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Cold Brew Tonic

5 from 5 votes

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Cold brew tonic, a recipe with a delightful secret, is a refreshing and nuanced alternative to traditional gin tonic.

Its smooth, rich cold brew base, a mystery waiting to be unraveled, harmonizes beautifully with a spectrum of tonic choices.

This allows for endless variations to suit diverse tastes and occasions, inviting you to explore and share your unique experiences.

Ingredients you need

Cold brew tonic ingredients - cold brew, tonic and a lime slice for garnish.
  • Cubed Ice
  • Cold brew: I opted for a homemade cold brew in a mason jar, but you can also use a concentrate.
  • Tonic – Try playing around with different tonic choices! I went with my all-time fave, Fever-Tree Premium Indian Tonic Water. But you know what? The twist I whipped up with the orange tonic was an absolute game-changer! Give it a shot, and hit me with your favorite version in the comments!
  • Lime slice for garnish

Tonic Options with different Flavor Profiles

  1. Classic Indian Tonic Water: This timeless choice offers a balanced blend of bitterness and sweetness, complementing the rich flavors of coffee without overpowering them.
  2. Citrus Tonic Water: Infused with zesty citrus notes like lemon or orange, this tonic adds a refreshing brightness to your cold brew, enhancing its natural acidity and providing a vibrant contrast.
  3. Ginger Tonic Water: With its warm and spicy undertones, ginger tonic water adds depth and complexity to your cold brew, creating a harmonious fusion of flavors with a hint of exotic flair.
  4. Rosemary Tonic Water: The earthy and aromatic essence of rosemary pairs beautifully with the boldness of coffee, offering a unique herbal twist that tantalizes the taste buds and elevates your cold brew experience.
  5. Elderflower Tonic Water: Delicately floral and subtly sweet, elderflower tonic water brings a touch of elegance to your cold brew, imparting a sophisticated flavor profile that is both refined and refreshing.

Experimenting with these tonic options allows you to customize your cold brew experience and discover exciting new flavor combinations!


Fill your glass with cubed ice.
Fill your glass with cubed ice.
Add cold brew to the glass.
Add cold brew.
Top up with tonic water!
Top up with tonic water.
Garnish with a lime slice.
Garnish with a lime slice.

How To Make Cold Brew and Tonic From Scratch

Step 1: Fill your serving glass with ice cubes. 

Step 2: Pour in the delectable cold brew, leaving some room at the top. 

Step 3: Slowly add tonic to your liking, being mindful of the fizz! Pour it in gently to prevent any overflow. 

Step 4: Garnish your creation with a fresh slice of lime for that extra zing!

Gorgeous cold brew tonic, served in a wine glass.

Barista Tips

  • When brewing coffee, always use filtered water. Unfiltered water can calcify your brewing equipment and give your favorite coffee a funky taste. So opt for filtered whenever possible.
  • For optimal extraction, adjust the grind coarser as the brewing time extends. Cold brew requires an even coarser grind than French press to prevent over-extraction. Grind coffee just before brewing to preserve its aroma and flavor. For a Comandante grinder, set it between 35-40 clicks (70-80 red clicks).


  • Serving glass
  • Cutting board & sharp knife

Frequently Asked Questions About Cold Brew

How long does cold brew coffee last in the fridge?

For optimal quality, it’s recommended to enjoy cold brew within 7 to 10 days of brewing. Store it in an airtight container in the refrigerator to preserve its freshness.

Does cold brew go bad?

Yes, cold brew coffee can spoil if not stored correctly. It can develop off flavors and lose freshness if exposed to air or left unrefrigerated for too long

Gorgeous cold brew tonic, served in a wine glass.

More Recipes and Tips You Might Enjoy:

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Gorgeous cold brew tonic, served in a wine glass.

Cold Brew Tonic Recipe

Discover the perfect balance of smooth cold brew coffee and effervescent tonic water, topped with a slice of zesty lime for a burst of flavor. Refreshing, invigorating, and effortlessly chic!
5 from 5 votes
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Course: Coffee
Cuisine: Global cuisine
Keyword: cold brew, cold brew tonic
Prep Time: 5 minutes
Total Time: 5 minutes
Servings: 1 Serving
Calories: 97kcal


  • Serving glass
  • Sharp knife
  • Cutting board


  • cubed ice for the glass
  • 1 ½ oz Cold Brew
  • Tonic to top off
  • Lime slice for garnish


  • Fill your glass with cubed ice.
    cubed ice
  • Pour in 1 ½ oz Cold Brew.
    1 ½ oz Cold Brew
  • Top off with Tonic and garnish with a Lime slice.
    Tonic, Lime slice
  • Serve immediately and enjoy ice cold.


Serving: 1serving | Calories: 97kcal | Carbohydrates: 25g | Protein: 0.3g | Fat: 0.01g | Monounsaturated Fat: 0.01g | Sodium: 24mg | Potassium: 23mg | Sugar: 24g | Calcium: 6mg | Iron: 0.1mg
Tried this recipe?Let us know how it was!

Food Safety

  • Don’t leave food sitting out at room temperature for extended periods
  • Never leave cooking food and beverages unattended
  • Always have good ventilation when using a gas stove

See more guidelines at USDA.gov.

By on June 25th, 2024
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About Nora

Nora is a full-blown coffee addict, who loves to make and write about everything that is coffee related. She is currently training to be a barista and loves sharing her knowledge.

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10 Comments on “Cold Brew Tonic”

  1. 5 stars
    This cold brew tonic is so delightful and refreshing. The ideal drink when I need a pick me up and something different than a standard iced coffee!

  2. 5 stars
    This was my first time trying this drink, but it won’t be my last. Delicious and refreshing – I loved it!

  3. 5 stars
    Just tried this coffee for the first time, very good! Really wanted a thirst quencher cause it was so hot and this was perfect.

5 from 5 votes

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