Getting the Most from Your Cold Brew Concentrate
Cold brew concentrate is one of the most versatile things you can keep in your fridge. One bottle can become a silky iced coffee, a morning smoothie, a cocktail base, or even a secret ingredient in your baking. If you've got a bottle of Kirra Cold Brew 1 Litre concentrate sitting in your fridge, here's how to get every last drop of value from it.
What Is Cold Brew Concentrate?
Cold brew concentrate is brewed at a higher coffee-to-water ratio than a standard cold brew, making it significantly stronger. It's designed to be diluted before drinking — typically 1:1 with water or milk — which gives you more flexibility and more serves per bottle.
Our Kirra Cold Brew 1 Litre is a concentrate crafted using our slow-steep method with Australian specialty beans. One litre gives you approximately 6–8 standard serves depending on your preferred strength.
The Golden Ratio: How to Dilute Cold Brew Concentrate
Getting the dilution right is the key to a great cup. Here are the ratios we recommend:
- 1:1 (concentrate : water or milk) — strong, bold flavour. Great for coffee lovers who like intensity.
- 1:2 — our recommended starting point. Smooth, balanced, and closest to a standard long black strength.
- 1:3 — lighter and more refreshing. Perfect over a big glass of ice on a hot Gold Coast day.
Start at 1:2 and adjust to your taste. There's no wrong answer — it's your coffee, your way.
10 Ways to Use Cold Brew Concentrate
1. Classic Iced Cold Brew
Fill a glass with ice, add 60ml of concentrate, top with 120ml of cold filtered water. Simple, clean, and delicious.
2. Cold Brew Latte
Swap the water for your favourite milk — oat, almond, full cream, or coconut. Add ice and enjoy a café-quality latte at home.
3. Cold Brew with Cold Foam
Pour your diluted cold brew over ice and top with homemade cold foam. Check out our guide on how to make cold brew coffee foam at home for the full method.
4. Kirra Kickstart Smoothie
Blend 60ml concentrate with a frozen banana, 200ml oat milk, a scoop of protein powder, and a handful of ice. A Gold Coast morning in a glass. Full recipe in our Brew Book.
5. Espresso Martini
Cold brew concentrate makes an outstanding espresso martini base. Combine 60ml concentrate, 45ml vodka, 30ml coffee liqueur, and ice in a shaker. Shake hard and strain into a chilled glass. Garnish with three coffee beans.
6. Cold Brew Tonic (Kirra Fizz)
Pour 60ml of concentrate over ice, top with premium tonic water, and add a slice of orange or a sprig of rosemary. Bright, refreshing, and surprisingly sophisticated. See the full Kirra Fizz recipe in our Brew Book.
7. Overnight Oats
Add a tablespoon of cold brew concentrate to your overnight oats mixture for a subtle coffee flavour that pairs beautifully with oats, banana, and honey.
8. Coffee Ice Cubes
Pour diluted cold brew into an ice cube tray and freeze. Use these coffee ice cubes in your next cold brew so it never gets watered down as the ice melts. Game changer.
9. Cold Brew Chocolate Sauce
Stir a tablespoon of concentrate into your chocolate sauce or brownie batter for a mocha depth of flavour. The coffee enhances the chocolate without overpowering it.
How to Store Cold Brew Concentrate
To get the most from your bottle:
- Always refrigerate after opening
- Keep it sealed — exposure to air accelerates oxidation and dulls the flavour
- Use within 7–10 days of opening for the best taste
- Don't freeze the bottle — but do freeze it into coffee ice cubes (see above!)
An unopened bottle of Kirra Cold Brew concentrate will stay fresh until the best-before date printed on the label when stored in the fridge.
1 Litre vs 350ml: Which Should You Choose?
If you're a daily cold brew drinker or love experimenting with recipes, the 1 Litre concentrate is your best value option — more serves, more versatility, and more ways to enjoy it. If you want a ready-to-drink option you can grab and go, our 350ml bottle is perfect straight over ice with no dilution needed.
Not sure which is right for you? We also offer the 1 Litre Box — a great option for stocking up or sharing.
Ready to Stock Up?
Cold brew concentrate is the kind of thing you'll wonder how you lived without once it becomes part of your routine. Whether it's your morning coffee, your afternoon pick-me-up, or the star of your next dinner party cocktail — Kirra Cold Brew has you covered.
Shop Kirra Cold Brew and find your perfect serve.