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Cork moth

The cork moth is a butterfly (moth) from the moth family. It is 7.5 millimetres long and has a wingspan of 10 to 14 millimetres. The insect likes to lay its eggs in damp places in the wine cellar. If this happens on a cork, it is eaten by the hatched caterpillar (also known as the cork worm) and thus leaks, causing the wine to oxidise and even leak (in addition to mould).


It is also possible that the taste of the wine is impaired by mould, bacteria and mites, which settle on the cork crumb clusters interspersed with faeces and enter the bottle through the leaking cork. This can also cause the wine to develop a mouldy taste. You can recognise the infestation by the caterpillar itself on the cork or on cork crumbs or on the bottom. Uninfested bottles can be protected by coating the cork with document sealing wax. Good protection is provided by using Flaschen-bottle capsulescapsule. The cork moth can also be controlled using biological moth traps.

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Markus J. Eser

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Markus J. Eser
Weinakademiker und Herausgeber „Der Weinkalender“

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