Champagne glass
A champagne glass is stemware designed for champagne and other sparkling wines. The two most common forms are the flute and coupe, both stemmed; holding the glass by the stem prevents warming the drink. Champagne can also be drunk from a normal wine glass, which allows better appreciation of the flavor, at the expense of accentuating the bubbles less.
Flute
The champagne flute is a stem glass with either a tall tapered conical shape or elongated slender bowl, generally holding about of liquid.The earliest examples of flute-like glasses date back to the Roman era. In modern times those made at Murano near Venice, being of fine craftsmanship, greatly grew in popularity during the 16th century and were subsequently exported and mimicked in England and the Netherlands. During the late 17th century it was aggressively promoted as "the glass of fashion" by Charles de Saint-Évremond, while he was in exile at the court of Charles II, and its popularity grew as a champagne glass throughout the 18th century in England and France.
The champagne flute was developed along with other wine stemware in the early 18th century as the preferred shape for sparkling wine as materials for drinking vessels shifted from metal and ceramic to glassware. Initially, the flute was tall, conical, and slender; by the 20th century, preferences changed from a straight-sided glass to one which curved inward slightly near the lip.
This inward taper is designed to retain champagne's signature carbonation by reducing the surface area for it to escape. Nucleation in a champagne glass helps form the wine's bubbles; too much surface area allows carbonation to fizzle out quickly. More bubbles create greater texture in the taster's mouth, and a flute's deep bowl allows for greater visual effect of bubbles rising to the top. The flute's narrow cross-section also minimizes the oxygen-to-wine ratio, which enhances both the wine's aroma and taste.
While most commonly used for sparkling wines, flutes are also used for certain beers, especially fruit beers and Belgian lambics and gueuzes. The flute shows off the beer's color, and helps gather the aroma for the nose. The champagne flute is distinguished from the pilsner glass, which lacks a stem.