How to Infuse Spirits with Fruit and Spices

Infusing a spirit is one of the easiest ways to make a drink your own. Ingredients steeped in alcohol give up their flavor quickly because alcohol dissolves both water-soluble and oil-soluble compounds. A jar, a strainer and some patience are all you need for a chile tequila, a vanilla rum or a citrus vodka that tastes brighter than most commercial flavored spirits.

The trick is timing. Some ingredients take minutes, others take days, and almost all of them turn harsh or bitter if left too long. This guide gives working ratios and steeping times for common ingredients, explains how to taste and strain, covers quick infusions with a whipped-cream siphon, and sets out conservative storage advice.

Choosing a base spirit

Vodka at 40 percent ABV is the most neutral canvas and shows off the added flavor most clearly. Blanco tequila takes chiles, citrus and pineapple beautifully. White or lightly aged rum suits vanilla, coconut, spices and tropical fruit. Gin already has its own botanicals, so infusions there work best with complementary flavors such as cucumber, citrus or tea.

Use a mid-priced bottle. Infusion does not hide a harsh spirit, but there is no need to use an expensive aged spirit whose character will be overwritten.

How long common ingredients need

Timing depends on how much flavor an ingredient carries and how finely it is cut. Thin slices and peels infuse faster than whole pieces. These are starting points for about 750 ml of spirit; begin tasting at the low end of each range.

• Hot chiles such as jalapeño or habanero, 1 to 2 sliced: 30 minutes to a few hours; taste often
• Loose black or green tea, 2 tbsp: 30 minutes to 2 hours
• Citrus peel without pith, from 2 to 3 fruits: 1 to 3 days
• Whole coffee beans, about 50 g: about 24 hours
• Cinnamon sticks or star anise, 2 to 3: 1 to 3 days
• Vanilla bean, split: 3 to 7 days
• Fresh berries or stone fruit, 250 to 300 g: 3 to 7 days
• Fresh ginger, 50 g sliced: 1 to 3 days

The basic method

Wash and dry fresh ingredients. Peel citrus with a vegetable peeler, keeping only the colored zest, because pith adds bitterness. Slice chiles, ginger and fruit; split vanilla beans; lightly crack whole spices. Put everything in a clean glass jar, pour in the spirit to cover completely, and seal.

Store the jar at room temperature out of direct sunlight and shake it once a day. Taste a few drops every day, or every hour for fast ingredients like chiles and tea. When the flavor is just where you want it, strain right away.

Straining and finishing

Pour the infusion through a fine-mesh sieve to remove large solids, then through a paper coffee filter for clarity. Fruit infusions can drop sediment for several days; let the bottle settle and decant off the top if needed.

Infused spirits are unsweetened unless you add sugar. For a liqueur-style result, add simple syrup to taste after straining, starting with about 60 to 120 ml (2 to 4 oz) per 750 ml. Adding syrup lowers the alcohol strength, which also shortens how long the result keeps.

Quick infusions with a whipped-cream siphon

A whipped-cream siphon charged with nitrous oxide can infuse a spirit in a few minutes. Pressure drives the liquid into the ingredient; releasing the pressure quickly pulls flavor back out. Put the ingredient and spirit in the siphon, charge with one or two cartridges as the manufacturer directs, swirl, wait a few minutes, then vent quickly with the nozzle pointed into a container.

Always follow the siphon maker's instructions on fill level and number of chargers, and never use a carbon dioxide charger in a whipping siphon unless it is designed for it. Rapid infusion suits herbs, citrus and spices; it extracts less from dense fruit.

Storage and safety

Once solids are strained out, a full-strength infused spirit is stable. Store it sealed, away from light and heat. Flavors fade over months, especially citrus and herbs, so infuse in amounts you will use. Keep infusions made with fresh fruit or that have been sweetened in the refrigerator and use them within a few weeks; discard any that turn cloudy, smell off or show mold.

Infuse only into spirits. Do not try to make flavored oils with fresh garlic or herbs at home, and do not seal fruit and sugar in bottles to ferment. An infused spirit is just as strong as the base bottle; drink responsibly, only if you are of legal drinking age, and never before driving.

Common questions

Why does my infusion taste bitter?

It probably steeped too long, or included citrus pith, seeds or stems. Strain sooner, peel only the colored zest and remove seeds and stems before infusing.

Can I reuse the fruit after infusing?

Infused fruit has absorbed alcohol and lost much of its flavor. Some people use it in adult desserts, but it is not suitable for children or anyone avoiding alcohol.

Do I need to refrigerate infused vodka?

Strained infusions of peels, spices or tea keep well in a cool cupboard. Refrigerate fresh-fruit or sweetened infusions and use them within a few weeks.