Introduction:Want to learn how to make a delicate and flavorful cold drip coffee at home? This article provides a detailed breakdown of the cold drip brewing process — from selecting beans and using a 1:6:6 coffee-to-water-to-ice ratio, to adjusting drip rate and cold aging — guiding you step-by-step to master professional-level techniques. It also recommends single-origin beans well-suited for cold drip, such as those with pronounced floral or fruity notes, making it easy for you to create cold drip coffee with refreshing berry or creamy aromas.

Previously, we introduced how to make cold brew. Today, let’s take on the more intricate, time-consuming, yet uniquely flavorful cold drip coffee. Compared to cold brew, the cold drip process is more complex — not only do you need to control the dripping speed, but you also have to patiently wait for the extraction to complete. However, the final product often has more layers of flavor. This article teaches you step-by-step through images and text, helping you adjust the method according to the equipment you already have at home to make your own perfect cold drip coffee.

Preparation includes:a cold drip kettle, room-temperature filtered water, ice cubes, round filter paper designed for cold drip, coffee beans of your preferred flavor, and a clean airtight bottle. This demonstration uses a coffee-to-water-to-ice ratio of 1:6:6 — that is, 50 grams of coffee beans with 300 grams of water and 300 grams of ice. If you don’t have specialized filter paper, you can also use regular pour over filter paper, cutting it to the appropriate size as a substitute.

Choosing the right coffee beans for cold drip is one of the keys. It’s recommended to select beans with fresh floral notes or rich fruity flavors — for example, beans with berry, citrus, or creamy profiles. These types of beans can exhibit more delicate aromas and sweetness during the cold drip process, tasting smooth whether served over ice or not. It’s recommended to try single-origin beans such as strawberry sugar blend, Kenyan, or Yirgacheffe — these often feature bright acidity and floral-fruity notes, making them ideal for long, low-temperature extraction.

Step one: First, grind the selected coffee beans to a coarseness suitable for cold drip, roughly similar to the grind size used for iced pour over. If you’re using a grinder like the EK43s, you can adjust it to around the 9 setting. Taking the ‘Strawberry Sugar’ beans used in this demonstration as an example — a blend of Costa Rican and Panamanian beans with an aroma profile of rose, raisin, cream, and berries — they’re well-suited to showcase the multi-layered flavors of cold drip.

Step two: Place a round filter paper at the bottom of the powder bowl in the cold drip kettle. Lightly wet it with room-temperature water first. This helps ensure the coffee grounds distribute evenly later and prevents filtering dead zones. Then, pour the ground coffee into the powder bowl, spreading it gently to ensure an even thickness and avoiding uneven filtration in certain areas.

Step three: Cover the coffee grounds with another layer of filter paper, and lightly wet the entire coffee layer with room-temperature water. This step is very important — it ensures all the coffee grounds are evenly moistened, not only speeding up the initial extraction but also preventing channeling effects, resulting in more stable dripping later. Be sure to let the water fully penetrate all parts of the coffee grounds, not just wetting the surface.

Step four: Prepare the ice cubes and room-temperature water. First, place the ice cubes into the upper chamber of the cold drip kettle that contains the drip speed valve, then slowly pour in the room-temperature water. Note: be sure to close the drip speed valve before pouring the water to avoid high-pressure water directly hitting the coffee grounds, which can lead to over-extraction or uneven extraction.

Step five: Adjust the drip speed valve to achieve a dripping rate of about 7 drops per 10 seconds. This speed helps steadily and thoroughly extract the aromatic compounds and balanced acidity-sweetness from the coffee. The dripping process may take several hours. It’s recommended to occasionally check whether the drip rate remains stable to avoid affecting overall extraction due to changes in water volume or valve loosening.

Step six: Once all the water and ice cubes have completely dripped through, transfer the extracted coffee liquid into a prepared airtight bottle and refrigerate it for at least 8 hours. This refrigeration period aids in flavor maturation and sedimentation. Remember, it must be refrigerated, not frozen, to avoid affecting taste and quality.

Step seven: After a long wait, you can finally enjoy this cup of handcrafted cold drip coffee！ When pouring, you can add ice cubes according to your personal preference — this not only cools the coffee but also highlights a fresher layered taste. This coffee typically features low acidity, smoothness, and subtle fruity and sweet notes, making it highly suitable for hot days or coffee lovers who enjoy delicate flavors.

The above content is compiled by CoffeeHunters, a coffee news website.