Cold brew is the cocktail world's favorite coffee format. Here are 5 recipes and the science behind why your base coffee makes all the difference.
Cold brew has become the cocktail world's favorite coffee format: smooth, concentrated, and free from the bitter bite of hot-brewed espresso cooled over ice. Its extended 12-24 hour steep extracts full-bodied flavor without the sharp, sour notes that hot water accelerates. But the quality and acid level of your cold brew base determines everything. High-acid cold brew turns bitter and sharp when mixed with citrus or carbonated elements. A genuinely low acid cold brew made with Puroast stays smooth and rounded even in complex multi-ingredient cocktails.
Cold brew is widely believed to be lower acid than hot coffee. But a 2018 peer-reviewed study in Scientific Reports (Rao and Fuller) found that cold brew pH (4.96-5.13) is statistically the same as hot brew (4.85-5.10). The smoothness you taste in cold brew is the result of different compound extraction at lower temperatures, not lower acidity. For guests with sensitive stomachs, starting with Puroast (pH 5.74-5.82) is the only way to guarantee a genuinely lower-acid cocktail base.
2oz vodka, 1oz Mr. Black Cold Brew Coffee Liqueur, 1.5oz cold brew concentrate, 0.5oz simple syrup optional. Shake all ingredients with ice vigorously for 20 seconds. Double strain into a chilled martini glass. Garnish with 3 espresso beans.
2oz vodka, 1oz Kahlua or Mr. Black, 1oz cold brew concentrate, 1oz heavy cream. Add vodka and coffee liqueur to a rocks glass over ice. Pour cold brew. Float heavy cream over the back of a spoon. Serve layered.
2oz bourbon, 0.5oz cold brew concentrate, 2 dashes Angostura bitters, 0.25oz demerara syrup, orange peel. Stir all ingredients over ice for 30 seconds. Strain into a rocks glass over a large ice cube. Express orange peel and garnish.
1oz gin, 1oz Campari, 1oz sweet vermouth, 0.5oz cold brew concentrate. Stir over ice. Strain into a rocks glass. Garnish with an orange slice.
1.5oz tequila blanco, 1oz cold brew, 0.5oz grapefruit juice, 0.5oz lime juice, splash of soda water, salt rim. Salt rim a highball glass. Add all ingredients except soda water. Add ice, top with soda water. Garnish with grapefruit wedge.
Mr. Black is widely considered the gold standard in cold brew coffee liqueur - far drier and more coffee-forward than Kahlua, with significantly less sugar. Its cold brew base gives it a smooth, chocolatey bitterness perfect for stirred cocktails. For shaken cocktails, Tia Maria offers a slightly sweeter, more vanilla-forward profile. Both pair exceptionally well with Puroast cold brew as a concentrate booster.
Mr. Black is the most coffee-forward and least sweet - ideal for espresso martinis and cold brew old fashioneds. Kahlua is sweeter and better for cream-based cocktails. Tia Maria sits in between with a light vanilla note.
Yes - cold brew concentrate at a 1:4 ratio is ideal for cocktails because it adds deep coffee flavor without diluting the drink.
No - a 2018 peer-reviewed study in Scientific Reports found cold brew and hot brew have statistically the same pH. For a genuinely lower-acid cocktail base, use Puroast coffee (pH 5.74-5.82).
Vodka and bourbon are the most versatile. Vodka amplifies the coffee flavor without adding competing notes. Bourbon adds caramel and vanilla that complement dark roast profiles.
Use a 1:4 coffee-to-water ratio. Steep 18-24 hours in the fridge. Strain through fine mesh and cheesecloth. Store up to 2 weeks refrigerated.
