A top Australian red winemaker on cork

I recently tasted vintages 1995-2000 of the truly excellent Cabernet Sauvignon from Moss Wood in Margaret River, Western Australia and noticed that the most recent vintage was poured from a bottle with a screwcap. This struck me as significant for a complex, oak-aged wine like this, designed for many a long year's ageing, so I asked its maker, Keith Mugford, whether he had had a major rethink. Here's his reply.

We have had serious issues re corks for many years but I have been especially irritated since about mid-2000, when it became clear that our Chardonnay wines from 1992 onwards...