Hario Mizudashi Cold Brew Coffee Pot - 1 Litre

Hario Mizudashi – Simple, Affordable Cold Brew at Home

If you want to make cold brew at home without complicated equipment, the Hario Mizudashi Cold Brew Coffee Pot is one of the simplest ways to get started.

The concept is straightforward: coffee sits inside a reusable mesh strainer, water is added directly to the pot, and the brewer goes into the fridge for approximately eight hours. Remove the strainer when extraction is complete and the same glass pot becomes your serving and storage vessel.

There are no paper filters to replace, no separate brewing chamber and very little technique to learn.

Why Consider the Hario Mizudashi?

The Mizudashi's biggest strength is its simplicity.

Instead of buying a dedicated cold brew system with multiple containers or disposable filters, the Hario combines the brewer, filter and serving pot into one compact design.

It's particularly appealing if you're curious about cold brew but don't want to spend heavily before deciding whether it will become part of your regular coffee routine.

Key Features

• 1,000ml brewed capacity – Hario rates the larger Mizudashi at 1 litre or 8 cups.
• Reusable integrated strainer – The polyester mesh filter keeps most of the coffee grounds contained while allowing the water to circulate through them.
• Heatproof glass pot – The main vessel is made from Hario heatproof glass.
• Approximately 8-hour extraction – Prepare it in the evening and your cold brew can be ready the following morning.
• Simple refrigerator brewing – Once filled, fit the lid and place the complete pot in the fridge.
• Reusable design – There's no need to use a new paper filter for every batch.
• Removable components – The strainer lifts out once brewing is complete, leaving the pot ready for pouring.
• Made in Japan – The current Mizudashi range is manufactured in Japan.

How to Make Cold Brew with the Mizudashi

Hario's instructions for the 1,000ml Mizudashi provide a useful starting recipe:

1. Add 80g of freshly ground coffee to the strainer.
2. Fit the strainer correctly inside the pot.
3. Slowly add water, making sure the coffee grounds become evenly wet.
4. Fit the lid and place the pot in the refrigerator.
5. Allow approximately 8 hours for extraction.
6. Remove the strainer when brewing is complete.
7. Keep the finished coffee refrigerated and serve as required.

Eight hours is a starting point rather than a rule. Hario specifically notes that extraction time can be adjusted according to preference.

What Grind Size Should You Use?

This is an area where generic cold brew advice can be misleading.

Cold brew is frequently associated with very coarse coffee, but Hario's instructions for the Mizudashi recommend a medium-fine grind. According to Hario, grinding too coarsely can reduce extraction and produce weaker coffee, while grinding too finely can allow particles through the mesh.

That's a good starting point, but your grinder and coffee will influence the result. If the finished brew tastes weak, harsh or unbalanced, adjust one variable at a time rather than assuming every cold brew requires the same grind.

What Does Mizudashi Cold Brew Taste Like?

Cold extraction produces a different flavour profile from brewing the same coffee with hot water.

Hario describes the result as full-bodied and mellow. In practice, cold brew is often chosen for its smooth character and because it works particularly well served chilled, over ice or with milk.

Don't assume that cold brew automatically makes every coffee sweet or removes all bitterness and acidity. The beans, roast, grind, coffee-to-water ratio and extraction time still matter.

Is This Cold Brew Concentrate?

Not necessarily.

Using Hario's suggested recipe gives you a straightforward cold-brewed coffee. You can drink it as it is, serve it over ice, add milk or adjust the recipe to suit your preferred strength.

If you specifically want a strong concentrate designed for substantial dilution, you may prefer experimenting with a higher coffee-to-water ratio.

How Long Can You Keep It?

Cold brew is convenient to prepare ahead, but we wouldn't follow the common internet advice that a batch should simply be kept for a week or two.

Hario recommends drinking Mizudashi cold brew within 2–3 days because the coffee will gradually oxidise and its flavour can deteriorate.

For most households, smaller and more frequent batches therefore make more sense than preparing very large quantities far in advance.

Who Is the Hario Mizudashi Best For?

The Mizudashi is particularly worth considering if you:

• want an inexpensive introduction to cold brew;
• prefer a simple brewer with very few components;
• want to prepare coffee overnight;
• regularly drink iced coffee or milk-based cold coffee;
• don't want to keep buying disposable filters;
• want enough capacity to prepare several drinks at once; or
• prefer a brewer that can remain conveniently in the fridge.

Who Should Look Elsewhere?

The Mizudashi isn't the most adjustable or sophisticated cold brew system available.

The reusable mesh also won't produce exactly the same clarity as brewing through a fine paper filter, so people who strongly prefer an exceptionally clean, sediment-free cup may favour another method.

And if you only make a single cold coffee occasionally, the smaller 600ml Mizudashi may make more sense than the 1-litre version.

Cleaning and Everyday Use

One of the attractions of the Mizudashi is that there isn't much to dismantle after brewing.

Remove the strainer, dispose of the coffee grounds and clean the components thoroughly before the next batch.

The filter does contain a relatively fine mesh, so rinsing it promptly rather than allowing used coffee to dry inside it should make routine cleaning easier.

Our Take

The Hario Mizudashi doesn't try to turn cold brew into a complicated brewing ritual – and that's precisely its appeal.

It's a straightforward combination of a glass pot and reusable filter that lets you prepare a generous batch of cold brew in the fridge with very little effort.

There are more elaborate cold brew systems available, but for someone who wants a simple, reusable and relatively inexpensive route into homemade cold brew, the Mizudashi remains an easy product to understand and a practical one to use.

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