Do you need a coffee maker for iced pour-over and cold brew?

No coffee maker is required for the three main iced coffee methods. Ice pour-over, cold brew and ice drip all work with a dripper, a jar or a filter. The real problem is concentration: melting ice dilutes the cup, so the coffee-to-liquid ratio has to be recalculated rather than copied from hot brewing.

For ice pour-over, target 1:15 for grounds against coffee liquid plus ice. With 15g of grounds, the final liquid should reach 225g; brew at 1:10 into about 120g to 125g of coffee, then add 100g to 105g of ice. Cold brew and ice drip follow the same logic, and grind slightly finer than hot pour-over since iced extraction runs faster.

After the summer solstice, iced coffee became the hottest topic in coffee lovers' groups. This article gathers the practical experience of many enthusiasts, focusing on the three mainstream methods of making iced coffee: ice pour-over, cold brew, and ice drip, with emphasis on solving the concentration problem caused by ice dilution. It breaks down in detail the calculation logic of the coffee-to-water ratio, the direction of grind size adjustment, extraction time, and shelf life, among other key points. Whether you prefer floral notes, fruity acidity, or a rich, full-bodied taste, you can find a brewing method and bean recommendation that suits you.

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Once the summer solstice passes, the liveliest topic in coffee lovers' chat groups becomes #HowToMakeDeliciousIcedCoffee, with everyone exchanging their experiences of making iced coffee every day. Front Street has combined some enthusiasts' views and sorted out some tips that can take the flavor of ice pour-over, ice drip, and cold brew coffee to the next level!

/ Ice Pour-Over Coffee /

Making pour-over iced coffee is inseparable from ice cubes, and as the ice cubes melt, they continuously lower the concentration of the coffee. If you still operate according to the 1:15 coffee-to-water ratio for hot pour-over, the final coffee will become noticeably watery and its flavor blurred because of the added ice.

Therefore, when making ice pour-over, the total weight of coffee grounds and (coffee liquid + ice) should be controlled at a 1:15 coffee-to-liquid ratio. For example, if you use 15g of coffee grounds to make ice pour-over, after adding ice, the total amount of coffee liquid should reach 225g (15g grounds × 15 times water).

The coffee-to-water ratio Front Street uses for ice pour-over is 1:10, that is, 15g grounds with 150g water (15g grounds × 10 times water). During the blooming stage, the coffee bed will absorb about 25g–30g of water, and the final coffee liquid obtained is about 120g–125g. Subtract this 120g–125g of coffee liquid from the total weight of 225g, and you can calculate that 100–105g of ice cubes need to be added.

Iced coffee extracts faster than hot pour-over, so the grind size can be adjusted slightly finer (just a little, to allow flavor compounds to be released more quickly). Front Street's recommendation is: for medium-light roasted beans, use a grind size with about an 80% pass rate on a Chinese standard No. 20 sieve; for medium-dark roasted beans, use a grind size with about a 73% pass rate. If your equipment cannot make fine adjustments, then use the hot pour-over grind size and raise the water temperature by 1–2°C for brewing.

"It's too troublesome to calculate all this! I just use stainless steel ice cubes!" An enthusiast shared their own approach—after completing extraction according to hot pour-over parameters, just drop in stainless steel ice cubes to cool it down. Unlike alcohol, coffee concentration can be controlled by adjusting the brewing coffee-to-water ratio, so adding stainless steel ice cubes after brewing is equally feasible. Ice pour-over is quick, easy to operate, and offers a wide range of coffee beans to choose from, so just pick according to personal preference.

For those who prefer floral flavors, Front Street Panama Geisha Coffee is recommended, one of the most expensive coffees in the world; for those who like fresh acidity, Front Street Ethiopia Huakui Coffee Beans are recommended, with notes of black tea and berries; for those pursuing a balanced nutty-caramel taste that is neither sour nor bitter, Front Street Brazil Coffee Beans are recommended; if you have always been fond of the solid, full-bodied style of Indonesian coffee, it is suggested to buy the highest-grade Front Street Golden Mandheling Coffee, which, after multiple rounds of hand sorting, has its defect rate minimized, making the coffee aroma clearer and the sweet aftertaste even better. All the above coffee beans can be ordered at Front Street stores and the Front Street Tmall flagship store.

