How to Make Cold Drip Coffee at Home

If you’ve ever paid a premium for a glass of cold drip coffee and wondered why it takes hours to make, the answer lies in the process. Unlike hot brewing or even immersion cold brew, cold drip uses time, cold water, and gravity to extract coffee slowly and gently—resulting in a cleaner, sweeter cup without bitterness or acidity.

To make cold drip coffee at home, you’ll need about 10–12g of very finely ground coffee per person, 120cc of cold water (with optional ice), and around 8–10 hours of dripping time at a rate of 40–60 drops per minute. The key is slow, controlled extraction over many hours.

What Is Cold Drip Coffee?

Cold drip coffee—also called ice drip or ice brew coffee—is a method where cold or iced water slowly drips through coffee grounds, extracting flavour over several hours. This slow, low-temperature process results in a clear, smooth brew with little to no bitterness. The technique originated in the Netherlands and is known for producing a rich, sweet cup with complex flavours.

Why Use Slow, Cold Extraction?

The cold drip method avoids the high temperatures that can extract harsh compounds like tannins and excessive bitterness. Instead, cold water gently draws out the coffee’s more delicate acids and sugars. This leads to a cleaner, less acidic, and often sweeter cup. The extended contact time—typically 8 to 10 hours—ensures full saturation of the grounds and a more even extraction overall.

How to Make Cold Drip Coffee Step by Step

Step 1: Prepare Your Equipment

Use a standard 3–4 tier cold drip tower (commonly made of glass and wood). Before starting, rinse all glass parts and the cloth filter thoroughly with water.

Step 2: Set Up the Filter and Coffee Grounds

Wet your cloth filter and place it in the coffee grounds chamber. Add 10–12g of very finely ground coffee per serving. Then place a single 6-number pill-type filter paper (specific to cold drip brewers) on top of the coffee grounds, directly under where the water will drip.

Step 3: Add Water and Adjust the Drip Rate

Pour about 120cc of cold water per person into the top water chamber—you can add ice to make it colder. Close the drip valve at first, then open it just enough to start a slow drip. Aim for a steady rate of 40–60 drops per minute. Check and adjust the valve every 2 hours to maintain speed.

Step 4: Let It Drip

Allow the water to slowly pass through the coffee grounds and filter, dripping into the bottom container. The entire process should take roughly 8 to 10 hours. The result will be a clear, amber-coloured coffee with a smooth, sweet profile.

Cold Drip Coffee Tips and Warnings

Always clean all glassware and filters before and after use. The pill-type filter paper is single-use and must be discarded after brewing. The cloth filter can be washed and reused if it remains undamaged and odour-free. Avoid reusing filters or neglecting cleaned equipment, as this can affect taste and hygiene.

Frequently Asked Questions

What is the ideal drip rate for cold drip coffee?

The recommended drip rate is 40–60 drops per minute. This slow speed ensures proper extraction over the typical 8–10 hour brew time. Adjust the valve every 2 hours to maintain consistency.

How much coffee and water should I use per person?

Use 10–12g of very finely ground coffee and 120cc of cold water (you can add ice) per serving. This ratio helps achieve a balanced and smooth cold drip brew.

Can I use regular grind size for cold drip coffee?

No, you should use a very fine grind—comparable to espresso—to ensure proper extraction during the long drip process. A coarse grind may under-extract and result in weak flavour.

How long does cold drip coffee take to make?

The full brewing process typically takes 8 to 10 hours. The slow extraction is essential for developing the coffee’s clean, sweet profile without bitterness.

Do I need special equipment to make cold drip coffee?

Yes, a 3–4 tier cold drip tower (glass and wood) is commonly used. It allows for controlled dripping and separation of water, coffee grounds, and brewed coffee.

Is cold drip coffee less acidic than regular cold brew?

Yes, because cold drip uses cold water and a slower extraction process, it tends to produce a smoother, less acidic cup compared to many immersion-style cold brews.

Recommended FrontStreet Beans for Cold Drip

For cold drip, FrontStreet Coffee recommends Ethiopia Huakui for its creamy strawberry and sweet black tea notes; Kenya Little Tomato for bright berry acidity with lasting sweetness; and Sidra (Sidra) for tropical fruits like passionfruit and grape with a juicy, lingering finish. These beans highlight the clarity and sweetness of cold drip extraction. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.