Stainless Steel or Composite Sink: Which Is Better?

A "granite" sink is actually a composite sink: roughly 80% quartz or ground granite, bound with acrylic resin. It is the better choice if you want colour, a matt look and a surface that is hard to scratch; a stainless steel sink is the better choice if you want a more affordable price, impact resistance and very easy cleaning. Neither is "the best" across the board: the choice depends on the style of your kitchen, how much you cook and how much time you want to spend on upkeep. Below we compare the two materials point by point.

When you are designing a kitchen, choosing the right sink is essential for both practicality and looks. Stainless steel and composite sinks are the most popular options, each with its own distinct strengths and limitations.

What composite is (the "granite" sink)

Composite is a material made by mixing a hard mineral powder, usually quartz or ground granite, with a resin that binds it and pigments for colour. For example, the Pyragranite material used by Pyramis contains, according to the manufacturer and its distributors, around 80% natural quartz and high-quality acrylic resin. That is why, in shops, the same sink may be described as a "composite sink", a "granite sink" or a "granite composite sink".

What a stainless steel sink is

Stainless steel kitchen sinks are usually made from AISI 304 stainless steel, also known as "18/10" after its chromium and nickel content, a steel suitable for contact with food. The finish can be polished, satin or textured; matt and textured finishes hide water marks better.

Granite or stainless steel sink: a comparison

Criterion	Stainless steel	Composite (granite)
Scratch resistance	Scratches more easily, especially a polished finish	Very good
Impact resistance	Very good; the material flexes and doesn't crack	Good, but the material is rigid
Heat resistance	Very good	Good; avoid leaving very hot pans directly on it
Stains and marks	Visible water marks, especially on a polished finish	Limescale visible mainly on darker colours
Cleaning	Very easy, with a mild detergent	Easy, but no harsh products, bleach or abrasive scourers
Colours and design	Classic silver, a modern, neutral look	Wide range of colours: black, grey, beige, white, matt look
Price	Affordable options, as well as premium models	Usually more expensive than entry-level stainless steel

Durability and resistance

Stainless steel sinks are known for their resistance to corrosion, knocks and high temperatures. The material has some give, which means it doesn't crack or split easily. On the other hand, stainless steel can be prone to scratches and water marks if it isn't looked after properly. Fine scratches are a cosmetic issue and don't affect how the sink works.

Composite sinks are highly scratch-resistant thanks to their high quartz content, and they don't fade over time, because the pigment runs through the entire material. They withstand high temperatures for short periods, but manufacturers recommend not leaving very hot pans directly on the surface. Composite is more sensitive to harsh chemicals and needs careful cleaning to prevent build-up.

Care and cleaning

Stainless steel sinks are very easy to clean and don't hold on to dirt. A simple wipe with a cloth and a mild detergent is enough to keep them looking good. Water marks can show, especially on models with a polished finish, so a quick wipe after use helps a great deal.

Composite sinks have a non-porous surface, which makes them easy to look after and hygienic. Manufacturers' guidelines recommend rinsing and drying them after use so that limescale doesn't build up, as it shows especially on darker colours. Avoid leaving bleach on the surface, and avoid wire scourers and abrasive creams. For limescale, follow the sink manufacturer's instructions, as recommendations vary from one material to another.

Design and looks

Stainless steel sinks have a modern, minimalist look that suits kitchens of any style. Their neutral finish makes them easy to pair with any worktop and any cabinet colour.

Composite sinks come in a wide variety of colours and finishes, giving you more scope to personalise your kitchen. From granite tones to matt black, grey or beige, they can be matched to the worktop and add an extra touch of elegance to the space. If you are still choosing your worktop material, our guide to types of kitchen worktop may help.

Which is the better choice?

Choosing between a stainless steel sink and a composite one depends on your own preferences and needs:

• If you want a durable, easy-care model with a classic look that copes with knocks and hot pans, a stainless steel sink is an excellent option.
• If you care most about looks, greater scratch resistance and a colour that matches your worktop, a composite sink may be the ideal choice.

Stainless steel sinks

Models with one or two bowls, with or without a drainer, for top-mounting or undermounting:

Composite sinks (Pyragranite)

Composite models in matt shades, easy to match with wood, quartz or stone worktops:

You'll find all the models, along with matching taps, in our kitchen sinks and taps category, and the Greek manufacturer's full range in the Pyramis collection. If you are renovating the whole kitchen, take a look at our dishwashers too, as they are usually fitted next to the sink.

Frequently asked questions

Which is better: a granite or a stainless steel sink?

Composite ("granite") wins on scratch resistance and choice of colours, while stainless steel wins on impact resistance, heat resistance and ease of cleaning. For a hard-working kitchen with heavy pans, stainless steel is more forgiving; for a design that matches the worktop, composite is the better fit.

What is the composite that sinks are made from?

A mixture of mineral powder (quartz or ground granite) and resin, with pigments for colour. In Pyragranite, quartz makes up around 80% of the material.

Does a composite sink scratch?

Only with great difficulty, thanks to its high quartz content. Even so, avoid wire scourers and abrasive pastes, which can damage the finish.

Why do white marks appear on a black composite sink?

White marks are usually limescale deposits from the water, which are more visible on darker colours. You can prevent them by rinsing and drying the sink after use.

Can I put a hot pan in a composite sink?

Composite withstands high temperatures for short periods, but it is best not to leave very hot pans directly on the surface. Stainless steel is more heat-tolerant.

Whichever option you choose, it is important to invest in a quality product that will deliver durability and practicality for years to come.