(n.) A type of short tumbler glass used for drinks over ice or neat, also called a rocks glass or lowball glass. The wide-brimmed glass has a thick base that is ideal for muddling non-liquid ingredients in cocktails such as the namesake Old Fashioned.

What is the purpose of old fashioned glass?

An old-fashioned glass is usually defined as a short, cylindrical tumbler glass with a thick base and straight sides, though many variations exist. It's primarily used to serve drinks on the rocks (over ice), but can also be used for certain neat drinks like the Sazerac.

Whats the difference between old fashioned and double old fashioned glass?

The old fashioned, or rocks, glass is named for the most renowned drink served therein: the old fashioned cocktail. ... A traditional old fashioned glass holds 6–8 ounces, whereas a double can hold 12–14. Use an old fashioned glass for drinks built in the glass.