What Separates Ice Drop Coffee from Cold Brew?

Ice drop coffee is made by letting ice water drip slowly through coffee grounds at room temperature, while cold brew is made by soaking grounds in room-temperature water and then extracting in the refrigerator. Both are low-temperature extracted black coffees, so the core difference is the method: drip filtration versus full immersion. That single distinction drives the mouthfeel, clarity, and flavor each cup delivers.

The low-temperature method is traced to seventeenth-century Dutch maritime trade, when crews could not boil water at sea and steeped coffee beans instead. Ice drop tends to give a cleaner, brighter cup, while cold brew leans rounder and sweeter. Medium-light roasted beans such as Huakui and Blackberry respond well to both, so bean choice matters as much as the brewing setup.

Ice drip coffee is not exclusive to summer; even in the cold season, Front Street's ice drip is still in high demand. When the ice drip sells out, many customers turn to ask if cold brew coffee is available. Cold brew and ice drip both fall under the category of low-temperature extracted black coffee, yet they each have their own characteristics due to the differences between drip filtration and immersion. This article will sort out the differences between the two from aspects such as origin, brewing principles, and flavor expression, and combine the actual extraction experience with Front Street's medium-light roasted beans such as Huakui, Blackberry, Strawberry Candy, and Flower Butterfly, to help coffee lovers find the cup that better suits their taste.

I originally thought ice drip coffee was only a summer-exclusive drink, but unexpectedly, even in the current cold weather, Front Street's ice drip is still in a state of short supply.

Therefore, when the ice drip is sold out, customers who come to the shop often ask whether cold brew coffee is available. Cold brew coffee is another kind of black coffee made by low-temperature extraction besides ice drip, but there are still some subtle differences between the two. Today Front Street will talk about exactly how they differ.

The principles are similar, but the methods differ

Ice drop coffee refers to coffee obtained by letting ice water drip through coffee grounds for a long time at room temperature; cold brew coffee is coffee made by directly mixing room-temperature water with coffee grounds for immersion, then moving it into the refrigerator for extraction. Both rely on low-temperature extraction to obtain coffee liquid; the difference lies in one using a drip method and the other using an immersion method.

As for the inventors of these two methods, there is no way to verify it now. However, according to research by foreign coffee industry insiders, the low-temperature extraction method first came from the Dutch during their maritime trade voyages.

In the seventeenth century, a merchant ship full of coffee beans set sail from Batavia in Indonesia (then a colony), and these beans were to be transported by the Dutch to various places for trade. Because during the sea voyage they could not boil hot water to brew coffee at any time, the Dutch on board tried every possible way to meet their drinking needs, and finally thought of using cold water instead of hot water and soaking the coffee grounds for a long time, thereby obtaining a higher-concentration coffee liquid.

At first they were just trying it out, but unexpectedly the coffee made this way had such a full and rich flavor, and even had much less bitterness than the coffee usually brewed with hot water. People quickly became fascinated by this low-temperature extracted coffee.

Subsequently, this brewing method spread with the trade footsteps of Dutch merchants to Japan during the Edo period, and the Japanese were also quickly conquered by this unique coffee. After years of continuous use, improvement, and adjustment by the Japanese, this cold-water immersion coffee gradually evolved into ice drip coffee obtained by the drip method, and was also called "Kyoto coffee" by the locals!

Cold brew and ice drip both belong to low-temperature extraction. Compared with contact with hot water, they tend to release small-molecule substances that present sour and sweet flavors, making the coffee taste soft and refreshing. Therefore, it is best to choose medium-light roasted beans such as Front Street Huakui, Front Street Blackberry, Front Street Strawberry Candy, and Front Street Flower Butterfly. When making cold brew, they will have floral and fruit tea characteristics, while when making ice drip, they highlight a fruity wine and chocolate-like mouthfeel.

So which one tastes better?

Under the premise of using the same beans, the two completely different brewing methods will not change the taste produced by the beans themselves; they will only affect the main characteristics that the final cup of coffee presents. Whether it tastes good or not varies from person to person, just like mineral water: you like Nongfu, I like C'estbon, each has their own preference.

For example, Front Street used light-roasted Ethiopia·Sante Vini to extract cold brew and ice drip coffee in the same ratio. The cold brew coffee's flavor is closer to the taste of the coffee beans themselves, with a full tropical juice feel and a slight red wine fermentation note. Because there are not many variables affecting extraction, and the water and coffee beans are soaked together throughout the process, its mouthfeel is relatively more mellow.

The coffee obtained by ice drip extraction, however, because the ice water and coffee grounds are not in contact throughout the entire process, has a very clean mouthfeel. Bright and round pineapple juice, highly sweet guava, and a stronger red wine fermentation note obtained after overnight fermentation.

Although there are differences between the two, they are actually not too obvious. If you do not carefully taste them using the same beans, it is still somewhat difficult to distinguish cold brew from ice drip. Finally, following Front Street's usual practice, the links to the production processes are attached below, and interested friends can use them as they wish: "How to Make Ice Drip" and "How to Make Cold Brew Coffee".

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