Champagne flute glass
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The champagne flûte (fr. Flûte à Champagne) is a stem glass with a tall, narrow bowl. The bowl of a flute may resemble a narrow wine glass as seen in the illustration; or a trumpet shape; or be very narrow and straight-sided.
As with other stemware, the stem allows the drinker to hold the glass without affecting the temperature of the drink. The bowl is designed to retain champagne's signature carbonation, by reducing the surface area at the opening of the bowl. The flute has largely replaced the champagne coupe or saucer, the shape of which allowed carbonation to dissipate even more rapidly than from a standard wine glass. Its smaller diameter also allows more flutes to be carried on a tray.
Nucleation in a champagne glass helps form the bubbles seen in champagne. Too much nucleation will cause the carbonation to fizzle out quickly. A smoother surface area will produce fewer bubbles in the glass, and more bubble texture in the taster's mouth.
While most commonly used for sparkling wines, flutes are also used for certain beers, especially Belgian lambic and gueuze, which are brewed with wild yeast and often fruited. The tart flavour of these beers, coupled with their carbonation, makes them similar to sparkling white wines, and the champagne flute an ideal choice of glassware.