PwC study shows: Cork is the most sustainable choice – Biork comes with a negative CO₂ balance
- Biork Author
- Sep 11
- 2 min read
Updated: Sep 12
When it comes to sustainability, many materials are considered
"environmentally friendly." Yet few can prove that they actually capture more CO₂ from the atmosphere than is released during their production . This is precisely what makes cork so special – and the PwC study* provides scientific proof.
📊 The results of the PwC life cycle analysis
In a life cycle analysis (LCA), PwC compared natural cork with aluminum and plastic closures. The results are clear:
🧴 Plastic closures : around 10× more CO₂ emissions than natural cork
🥫 Aluminum closures : even 24× more CO₂ emissions
✅ Natural cork : The only material with a negative CO₂ balance
🌍 Why cork has a positive effect on the CO₂ balance
The cork oak is a climate miracle. Its special feature: After stripping, the tree binds 3–5 times more CO₂ to rebuild its bark.
👉 According to PwC, the production of 1 kg of natural cork causes 1.6 kg of CO₂ emissions . At the same time, the same cork absorbs around 2 kg of CO₂.➡️ This means: 0.4 kg less CO₂ per kg of cork – a contribution to the climate, not a burden!
This makes cork one of the very few materials with a measurably positive effect on the climate .
🦅 More than climate protection
In addition to the negative CO₂ balance, there are other advantages:
Biodiversity : Cork forests (“montados”) are home to rare species such as the Iberian lynx 🐆 or the imperial eagle 🦅.
Socially sustainable : Traditional hand-harvesting generates income for tens of thousands of families in Portugal and Spain.
♻️ From wine to the bathroom
The PwC study examined bottle caps, but the results apply to all cork products: flooring, insulation, fashion items—or sustainable packaging. Cork is replacing plastic and aluminum everywhere, thus improving the environmental footprint.
🌱 Biork – Deodorant with real climate effect
With Biork you bring these benefits directly into your everyday life:
Packaged in real cork – with a proven negative CO₂ footprint
Certified natural cosmetics – without aluminum chlorides, fragrances or microplastics
Economical & long-lasting – one stick lasts for many months
👉 Biork is not only skin-friendly, but also an active contribution to climate protection.
✅ Conclusion
The PwC study proves that cork is not only superior to aluminum and plastic – it is one of the few materials with a negative CO₂ footprint.
With every Biork stick, you're choosing more than just a deodorant. You're choosing a product that protects nature, reduces climate impact, and preserves tradition. 🌍✨
*source: https://www.portoprotocol.com/wp-content/uploads/2021/04/Amorim-Cork_-Analysis-of-the-life-cycle-of-Cork-Aluminium-and-Plastic-Wine-Closures_PWC.pdf?utm_source=chatgpt.com
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