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What are corks used for?
Cork's elasticity, impermeability, and chemical stability means that it seals the bottle without contaminating the wine, even when it must mature for many years. The Romans also used cork for the soles of shoes and for floats for fishing nets.
What is cork made of?
What is cork made of? Cork consists of suberin cells in the shape of tiny pentagonal or hexagonal honeycombs, a complex fatty acid and filled with an air-like gas, which makes up 90% of its volume. It possesses an average density of around 200 kg/m3 and low thermal conductivity.
Why is corked wine better?
Due to its porous structure, cork allows tiny amounts of oxygen to enter the wine, which can benefit wines that are particularly tannic and need time in the bottle for those tannins to soften. So, in this case, oxygen – in very small, controlled doses – can be a wine's friend.
What is the biggest use of cork?
* Thanks to the cork's cell-like structure, the material is elastic, resilient and highly impermeable. * The ancient Greeks and Romans used cork in combination with natural resins to stopper wine and oil amphorae. Now, some 70 percent of all cork produced is used to make wine bottle stoppers.
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