/ Cold Brew Coffee /

The only drawback of cold brew coffee is that it takes a long time; apart from that, everything about it is why people love it. No technique is needed—a bottle, a bag of beans, one night, and you can drink a full-bodied, rich iced coffee when you wake up. Unlike pour-over, which uses hot water and high-temperature extraction, low-temperature extraction produces far fewer bitter compounds. By extending the extraction time and allowing the coffee grounds to be fully saturated, small-molecule flavor compounds are more easily released, such as floral and fruity notes, so immersion-brewed coffee tastes smoother and richer, with abundant aroma and more easily perceived sweetness. For this reason, when making cold brew coffee, it is recommended to choose varieties with their own floral notes, such as Front Street Huakui, Front Street Panama Geisha, and Front Street Strawberry Candy.

Front Street recommends a coffee-to-water ratio of 1:15 for cold brew coffee. For example: 30g coffee plus 300g room-temperature water and 150g ice cubes, stir evenly, then put it in the refrigerator to steep for 12–24 hours. After extraction is complete, filter out the coffee grounds with filter paper or a fine mesh strainer and it is ready to drink.

One thing to note: the coffee grounds used for cold brew steeping must not be ground too fine! It is recommended that the grind coarseness be about 80–85% passing through a 0.85mm standard sieve. Although low-temperature extraction can reduce bitter compounds, it does not completely eliminate them. When the grind is too fine, after the sour and sweet compounds in the coffee grounds are quickly extracted, the full-bodied compounds will then be released. An appropriate amount of full-bodied compounds can enhance the coffee's body, but once the steeping time is too long, woody flavors will emerge and ruin the coffee's overall cleanliness.

"Make cold brew coffee and drink it after putting it in the fridge for 7 days! Superb!" An enthusiast shared this. Is that really so? Theoretically, the longer cold brew coffee is stored, the stronger the fermented flavor becomes, but when this fermented flavor is too strong, it will cover up the coffee's own taste. For people who do not like too heavy a fermented flavor, Front Street does not recommend trying it lightly. The best time to drink cold brew coffee is 2–3 days after filtering out the grounds, and the storage time is recommended not to exceed 7 days.

/ Ice Drip Coffee /

Ice drip coffee combines drip extraction and low-temperature extraction, and both the equipment and steps are more complex than ice pour-over and cold brew. Ice drip emphasizes extraction by "dripping," and the water flow must always be kept in a dripping state. To achieve the dripping effect, a dedicated ice drip coffee maker is needed. The extracted coffee has a cleaner taste than cold brew, and its flavor layers are more distinct and purer than ice pour-over.

Front Street recommends a coffee-to-water ratio of 1:13 for ice drip coffee. Extract according to the recommended coffee grounds load in the ice drip pot's manual, and extract coffee liquid equal to 13 times the grounds load. For ice drip coffee, it is recommended to use a grind coarseness of about 85% passing through a 0.85mm standard sieve. This way, the extracted ice drip coffee is rich, full-bodied, and layered. It is recommended to use beans with rich fruity notes, such as Front Street Mozart and Front Street Xizhua, to make it.

The ratio of the ice-water mixture used for extraction is 1:1, and the valve controls the flow rate at 7 drops every 10 seconds. The entire extraction process lasts about 6–8 hours. One thing to note here: after ice drip extraction is complete, it needs to be bottled and chilled for 12 hours before drinking. This is because freshly extracted ice drip coffee tastes bland, with only sour and sweet notes and lacking body, so after extraction it should be placed in the refrigerator for 12 hours of low-temperature fermentation, allowing the ice drip coffee to develop a fragrant fermented aroma, and the original flavors will also become richer (provided that the container holding the ice drip coffee must be clean!).

Ice drip coffee is different from cold brew; it does not taste better just because it is left for a couple more days. On the contrary, ice drip coffee stored for more than 5 days will develop a spoiled sour taste and become hard to drink. Therefore, the best time to drink ice drip coffee is within 3 days after 12 hours of low-temperature fermentation, and the storage time is recommended not to exceed 5 days.

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