Best Cold Brew Makers 2026: Immersion vs Slow Drip

Last updated: June 2026

Our 2026 selection: the best cold brew makers

As soon as the weather warms up, the same question comes back over the counter every year: what should I use to make good cold brew at home? The good news is that you need no machine at all. It all comes down to the vessel, the quality of filtration and the steeping time. Here is our 2026 selection of cold brew makers available in Europe, from the simplest immersion vessel to the countertop slow drip tower, each with a verified indicative price in euros.

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Hario Mizudashi 1 L: the smart way into cold brew

The Hario Mizudashi (25.90 EUR) is the simplest immersion vessel there is: a borosilicate glass carafe, a long fine mesh filter that sits in the water, a food safe plastic lid. You fill the filter with coarsely ground coffee, add cold water, leave it in the fridge for 12 to 16 hours, then lift the filter out. Its slim shape stands upright in the fridge door, and the fine mesh avoids any second filtering. It is the default pick to discover cold brew without spending much.

Toddy Cold Brew System: concentrate, at the source

The Toddy Cold Brew System (49.90 EUR) is the historic pioneer of home cold brew. It works in two stages: a brewing bucket with a felt filter where the coffee steeps in water, then a stopper you pull to let the concentrate flow into the 1.4 L glass decanter. The result is a dense, smooth concentrate to dilute when serving. It is the ideal tool to brew a batch that lasts several days and for anyone who drinks cold brew every summer morning. The felt filter rinses and reuses, but needs replacing periodically.

Hario Filter-in and Cold Brew Pitcher: the filter carafe

The Hario Filter-in Bottle (32.90 EUR) is a slim 650 ml bottle with the filter built into the lid: lay it flat in the fridge door, carry it easily, it suits small volumes and a portable format. The Hario Cold Brew Pitcher (59.90 EUR) steps up with a 1 L filter carafe designed for table service, more refined and more durable. Both remain immersion makers: same principle as the Mizudashi, with a different format and finish.

Hario Water Dripper: the countertop slow drip tower

The Hario Water Dripper (310 EUR) plays in another league. It is a glass and acrylic tower where cold water falls drop by drop, through an adjustable valve, onto the coffee bed over 3 to 5 hours. The resulting concentrate (up to 750 ml) is cleaner, more defined and closer to a cold filter coffee than to an immersion cold brew. It is an investment and a striking countertop object, reserved for anyone chasing maximum aromatic clarity who accepts a more demanding process.

Immersion vs slow drip: the difference in the cup

Immersion (Hario Mizudashi, Toddy, Hario Filter-in and Pitcher) means letting the coffee sit fully submerged in cold water for 12 to 24 hours. The extraction is slow and even, with no heat at all. The result is a round, soft, full-bodied cup with very low acidity and contained bitterness. It is the most forgiving method: zero supervision, few variables, a reliable result every time.

Slow drip (Hario Water Dripper) works differently: cold water falls drop by drop onto a coffee bed, passes through the grounds, then a filter, over 3 to 5 hours. Each drop meets fresh coffee, which produces a more dynamic extraction and a cleaner, more defined cup with better separated flavours, close to a cold filter. In return, slow drip requires a flow setting, more attention, and pricier, more fragile equipment.

In practice: if you want simplicity, body and zero supervision, choose immersion. If you are after aromatic precision, clarity and you enjoy the ritual, lean towards slow drip. Most enthusiasts start with immersion before, perhaps one day, investing in a tower.

What to look for before buying

Filter type: a fine metal mesh (Hario) lets through a little oil and gives a rounder cup; a felt or paper filter (Toddy) produces a cleaner, clearer cup. The metal filter rinses forever; felt and paper are consumables to plan for.

Capacity: 600 to 650 ml for solo on the go use (Filter-in), 1 L for a couple or daily use (Mizudashi, Pitcher), a concentrate system (Toddy) if you brew a multi day batch.

Material: borosilicate glass (Hario) is taste neutral and dishwasher safe, but stays fragile. BPA free plastic (Toddy) is sturdier for large volumes and transport.

Storage: a slim carafe stands upright in the fridge door, a thin bottle lays flat, a Toddy system takes more room but is used less often.

Maintenance: rinse the filter and carafe after each steep, and degrease regularly with dish soap to avoid rancid coffee oils, which give a stale taste.

Base recipe: a cold brew that works every time

Here is the most forgiving method, valid for any immersion maker:

• Grind: coarse, close to French press. Too fine clogs the filter and over extracts (bitterness).
• Drink ratio: 1:8, around 125 g of coffee per litre of cold or room temperature water.
• Concentrate ratio: 1:5, around 200 g per litre, to dilute later with an equal part of water or milk.
• Time: 12 to 16 hours for a balanced drink, up to 24 hours for a denser concentrate. The longer it goes, the more body and bitterness build.
• Filtering: remove the filter or grounds as soon as the steep ends, then keep the carafe sealed in the fridge.
• Serving: over ice, lengthened with water, milk or a plant drink to taste.

For a slow drip tower, aim instead for a 1:5 to 1:6 concentrate ratio, a flow of roughly one drop per second, and a total time of 3 to 5 hours.

Mistakes to avoid

• Grinding too fine: it clogs the filter, clouds the cup and over extracts. Always aim for a coarse French press grind.
• Steeping too long: past 24 hours the coffee turns bitter and astringent. Respect the 12 to 24 hour window for your ratio.
• Leaving the grounds in contact: remove the filter as soon as the steep ends, otherwise extraction continues and unbalances the cup.
• Neglecting cleaning: coffee oils go rancid. Degrease carafe and filter regularly, not just a rinse with water.
• Confusing cold brew and iced coffee: iced coffee is a hot filter poured over ice, bright and tart; cold brew is extracted cold, soft and low in acidity. They are not the same drink.

Frequently asked questions about cold brew makers