Cold brew coffee: smooth, bold, refreshing—and surprisingly easy to make at home.
If you’ve ever wondered how to master the art of cold brew without complicated gadgets or barista-level skills, we’ve got good news. With the Hario Mizudashi, making cold brew at home becomes a simple, satisfying ritual that delivers delicious results every single time.
Whether you’re new to the cold brew scene or looking to upgrade your brewing setup, this guide walks you through everything you need to know—from choosing your beans to storing your stock cold brew coffee for days.
Let’s get brewing.
Why Cold Brew Is So Popular (And Delicious)
Unlike iced coffee, which is brewed hot and then chilled, cold brew is made by steeping coffee grounds in cold water for an extended period—usually 18 to 24 hours. The result? A naturally sweeter, less acidic, and smoother cup that’s perfect for sipping over ice, blending into lattes, or even mixing into cocktails.
Cold brew is loved for its:
- Smooth flavour with lower bitterness
- Versatility—enjoy it black, with milk, or as a base for other drinks
- Convenience—make a batch and store it for up to a week
- Caffeine kick—a concentrated brew that’s both energizing and easy to dilute
And when it comes to finding the best cold brew coffee maker, few options match the simplicity and quality of the Hario Mizudashi.
Meet the Hario Mizudashi Cold Brew Coffee Pot
If you're serious about cold brew—or even just curious—the Hario Mizudashi is one of the easiest and most elegant tools to start with.
Key Features:
- Built-in mesh filter—no need for paper filters or extra gear
- Borosilicate glass body—heat-resistant, durable, and stylish
- Slim design—fits easily in your fridge door
- Multiple sizes—choose from 600ml or 1L options
- Japanese design—form meets function in a minimalist, efficient build
It’s a favourite among baristas, home brewers, and casual sippers alike—and for good reason.
What You’ll Need to Make Cold Brew at Home
Before we dive into the step-by-step, here’s what you’ll need:
- Hario Mizudashi Cold Brew Pot
- Freshly ground coffee beans (coarse grind is key)
- Cold or room-temperature filtered water
- A spoon or stirrer
- Time and patience (about 18–24 hours)
That’s it. No fancy equipment, no heat, no complicated processes. Just great coffee, slowly steeped to perfection.
Step-by-Step: How to Make Cold Brew with Hario Mizudashi
Step 1: Choose the Right Coffee Beans
The best cold brew starts with great beans. Look for:
- Medium to dark roast: For deeper, chocolatey notes
- Coarse grind: Similar to raw sugar—this helps with smoother extraction and easier filtering
You can also experiment with light roasts for fruitier, more acidic brews, but darker roasts tend to produce the smoothest results.
Step 2: Measure Your Coffee and Water
A good starting ratio is:
- 1:10 coffee to water by weight (e.g., 60g coffee for 600ml water)
If you like it strong (to dilute later), go with 1:8. If you prefer a lighter brew for sipping straight, 1:12 works well too.
The Hario Mizudashi includes a helpful filter basket—just fill it halfway to two-thirds with coffee grounds, depending on your taste preference and the pot’s size.
Step 3: Add Water and Stir
Once your grounds are in the filter, slowly pour cold or room-temperature filtered water over them. Pour in a circular motion to ensure all grounds are saturated. Then gently stir with a spoon or stirrer to eliminate dry pockets.
Make sure the water level doesn’t exceed the max fill line on the Mizudashi.
Step 4: Steep for 18–24 Hours
Put the lid on your Mizudashi and place it in the refrigerator. Let it steep for at least 18 hours—you can go up to 18 hours for a bolder, more concentrated brew.
Pro tip: The longer you steep, the stronger your cold brew will be. If you’re planning to dilute it with milk or water, aim for the full 18 hours.
Step 5: Remove the Filter and Enjoy
After steeping, simply remove the filter basket from the pot and discard or compost the used grounds.
Your cold brew is ready—no straining or extra cleanup is required.
Serve it over ice, mix it with milk or oat milk, add a splash of vanilla syrup, or enjoy it straight. Store any remaining cold brew in the fridge for up to 5–7 days.
How to Customize Your Cold Brew
Once you’ve mastered the basics, it’s time to get creative.
Try different beans
Single-origin coffees can add fruity, floral, or nutty notes to your brew. Ethiopian and Colombian beans are especially popular for cold brew.
Flavour it up
Add cinnamon sticks, orange peel, vanilla pods, or cardamom to the grounds before brewing for a subtle infusion.
Make cold brew lattes.
Mix your concentrate with equal parts milk or plant-based milk. Add sweetener or syrup if you like it flavoured.
Turn it into a cold brew tonic.
Mix with tonic water and a wedge of lime for a refreshing, fizzy summer drink.
Why the Hario Mizudashi is the Best Cold Brew Coffee Maker
There are lots of DIY cold brew methods out there—mason jars, French presses, cheesecloth filters—but the Hario Mizudashi simplifies the process like no other.
Here’s what sets it apart:
- No mess: The built-in filter makes cleanup a breeze
- No extra gear needed: No paper filters, no presses, no complicated decanters
- Elegant design: Looks great on the table and in your fridge
- Durable & reusable: Made for regular, everyday brewing
- Trusted brand: Hario is a globally respected name in specialty coffee gear
Whether you're just starting out or want a reliable tool for your cold brew at home, the Mizudashi is a worthy addition to your coffee arsenal.
Stocking Up: How Long Does Cold Brew Last?
Once brewed, your cold brew can be stored in the fridge for:
- 5 to 7 days for best flavor
- Up to 10 days if kept sealed and chilled
This makes it a great “brew once, enjoy all week” solution—perfect for busy schedules and effortless mornings.
You can even batch brew and have your own stock cold brew coffee ready for smoothies, lattes, cocktails, and more.
The Perfect Cold Brew, Simplified
- Cold brew is smoother, less acidic, and highly customizable
- The Hario Mizudashi makes brewing cold brew at home incredibly easy
- All you need is coarse coffee, water, and time—no complicated gear
- Brew time: 18 to 24 hours in the fridge
- Stores well for 5–7 days
- It’s the ideal choice for anyone looking for the best cold brew coffee maker
Final Sip: Cold Brew Confidence Starts Here
Cold brew doesn’t have to be complicated. With the Hario Mizudashi, you get barista-level results in the comfort of your home—minus the fuss. Whether you’re brewing for yourself, your family, or your entire cold coffee-loving friend group, this pot makes it easy to enjoy your favourite brew exactly how you like it.
Ready to chill? Grab your beans, fill your Mizudashi, and let time (and great design) do the work.
Because life’s too short for bad coffee—even when it’s cold.
