A twist is a piece of
citrus zest
Zest is a food ingredient that is prepared by scraping or cutting from the rind of unwaxed citrus fruits such as lemon, orange, citron, and lime. Zest is used to add flavor to many different types of food.
In terms of fruit anatomy, the zes ...
used as a
cocktail garnish
Cocktail garnishes are decorative ornaments that add character or style to a mixed drink, most notably to cocktails.
They are used to complement and enhance the flavors in a drink by stimulating the special nerve cells in the nose and mouth
A ...
, generally for decoration and to add flavor when added to a mixed drink.

There are a variety of ways of making and using twists. Twists are typically cut from a whole fresh citrus fruit with a small kitchen knife immediately prior to serving,
although a peeler,
citrus zesters, or other utensil may be used. A curled shape may come from cutting the wedge into a spiral, winding it around a straw or other object, or as a byproduct of the cutting.
The name may refer to the shape of the garnish, which is typically curled or twisted longitudinally, or else to the act of twisting the garnish to release fruit oils that infuse the drink.
[ Other techniques include running the twist along the rim of the glass, and "flaming" the twist.
They are generally about long (although length varies), and thin.]
Cocktail
A cocktail is a mixed drink, usually alcoholic beverage, alcoholic. Most commonly, a cocktail is a combination of one or more liquor, spirits mixed with other ingredients, such as juices, flavored syrups, tonic water, Shrub (drink), shrubs, and ...
s featuring a twist include Horse's Neck. A lemon twist is also an optional garnish for the martini
Martini may refer to:
* Martini (cocktail), a drink made with gin and vermouth, garnished with an olive or a lemon twist
* Martini (vermouth), a brand of vermouth
* Martini (surname), an Italian surname
* Martini (automobile company), a Swiss auto ...
, and an orange twist is traditional for the old fashioned
Old-fashioned, an idiom meaning something not modern, or may refer to:
* Old fashioned (cocktail), a whiskey cocktail
** Old fashioned glass, a type of drinking glass named after the cocktail
* Old Fashioned (film), ''Old Fashioned'' (film), a 201 ...
.
References
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Cocktail garnishes