Best Cold Brew Makers 2026: Immersion vs Slow Drip

Which cold brew maker should you actually buy in 2026?

As soon as the weather warms up, the same question about cold brew makers 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. The indicative prices below are the September 2026 list prices at Hario Europe, and at a European retailer for the Toddy: in the shops you will often pay a little less.

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Hario Mizudashi 1 L: the smart way into cold brew

The Hario Mizudashi (model MCPN-14, around 31 EUR) is the simplest immersion vessel there is: a heatproof glass carafe, a long polyester mesh strainer that sits in the water, a polypropylene lid. You fill the basket with coarsely ground coffee, add cold water, then lift the strainer out at the end. Hario suggests roughly 8 hours in the fridge; push to 12 or 16 and you get a denser cup, so taste and decide for yourself. 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, and it also comes in a 600 ml size for solo drinkers.

Toddy Cold Brew System: concentrate, at the source

The Toddy Cold Brew System (around 50 EUR) is the historic pioneer of home cold brew. It works in two stages: a BPA free 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 borosilicate glass decanter. Toddy's own home recipe, 340 g of coffee for 1.65 litres of water, works out at a ratio of roughly 1:5. 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: Toddy rates it for about ten brews, or three months, before replacement.

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

The Hario Filter-in Coffee Bottle (model FIC-70, around 41 EUR) is a slim 650 ml glass bottle shaped like a wine bottle, with the filter fixed onto the pouring spout: it slides into the fridge door, travels easily and suits small volumes. Hario puts the steep at around eight hours. Do not mix it up with the 750 ml Filter-in Bottle, which is the tea version. The Hario Cold Brew Coffee Pitcher (around 60 EUR) steps up with a 1 L carafe and a stainless steel strainer, designed for table service. 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 Clear (model WDC-6, around 376 EUR) plays in another league. It is a 45 cm tower: heatproof glass bowls and pot, methacrylate resin stand, stainless steel tap and filter. Cold water falls drop by drop, through an adjustable valve, onto the coffee bed over 3 to 5 hours, depending on the flow you set. The resulting brew, up to 780 ml, 2 to 6 cups, 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.

Where does the taste gap between immersion and slow drip come from?

Immersion (Hario Mizudashi, Toddy, Hario Filter-in and Pitcher) means letting the coffee sit fully submerged in cold water for 8 to 24 hours depending on the ratio you want. The extraction is slow and even, with no heat at all. The result is a round, soft, full-bodied cup that reads as low in acidity, with contained bitterness. That last point deserves a caveat, since the shortcut travels fast: Rao and Fuller, in Scientific Reports in 2018, measured comparable pH values between cold and hot extraction of the same light roast coffees, in a 4.85 to 5.13 range. What drops in the cold is total titratable acidity, not pH. Either way, immersion stays 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.

Which features earn their place in a cold brew maker?

Filter type: this is what sets the texture. The polyester mesh of the Mizudashi and the Filter-in lets through a little oil and a few fines, and gives a rounder cup; the stainless steel strainer of the Cold Brew Pitcher filters much the same way but cleans up faster; the Toddy felt filter gives the cleanest cup of the five. Mesh and steel rinse forever, felt is a consumable 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: heatproof glass (Hario) is taste neutral and holds no smells, but stays fragile. The BPA free plastic of the Toddy bucket copes better with large volumes and handling.

Storage: a slim carafe stands upright in the fridge door, a 30 cm bottle slots in beside it, a Toddy system takes more room but only comes out once a batch.

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.

How do you get a repeatable brew out of the maker you own?

Repeatability comes less from the recipe than from dosing to the vessel. Start from the real usable volume of your maker, not the number on the box, and keep the same markers from one batch to the next:

• Grind: coarse, close to French press. Too fine and it blinds the mesh, clouds the carafe and over extracts.
• Drink ratio: 1:8 to 1:10, so 125 down to 100 g of coffee per litre. On a 1 L Mizudashi that is about 110 g in the basket; on a 650 ml Filter-in, about 70 g.
• Concentrate ratio: 1:5, around 200 g per litre, to dilute later with an equal part of water or milk. This is Toddy territory, one load filling its 1.4 L decanter.
• Time: 8 to 16 hours in the fridge for a ready to drink batch, 12 to 24 hours for a 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. A filtered concentrate holds 7 to 10 days, an already diluted drink 5 to 7.
• Serving: over ice, lengthened with water, milk or a plant drink to taste.

A slow drip tower moves the markers: a 1:5 to 1:6 concentrate ratio, a flow of roughly one drop per second, a total time of 3 to 5 hours, and a bed that is tamped level, otherwise the water carves a channel and the yield collapses.

What do first-time cold brew maker owners get wrong?

• 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 8 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, softer and less acidic on the palate. They are not the same drink.

Frequently asked questions about cold brew makers