Liqueur

A liqueur is a spirit that has been sweetened and flavored, and sugar is the defining ingredient. A liquor, in everyday US usage, is the unsweetened spirit itself: vodka, whiskey, gin, rum. Liqueur vs liquor is a question of how much sugar is in the bottle.

What the law requires

In the EU, Regulation 2019/787 defines a liqueur as a spirit drink with at least 15% ABV and at least 100 grams of sugar per litre, expressed as invert sugar, with lower thresholds for a few specific styles. In the US, 27 CFR 5.150 defines cordials and liqueurs as flavored spirits made by mixing or redistilling spirits with fruits, flowers, plants or juices, and requires sugar of at least 2.5% by weight, roughly 25 grams per litre, a quarter of the EU floor. Many real liqueurs are far above both. Curaçao is the standard orange example.

What a liqueur is made from

The base can be neutral spirit, brandy, whiskey or rum, with flavor from fruit peel, herbs, nuts, coffee or cream, added by maceration, redistillation or flavorings. Cointreau is redistilled from orange peels. Baileys is Irish whiskey with cream and emulsifiers. Kahlúa is a coffee extract and sugar mixture.

Types of liqueur

Cream liqueurs add dairy, which is why the allergen list here includes milk. Herbal and bitter liqueurs such as Campari are the dryer end. Fruit and nut liqueurs include Chambord and Frangelico, and orange liqueurs include Grand Marnier. Strength spans roughly 15% to 55%, which matters because lower strength means more sugar per unit of alcohol.

Calories and sugar

Ethanol alone at 40% is about 97 kcal per 1.5 oz pour, and a liqueur adds sugar on top. The site’s measured values for a 1.5 oz pour show the range: Grand Marnier Cordon Rouge at 10.4 g of sugar, Campari at 11.1 g, Chambord at 12.4 g and Kahlúa at 17.3 g, the last from a published 390 g/L. Kahlúa is only 16% ABV, so most of its roughly 108 calories come from sugar rather than alcohol. A cocktail built on two liqueurs can contain 25 to 35 grams of sugar before any mixer is added. Ranking by brand is at healthiest liqueur.

Hangover profile

Liqueurs rate 7 out of 10 on the hangover index here. Congeners are moderate and histamines low, so the load is mostly sugar and additives: artificial flavoring, colors, caramel, dairy and emulsifiers. The sugar crash can feel like a hangover on its own, and the lower strength tempts people to drink more volume. A neat 40% orange liqueur is a smaller dose of sugar than a 17% cream.