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Cork nuggets

Looking for granulated cork in the form of larger cork pieces, but only finding poor-quality materials or cheap synthetic alternatives in chain stores? Mass-produced options rarely meet the needs of more demanding customers. Cork nuggets are a high-quality, rarely available fraction — made up of irregular, natural, and aesthetically pleasing pieces of cork.

You probably have a few questions, so we’ve prepared some answers!

WHAT ARE CORK NUGGETS?

They’re the largest fraction of cork granules — you could say it’s granules in XXL form. The pieces of cork are irregular in shape and usually a few centimetres long.

WHAT ARE CORK PIECES USED FOR?

In the construction industry – as an insulating material for lightweight structures, improving both thermal and acoustic comfort.
In light industry – as an eco-friendly, easy-to-work material for various technical applications.
In furniture manufacturing – as a lightweight, natural filler and component in the production of sustainable furniture.
In the production of anti-slip, abrasion-resistant industrial flooring – cork works well as a flooring component.
In modelling and set design – as a natural material that mimics rubble, rocks, or terrain features; ideal for building models, dioramas, and theatre sets, and easy to shape and form.
In terrariums – as a natural decoration and substrate for exotic animals.
For hobbyists and artists – perfect for crafts, DIY projects, decorative work, and creative art.
In children’s art activities – a lightweight, safe material suitable for workshops and creative sessions.
In interior decoration – as a filler for decorative vases, bowls, aquariums, and more.

WHAT IS THE DENSITY OF CORK PIECES?

It depends on the size of the chunks. We offer two main ranges:

Pieces measuring 10–20 mm have a density of approximately 135–145 kg/m³,
For larger pieces, 10–50 mm, the density is around 130–140 kg/m³.

DOES GRANULATED CORK COME WITH A CERTIFICATE?

Yes – they come with an official hygiene certificate issued by the National Institute of Public Health in Poland (PZH). This confirms that the material is completely safe for skin contact – it causes no allergies, irritation, or any side effects.

Importantly, we are currently the only company in Poland offering cork granules with this certification.

ARE CORK PIECES ECO-FRIENDLY?

Yes – cork is a natural and fully biodegradable material. It’s harvested from the bark of the cork oak tree – without cutting the trees down! The tree continues to grow, and the bark regenerates. A single cork oak can “share” its bark for over 150 years.

Interestingly, most cork comes from Portugal and Spain, where harvesting is carried out in a controlled and sustainable way. It’s one of the most environmentally friendly methods of sourcing raw material that exists.

WHAT’S THE DIFFERENCE BETWEEN CORK NUGGETS AND REGULAR CORK GRANULES?

The main difference lies in the size of the cork pieces:

Cork nuggets are larger, irregular fragments – usually a few centimetres long.
Cork granules are smaller, more uniform grains.

You could say that cork nuggets are the “coarse grade” of cork granules – both materials come from the same raw source, but they differ in the size of the cork particles.

Cork pieces come in various shapes and sizes, but they all share the same qualities: they’re matte, natural in appearance (a bit like wood), but more porous and softer to the touch. They’re not glossy or slippery. When you place them on a table, they don’t clatter – they land with a soft, quiet thud. And when you touch them, there’s none of the cold sensation you get from plastic or metal. This isn’t some factory-made, mass-produced material – it’s something that lives at its own pace. It has gentle discolourations, irregular pores, and the occasional tiny indentation. And that’s where their charm lies – in the fact that they’re not perfect.

Usually, when something natural comes into contact with water, you start to worry: “Will it go mouldy?”, “Will it soften?”, “Will it start to smell?” But natural cork is different – it doesn’t soak up water like a sponge. It doesn’t ferment, rot, or absorb that musty damp smell.

These days, everything’s labelled as “eco”, “organic”, or “natural” – but often, it’s just a label. Each cork piece, however, comes from bark that’s been carefully stripped from a tree without causing it any harm. Every time a cork oak is “trimmed” like this, it actually boosts the tree’s ability to absorb even more carbon dioxide from the air. In practice, this means the more people choose natural cork, the more they support cork forests in their natural, ecological role. And we’re not talking about some trendy eco-marketing – this is a real, biological effect. Even if you’re buying cork nuggets just for fun, it still has a genuine impact on the environment.

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12 Nowosolska Street 60171 Poznan, Poland

office@corkstore24.co.uk

You probably have a few questions, so we’ve prepared some answers!

WHAT ARE CORK NUGGETS?

WHAT ARE CORK PIECES USED FOR?

WHAT IS THE DENSITY OF CORK PIECES?

DOES GRANULATED CORK COME WITH A CERTIFICATE?

ARE CORK PIECES ECO-FRIENDLY?

WHAT’S THE DIFFERENCE BETWEEN CORK NUGGETS AND REGULAR CORK GRANULES?

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