Would you like to wait for a cup of iced coffee in eight hours? Melt your warm heart bit by bit

Ice drop coffee originated in Europe, because the coffee distiller was invented by the Dutch, so some people call it Dutch Coffee, espresso or water drop coffee.

The principle of ice drop coffee is that the coffee itself is compatible with water and is extracted bit by bit by melting ice. The coffee extracted has different flavor according to the roasting degree, water quantity, water temperature, droplet speed, grinding thickness and other factors.

Ice drop coffee is extracted with a temperature that must be less than 5 degrees Celsius or even close to the freezing point, so the various ingredients in the coffee are not easy to extract in ice water, so it is necessary to grind the coffee powder and extract it slowly. The specific method is to soak the coffee powder in ice water for a long time and extract it at a very slow drip rate. The general standard speed is 1 drop per second, 45-50 drops per minute. It usually takes about 8-12 hours.

Although it takes a long time to wait, its biggest advantage is that the tannic acid we hate most does not decompose at all in cold ice water, and caffeine decomposes a little in ice water, but it is about 90% less than hot water extraction. there are also many other major ingredients in coffee. It is precisely because there is no astringency in the iced coffee and there is little bitterness in the coffee, so the ice-brewed coffee appears to be very pure in taste, which is also a compensation for a long wait.

The fundamental difference between hot coffee and iced coffee lies in the difference in extraction temperature and the content of substances in coffee, rather than cold or hot drinks in the end. Of course, hot coffee can be cold with ice. Ice drop (or ice brew) coffee can also be heated and hot (experts suggest that it is better to heat it through water to avoid causing foul smell by direct heating).

Ice drop coffee uses ice water, cold water or ice cubes to extract coffee, which is very slow and often takes hours, so ice drop coffee is more expensive.

Source: trendy Jiafi