Your guide to Champagne: How to serve, drink and cook with a bottle of bubbly

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What causes the string of bubbles in a Champagne glass?

Scientists have found that imperfections such as the microscopic fibers left by a kitchen towel or even airborne particles are responsible for the streams of bubbles that rise from particular parts of a Champagne flute. Too clean and you won't have as many bubbles! These days, some top glass makers intentionally form imperfections at the bottom of the glass using a laser, so that the molecules of carbon dioxide gather there and form bubbles.