Coffee extraction: how to make iced coffee A comparison between cold extraction and hot extraction

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Coffee with ice is called [Japanese iced coffee]. The method is very simple. Hot water is extracted and ice is added to let the hot coffee cool quickly, and then it is ready to drink. Cold coffee is very different from hot coffee.

Not only is it almost sour, but the coffee is more round and even alcoholic. Many cafes put cold coffee in bottles of different shapes and put creative labels on it for sale.

▲ coffee is very knowledgeable, and hot and cold extraction is very different.

Thermal extraction

Coffee with ice, also known as "Japanese iced coffee", is very simple: first extract the coffee with hot water, then add ice to drink, let the hot coffee cool instantly and drink immediately!

Cold extraction

Cold-extracted coffee is very different from hot-extracted coffee. Not only does it have almost no sour taste, but it also tastes warmer and more mellow, even with a slightly alcoholic flavor. Many cafes put cold-brewed coffee in specially shaped bottles and label it with a strong sense of design.

The coffee cold extracted by ▲ smells of alcohol.

Ice brewed coffee

The utensils used to make cold-brew coffee look like chemical experiments, using the principle of cold extraction to extract the essence of coffee. Some people call this method cold-drip coffee.

Japanese iced coffee

Ice will melt in brewed coffee, diluting the original flavor of coffee, so it is best to use coffee with strong aroma and strong sour taste. It is also recommended to use exactly the same water as brewing coffee to make ice cubes.

▲ Japanese coffee brewing method is more convenient.

Iced coffee with unmelted ice

You can also use the classic gouache ratio of hand-brewed coffee (12-13 grams of ground coffee powder mixed with 200 milliliters of water) to make iced coffee, as long as you use "plastic ice" (water freezes in sealed plastic and doesn't flow out when melting ice). If you use plastic ice cubes, you won't have the problem of diluting your coffee, but remember to put in enough ice to cool the coffee.