Liqueurs can be flavored using essential oils or techniques such as cold maceration, hot infusion, or percolation of alcohol with herbs or aromatic substances. During the preparation of the liqueur, sweet elements (generally sugar syrup), water to adjust the desired alcohol content, and sometimes colorings are added.
It is important to note that the term "liqueur" is sometimes mistakenly used to also refer to spirits or brandies, which represent another category of alcoholic beverages. Unlike liqueurs, spirits are obtained through the distillation of fermented products, without the addition of sugar and flavorings during the process.