How to Make a Cold Brew Coffee with Oat Milk: The Ultimate Dairy-Free Recipe

Cold brew coffee has taken the coffee world by storm, and for good reason. It’s smoother, less acidic, and naturally sweeter than traditional iced coffee. When you pair it with oat milk, you get a creamy, dairy-free drink that rivals any café creation. Whether you’re new to cold brew or a seasoned pro, this guide will show you how to make the perfect cold brew coffee with oat milk at home.

Oat milk is the ideal partner for cold brew because its natural sweetness and velvety texture complement the bold, chocolatey notes of cold brew without overpowering them. Plus, it steams and froths beautifully, making it a barista favourite. In this article, we’ll walk you through everything from choosing the right coffee to selecting the best oat milk for your cold brew. Let’s get brewing.

Why Cold Brew and Oat Milk Are a Perfect Match

Cold brew coffee is made by steeping coarsely ground coffee beans in cold water for 12 to 24 hours. This slow extraction process produces a concentrate that is low in acidity and rich in flavour. Unlike hot-brewed coffee that can turn bitter when iced, cold brew stays smooth and mellow. Adding oat milk to cold brew elevates the experience by introducing a creamy, slightly sweet element that balances the coffee’s natural bitterness.

Oat milk’s neutral flavour profile makes it a versatile choice for coffee drinks. It doesn’t curdle or separate when mixed with cold liquids, which is a common issue with some other plant-based milks. For the best results, choose a barista-grade oat milk that is specifically formulated to foam and blend seamlessly. Our Barista Oat Milk (6-pack) is an excellent option for creating café-quality cold brew at home.

• Cold brew is naturally less acidic, making it gentler on your stomach.
• Oat milk adds a creamy texture without overpowering the coffee flavour.
• Barista oat milk blends perfectly with cold brew concentrate.

How to Make Cold Brew Coffee at Home

Making cold brew at home is surprisingly simple. You’ll need coarsely ground coffee beans, cold or room-temperature filtered water, a large jar or pitcher, and a fine-mesh strainer or cheesecloth. The standard ratio is 1 cup of coffee grounds to 4 cups of water, but you can adjust it to your taste. Combine the grounds and water in your container, stir gently, cover, and let it steep in the refrigerator for 12 to 24 hours.

After steeping, strain the mixture through a fine-mesh sieve lined with a coffee filter or cheesecloth to remove the grounds. The resulting concentrate can be stored in the fridge for up to two weeks. To serve, fill a glass with ice, pour in one part cold brew concentrate and one part water or milk, then stir. For a truly indulgent treat, use oat milk instead of water and add a splash of vanilla syrup.

• Use a coarse grind to avoid over-extraction and bitterness.
• Steep for at least 12 hours for a balanced flavour; 24 hours for a stronger concentrate.
• Store concentrate in an airtight container to maintain freshness.

Choosing the Best Oat Milk for Your Cold Brew

Not all oat milks are created equal when it comes to cold brew. Some are too thin and watery, while others may separate or leave a grainy texture. For the creamiest, most satisfying cold brew, look for oat milk that is specifically labelled as barista edition or extra creamy. These products contain added oils and stabilisers that mimic the mouthfeel of whole milk and blend effortlessly with coffee.

Our Unsweetened Original Oat Milk (6-pack) is a fantastic choice if you prefer a cleaner, less sweet flavour profile. It lets the coffee shine while still adding a silky texture. For families, the Kids Oat Milk (6-pack) offers a slightly sweeter taste that kids love, making it a fun addition to homemade iced coffee treats. Both options are dairy-free, vegan, and free from common allergens.

• Barista oat milk froths best but any creamy oat milk works.
• Unsweetened versions let you control the sweetness of your drink.
• Check the label for added sugars if you’re watching your intake.

Step-by-Step Recipe: Cold Brew Coffee with Oat Milk

Ready to make your own? Here’s a simple recipe that yields one serving of delicious cold brew coffee with oat milk. Start by brewing a batch of cold brew concentrate using the method above. Then, fill a tall glass with ice cubes. Pour 120ml (about ½ cup) of cold brew concentrate over the ice. Add 120ml of your chosen oat milk—try our Unsweetened Original Oat Milk for a balanced flavour.

Stir gently to combine. If you like your coffee a little sweeter, add a teaspoon of maple syrup or vanilla syrup. For a fancy touch, froth a small amount of oat milk and spoon it on top. Garnish with a sprinkle of cinnamon or cocoa powder. This drink is perfect for hot summer mornings or an afternoon pick-me-up. Experiment with different oat milk varieties to find your favourite combination.

• Use a 1:1 ratio of concentrate to oat milk for a balanced drink.
• Add ice first to keep the drink cold without diluting it too quickly.
• Froth a little oat milk for a café-style foam topping.

Tips for the Perfect Oat Milk Cold Brew Every Time

To elevate your cold brew game, keep these pro tips in mind. First, always use fresh, high-quality coffee beans. The flavour of your cold brew depends heavily on the beans you choose. Second, don’t rush the steeping process. Patience pays off with a smoother, more flavourful concentrate. Third, experiment with the ratio of concentrate to oat milk until you find your perfect balance.

If you’re making cold brew for a crowd, consider brewing a larger batch and storing it in the fridge. You can also make coffee ice cubes by freezing leftover cold brew in an ice cube tray. This prevents your drink from getting watery as the ice melts. Finally, don’t forget to enjoy the process. Making cold brew at home is a rewarding ritual that saves you money and gives you complete control over your coffee experience.

• Use filtered water for the best-tasting cold brew.
• Coffee ice cubes keep your drink strong and cold.
• Store your oat milk in the fridge and shake well before using.

Making cold brew coffee with oat milk at home is easier than you think, and the results are absolutely delicious. With a little preparation and the right ingredients, you can enjoy a barista-quality iced coffee any time of day. Whether you prefer a classic unsweetened version or a creamy, indulgent treat, oat milk is the perfect dairy-free companion. Explore our range of oat milk products to find your ideal match and start brewing your new favourite cold brew today.