A sweet wine is one that contains enough residual sugar to be considered too sweet for dinner (= 5% RS). Some of these wines are naturally sweet, while others are fortified. Examples of the former category include Auslese from Germany or passito from Italy, while fortified sweet wines include port as well as sweet sherries such as PX.
Alcoholic levels vary with these sweet wines, from 5.5% for a Moscato d'Asti from Italy to 20% with a port or sherry. Colors range from light amber to deep gold for a non-fortified sweet wine, such as Riesling; these wines have aromas of honey, caramel and tropical fruits.
There are also sweet liqueurs, such as cream-based or fruit-based, produced from any number of fruits from raspberries and cherries to peaches and bananas.