Scientists prefer aluminium screw tops for fine wine
They don’t stand on snobbishness when it comes to making wine at Washington State University.
For the past six years, every wine made by a Washington State oenology student or researcher has come with a screw cap. Cork used to be the only method for sealing a wine bottle. But that has changed, as aluminium screw caps have become more popular. Screw caps help winemakers avoid cork taint, which can wreck as many as seven bottles of wine out of a hundred. Cork taint leaves a mouldy, musty, off-putting smell inside a bottle.