How to Make Café au Lait with a Clever Dripper
Use 23g of ground coffee and 120g of water at approximately 96°C in a Clever Dripper. Steep for 3 minutes, drain, then pour the extracted coffee back through the grounds for a second pass to concentrate the brew. For iced, combine 60 to 70g of the concentrate with about 140g of cold milk over ice; for hot, stir the concentrate into about 150g of warmed milk.
A café au lait built on a double-pass Clever Dripper extraction that produces enough concentration to hold its own against milk. The method is designed for home brewers: steep, drain, re-pass through the grounds, then combine the concentrated brew with cold or warm milk.
Ratio
1:5.2
23g coffee · 120g water
Water
96 °C
Stated as approximate in the source
Total time
about 6 to 7 minutes
Includes 3-minute steep, two drain passes of roughly 1 minute each, and quick assembly
What you need
- Clever Dripper
- paper filter sized for the dripper
- kettle
- kitchen scale
- timer
- two servers or cups for the double-pass transfer
- spoon
- serving glass or cup
Method
- 0:00
Place a paper filter in the Clever Dripper, add 23g of ground coffee, and set it on a scale.
A medium-dark roast is recommended; its body, sweetness, and chocolate-like nuances hold up against milk where lighter roasts often cannot.
- 0:00
Pour 120g of water at approximately 96°C evenly over the coffee grounds to saturate them fully.
- 1:00
At the 1-minute mark, stir the coffee bed thoroughly with a spoon to break up any dry pockets and ensure even extraction.
- 3:00
At 3 minutes total, place the Clever Dripper on the first server or cup and let it drain. Allow about 1 minute for the brew to flow through completely.
Keep a second server or empty cup close by so you can move the dripper the moment draining finishes.
- 4:00
Move the dripper onto the second server, then pour all of the drained coffee from the first server back into the dripper for a second pass through the grounds.
Expert tipThis double-pass is the core of the recipe — running the brew through the grounds twice raises concentration significantly, which is what allows the coffee flavor to remain present in milk.
Allow the second pass to drain fully into the second server. You should end up with approximately 60 to 70g of concentrated brew.
If the coffee slows or stops flowing, gently shake the dripper while it sits on the cup to restart the flow.
For iced: fill a glass with ice, pour in approximately 140g of cold milk, then pour the concentrated coffee directly into the cold milk rather than onto the ice. Stir well.
Pouring into cold milk instead of onto bare ice reduces the thermal shock that accelerates melting and dilutes the drink.
Expert tipFor even less dilution, allow the concentrated brew to cool for a few minutes before combining.
For hot: warm approximately 150g of milk in a microwave or on the stovetop until steaming, pour in the concentrated coffee, and stir to combine.
Watch it done
The source videos we studied to build this method.
▸ Trimmed to the recipe steps (2:38–4:47)
Jung In-seong of @lullcoffee walks through the full double-pass Clever Dripper extraction and assembles both iced and hot café au lait with exact gram quantities.
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Why this works
Running the already-brewed coffee back through the saturated grounds a second time raises the total dissolved solids well beyond a standard single-pass immersion brew, giving the concentrate the strength to stand up to a meaningful volume of milk. A medium-dark roast contributes body, sweetness, and chocolate-forward character that persist through dilution in ways a lighter roast typically cannot. For the iced version, pouring the concentrate into cold milk rather than onto bare ice minimizes the temperature delta that drives rapid melting, preserving the coffee-to-milk ratio in the glass. Together these two choices — double-pass concentration and controlled milk addition — directly address the most common complaint about café au lait, which is that the coffee flavor disappears.
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Where beginners go wrong
- 1
Coffee stops flowing during the second pass
Gently shake the Clever Dripper while it rests on the cup; this breaks any surface tension in the saturated filter and grounds and restores the flow without disturbing the extraction.
- 2
Finished drink tastes weak or watery
Confirm the double-pass step was completed — a single pass through the Clever Dripper usually does not produce enough concentration for a milk drink. Also switch to a medium-dark or darker roast if currently using a light roast, as lighter roasts tend to disappear in milk.
- 3
Iced version becomes diluted too quickly
Add cold milk to the glass before pouring in the coffee, and pour the coffee into the milk rather than directly onto the ice. If time allows, cool the hot concentrate for a few minutes first so it does not melt the ice as rapidly on contact.
- 4
Coffee grounds are not evenly extracted
The 1-minute stir is essential — any dry grounds on the surface before stirring will be under-extracted and produce a thinner, less balanced brew. Stir until the entire bed is visibly wet and even.
What you should taste
Sweet with chocolate-like nuances; the coffee maintains a clear, rounded presence against the milk rather than tasting diluted or flat.
FAQ
Can I skip the double-pass step?
You can brew with a single pass, but the resulting coffee will typically lack the concentration needed to hold its flavor against milk. The double-pass is the central technique that makes this recipe produce a satisfying café au lait rather than a watery one.
What roast level works best for café au lait?
The source recommends a medium-dark or darker roast. A roast in that range brings enough body, sweetness, and chocolatey depth to stay perceptible in milk; lighter roasts often get overwhelmed and produce a drink that tastes primarily of milk.
What is a Clever Dripper and how does it work?
A Clever Dripper is an immersion brewing device with a valve at the base. You place a filter inside, add ground coffee, pour hot water, and allow it to steep. When you set the dripper on a cup or server, the valve opens automatically and the brew drains through the filter — no technique or pouring skill required.
Method adapted from @lullcoffee's video.
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