How to Make Ice Drip Coffee at Home

Making great coffee at home doesn’t have to mean pulling espresso shots or perfecting your pour-over technique. If you’ve ever craved a smooth, sweet, low-acid coffee without a machine — and especially during hot weather — ice drip coffee might be your answer. But is it hard to make? Not at all, if you know the right method.

Yes, you can make delicious ice drip coffee at home with just 170g of ground coffee, water, a couple of coffee filters, a 2L cola bottle, a piece of felt, some string, and 14 hours. This slow, cold-water extraction yields a sweet, clean cup with very low acidity — no special equipment required.

What Is Ice Drip Coffee?

Ice drip coffee, also known as Dutch Coffee, originated in Europe and was popularized by the Dutch. Unlike traditional hot brewing, this method involves slowly dripping cold or room-temperature water through ground coffee over a long period — usually 12 to 14 hours. The coffee grounds are fully immersed in water and extracted at low temperatures, which naturally reduces acidity and highlights sweetness.

Why Ice Drip Coffee Tastes Different

The key difference lies in temperature and extraction time. Because the coffee never comes into contact with hot water, the usual extraction of acidic and bitter compounds is minimized. Instead, you get a smoother, naturally sweeter profile with distinct fruit and fermented notes. It’s essentially cold water slowly dissolving the coffee’s soluble flavours over many hours.

What You Need to Make It at Home

• 170g of roasted coffee beans
• 1 piece of felt
• 2 large coffee filter papers
• 1 empty 2L Coca-Cola bottle
• String
• Scissors
• 6 cups (around 1.5L) of clean drinking water
• A glass cup or container to collect the drip

Step-by-Step: Making Ice Drip Coffee at Home

To start, cut off the bottom of your 2L Coca-Cola bottle using scissors. Turn the bottle upside down and place the opening over a clean glass or cup that will collect the brewed coffee.

Next, fold a piece of felt in half and insert it into the bottle’s mouth to act as a filter barrier. In two separate coffee filter papers, measure and place your 170g of freshly ground coffee. Secure each filter with a piece of string so it holds its shape like a little bag. Place both coffee-filled filter bags into the inverted bottle, covering the mouth where the felt is.

Pour six cups of clean, room-temperature water into the bottle so it saturates the coffee bags. Then, leave the setup at room temperature for 14 hours. That’s the full immersion and slow-drip phase where extraction happens naturally.

After 14 hours, remove the cap of the bottle and allow the brewed coffee to slowly drip into the glass cup below. Once it has fully drained, your ice drip coffee is ready to drink. You can serve it chilled, over ice, or even mix it into cocktails.

Flavour Profile & Brewing Notes

The resulting coffee will be sweet, low in acid, and smooth — with complex flavours depending on your coffee choice. Since the method avoids hot water, you avoid extracting overly sharp or bitter notes, making this ideal for lighter or fruitier roasts. The extended extraction time allows more subtle fermentation and sweetness to come through.

Recommended Coffee Beans for Ice Drip

Certain coffees shine with this method. FrontStreet Coffee’s Ethiopia Huakui, made with high-altitude sun-dried beans, develops bright notes of strawberry, guava, and floral tones under cold extraction. Their Kenya Little Tomato, processed with extended washing, brings juicy acidity reminiscent of citrus and tomato-like brightness. For darker profiles, the PWN Golden Mandheling offers cocoa, toast, and dark sugar notes that become rich and smooth when cold-brewed over time. Each brings out unique flavours when given 14 hours to slowly drip.

Frequently Asked Questions

Do I need a special ice drip machine to make this coffee?

No, you don’t need a machine. This guide shows you how to make ice drip coffee using common household items: a 2L cola bottle, scissors, coffee filters, felt, string, and a glass. It’s a manual, low-tech method that anyone can do at home.

How long should I let the coffee drip?

The total brew time is 14 hours. This includes 14 hours of water saturation and slow extraction at room temperature. After that, you may spend a little extra time letting the final drips finish, but the bulk of the brew completes in that window.

Can I use hot water for ice drip coffee?

No. Ice drip coffee relies on cold or room-temperature water. Using hot water defeats the purpose, as it extracts acidity and bitterness — the very flavours you’re trying to avoid. Stick with cool or tepid water for best results.

What grind size should I use for ice drip coffee?

The article does not specify a precise grind size, but typically for slow cold water extraction like this, a medium to medium-coarse grind similar to what you’d use for French press or cold brew is ideal. Avoid too fine a grind, which could over-extract or clog the filter.

How should I store the finished ice drip coffee?

You can store it in the fridge for up to 3–5 days. Serve it chilled, over ice, or mix it into drinks. The flavours remain stable for several days if kept sealed in the refrigerator.

Recommended FrontStreet Beans for Ice Drip Coffee

For ice drip coffee, FrontStreet Coffee’s Ethiopia Huakui offers bright, juicy notes of strawberry, guava, and floral tones from its high-altitude sun-dried processing. The Kenya Little Tomato brings zesty acidity with citrus and tomato-like brightness from its extended washed method. For deeper profiles, PWN Golden Mandheling delivers rich cocoa, toast, and dark sugar notes that turn smooth and sweet under long cold extraction. All three beans respond exceptionally well to the slow, cool drip method. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.