oven will produce, which means the whole cut happens in one downward press with a slight rock rather than in a pass that has to travel. That is the entire mechanical difference from a wheel cutter, and everything below follows from it.

What it changes

It changes what happens to the toppings during the cut.

A wheel cutter works by rolling under load. As it rolls it pushes material ahead of and beside itself, which is fine on a bare crust and much less fine through melted mozzarella and a layer of sauce: the wheel drags the cheese along the cut line, gathers it into a ridge, and pulls the rest of it towards the edge. That is one of the ways a pizza that looked right coming out of the oven ends up with its toppings sliding off before it reaches the plate. A rocker shears downward through the same layers instead of travelling through them, so the cheese parts at the line rather than moving along it.

It is also faster and steadier, which matters when the pizza is hot and you are cutting it in front of people. Six cuts, no repositioning, no half-severed crusts to go back and finish.

Where it earns the drawer space is the square formats. A Detroit classic with cheese pushed hard against the edges and a caramelised frico crust is exactly the thing a wheel struggles with, and a Roman al taglio lifted onto a board wants long straight cuts across the whole tray. Lift the pizza onto a board first, though — cut it in the pan and you are pressing a sharpened edge into metal.

Who should skip it

Skip it if you cut in the tin. Pan, Detroit and Sicilian pizzas that never leave their tray need a small blade with a rounded tip that can work into a corner, and a rocker in a metal pan will blunt itself against the base.

Skip it if you make small pizzas. On a 25 cm pie the blade is longer than the pizza and a plain wheel is more manageable. And skip it if drawer space is scarce and you already own a cutter you get on with — this improves the cut, but it is comfortably the least transformative thing on this page. Get the scale and the steel first.