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Toaster Wattage Explained: Does Higher Power Mean Better Toast?

Higher wattage does not always mean better toast. We break down what 850W to 1700W means for your electricity bill and browning results, from £23.00 upwards.

By Rachel Thornton · Published 25 August 2026 · 8 min read

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Contents
  1. What to look for
  2. Our top picks
  3. Frequently asked
  4. Related guides

Toaster wattage in the UK ranges from 850W to 1700W, and the number on the box matters less than you might think. On a 240V mains supply, even a modest 850W toaster can deliver evenly browned results if the heating elements are well designed. What wattage actually changes is how quickly a slice is ready, and by how much each cycle costs you.

Russell Hobbs Honeycomb 2 Slice Toaster (Extra wide slots, High lift feature, 6 Browning levels, Frozen/Cancel/Reheat function, Removable crumb tray, 850W, Black, Textured high gloss) 26061 — Toasters deal
Russell Hobbs Honeycomb 2 Slice Toaster

What to look for

01Wattage and boil time: what the numbers actually mean

A toaster's wattage tells you how much power it draws from your 240V mains supply during each cycle, not how well it toasts. An 850W model like the Russell Hobbs Honeycomb 2-Slice draws roughly half the power of a 1700W four-slicer, but it still reaches the temperatures needed to brown bread properly. The practical difference is speed: a 1700W toaster will finish a cycle around 30 to 40 seconds faster than an 850W one. Where wattage matters more is in a four-slice model: spreading 1400W to 1700W across four slots means each slot gets adequate heat.


02Slot size and what fits in a UK kitchen

UK bread comes in a wide range of thicknesses, from a standard 12mm supermarket slice to a 25mm doorstep cut or a chunky crumpet. Extra-wide slots, typically 38mm to 40mm across, handle all of these without forcing. Most toasters in this price range sit between 28cm and 35cm long on the worktop, which matters if your kitchen has limited counter space between the hob and the wall units. Standard UK fitted kitchens often leave around 45cm to 50cm of usable worktop depth, so a compact two-slicer is easier to tuck away. If you regularly toast bagels, teacakes, or thick sourdough, prioritise slot width over wattage. High-lift levers are also worth seeking out: they let you retrieve shorter slices safely without burning your fingers, a feature that is genuinely useful rather than a marketing add-on.


03Browning settings and evenness

Every toaster in this selection offers six browning levels, but the quality of those levels varies. A well-calibrated dial moves in small, predictable steps from pale gold to deep brown. Cheaper models can jump dramatically between settings three and four, leaving little room for your preferred shade. Look for a reheat function if you often leave toast sitting, and a defrost setting if you keep bread in the freezer, which many UK households do to reduce food waste. The Russell Hobbs Perfect Toast Technology range uses a sensor to adjust cycle time based on how warm the slots already are, which reduces the common problem of the second batch coming out darker than the first. In hard-water areas, limescale can affect some steam-based kitchen appliances, but standard toasters are unaffected, so this is one category where your local water supply is irrelevant.


04Price and value: when to spend more

UK toaster prices in this selection run from £23. 00 to £43.00. At the budget end, you get the core functions: browning control, a crumb tray, and a cancel button. Spending more buys you better build quality, more consistent browning, and features like independent slot controls on a four-slicer, which let you toast two slices on one side while the other two slots sit idle. The Russell Hobbs Honeycomb 4-Slice (£39.00) includes independent controls, which is genuinely useful for a household where one person wants toast and another wants a crumpet.

Our top picks

Best for small kitchens and solo householdsRussell Hobbs Honeycomb 2 Slice Toaster

At £23.00 and rated 850W, the Russell Hobbs Honeycomb 2-Slice is the most affordable pick here and draws the least power from your 240V supply. Extra-wide slots handle crumpets and thick-cut bread, the high-lift lever retrieves shorter slices safely, and the removable crumb tray keeps cleaning straightforward. Its 90-day price has held steady at £23.00, so there is no need to wait for a sale.


Best for households with mixed toasting needsRussell Hobbs Honeycomb 4 Slice Toaster

The Russell Hobbs Honeycomb 4-Slice (£39.00, 1500W) stands out for its independent slot controls, letting you run two slots without heating the other two. That is a practical feature for a family where breakfast timings vary. The textured high-gloss finish hides fingerprints better than brushed steel, and the 90-day low of £22.38 shows this model does go on sale, so patience pays off here.


Best budget two-slicer with smart sensingRussell Hobbs 2 Slice Toaster with

At £24.99 and just 850W, the Russell Hobbs Perfect Toast Technology 2-Slice uses a sensor to compensate when the slots are already warm, so your second batch browns as consistently as your first. Wide slots accommodate most UK bread sizes, and the stainless steel finish suits most kitchen colour schemes. Its 90-day low of £12.50 suggests it discounts heavily, so check Amazon before paying full price.


Best for build quality and longevityBreville Curve 4 Slice Toaster with

The Breville Curve VTT786 costs £43.00 and is the priciest pick here, but its high-lift mechanism and wide slots are noticeably more robust than budget alternatives. Rated for four slices with a chrome and black finish that resists surface marks, it suits a kitchen where the toaster stays on the worktop permanently. Its 90-day low of £31.81 shows it does drop in price, making it better value when caught on offer.

Frequently asked

Does a higher wattage toaster use significantly more electricity?

The difference is smaller than most people expect. A 1700W toaster running for 90 seconds uses roughly 0.0425 kWh per cycle. An 850W toaster doing the same job uses around 0.5p per cycle. Over a year of daily use, the gap between the most and least powerful toasters in this selection amounts to roughly £1.50 to £2.00. Wattage is not a meaningful factor in running costs for a toaster.

What wattage should a four-slice toaster be?

For a four-slice toaster, look for at least 1400W. The models in this guide range from 1400W (PIFCO Essentials) to 1700W (Russell Hobbs Perfect Toast 4-Slice). If you regularly toast four slices at once, the 1500W to 1700W range is the safer choice.

Is it worth paying more than £30 for a toaster in the UK?

It depends on what you want from it. Models under £30, such as the Quest 4-Slice at £24.95 or the Russell Hobbs Honeycomb 2-Slice at £23.00, cover the basics reliably. Spending £35 to £43 buys you features like independent slot controls, sensor-based browning adjustment, and more durable mechanisms. If you toast every day and want consistent results without fiddling with the dial, the mid-range Russell Hobbs models around £36 to £39 represent the best balance of price and performance in this selection.

Can I toast crumpets in a standard UK toaster?

Yes, provided the slots are wide enough. Standard slots measure around 28mm to 30mm, which can grip a crumpet awkwardly and cause uneven browning. Extra-wide slots, typically 38mm to 40mm, are a better fit. All four-slice models in this guide are described as extra-wide. Toast crumpets on a lower browning setting, around level 3 or 4, as their open texture browns faster than bread and can catch at higher settings.

How do I clean a toaster properly?

Unplug the toaster and leave it to cool completely before cleaning. Pull out the removable crumb tray, which all models in this guide include, and empty it over a bin. Wipe the tray with a damp cloth and dry it before replacing. For crumbs inside the slots, hold the toaster upside down over the sink and gently shake it. Do not insert anything metal into the slots. Wipe the exterior with a damp cloth. Clean the crumb tray every one to two weeks to prevent burning smells.