Fine coffee learn the difference between ice-brewed coffee and hot coffee with ice

There is an essential difference between ● iced coffee and chilled coffee.

There seems to be a word difference between ice drop (or ice brew) coffee and iced or iced coffee, but the two are essentially different in extraction and should not be confused.

Ice drop (also known as ice brew) coffee is a coffee beverage extracted by soaking in water below 5 degrees Celsius for a long time at a low temperature.

Iced coffee or iced coffee refers to a cold drink coffee that is quickly extracted with hot water and then added with ice or cooled rapidly.

There is a great difference between the two in the way and time of extraction.

1. Hot coffee is made with hot water above 80 degrees Celsius or 85 degrees Celsius Second, it must be extracted quickly, because too slow will cause excessive coffee extraction to cause miscellaneous smell, and the main substance causing miscellaneous smell is tannin, which will be decomposed into pyrosylic acid after boiling, while tannic acid can be easily dissolved and decomposed in hot water. It is the main culprit that causes our coffee to be too bitter, and we generally have to be careful not to extract too much tannin and caffeine. This is the basic common sense that our coffee lovers who have been around for a while know.

2. Ice drop coffee is extracted with a temperature that must be lower than 5 degrees or even close to the freezing point, so the various ingredients contained in the coffee are not easy to extract in ice water, so it is necessary to take the way of fine grinding and slow extraction. 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.

Through the comparison of the two kinds of analysis, you can see that the fundamental difference between hot coffee and ice drop coffee lies in the difference in extraction temperature and the content of the substance in the coffee, rather than in the cold drink or hot drink in the end, hot coffee can certainly be cold drink after ice, and ice drop (or ice brew) coffee can also be heated after heating (experts suggest that it is better to heat it through water to avoid causing foul smell by direct heating).

This is why when you want to order a real Dutch ice drop coffee in a coffee shop or hotel, you not only need to book at least one day in advance, but also its price will be much higher than that of ordinary hot coffee. "who knows the liquid in the cup. Didi is hard", this is also worth us to pay a little more money.

How does ● distinguish between iced coffee and chilled coffee

It is precisely because of this that I often find that baristas in some bad coffee shops or hotels add hot coffee to ice cubes to cool down, pretending to be authentic ice-drop coffee to deceive consumers to make high profits.

In fact, the difference between them is easy to distinguish, there are two ways:

First, after at least dozens of hours of full dripping and fermentation, the real ice drop coffee will have an unspeakable and strange aroma immediately after opening the bottle, which is the kind of aroma that hot coffee absolutely does not have, and this aroma cannot be copied in any other way. Unforgettable. So when you doubt whether it is a real ice drop coffee, ask the barista to bring up the original ice drop coffee without sugar and milk and smell it first.

Second, the taste and feeling, ice drop coffee does not have any astringency, very little caffeine content, taste very clean and refreshing, that is, even drinking a few cups will not have any palpitations or insomnia and other negative effects. Hot coffee with ice only lowers the temperature, but caffeine and tannin are not reduced, and there will be a significant difference in taste and feeling after drinking.

The Origin of ● Ice drop Coffee

On the Indonesian island of Java, which was once a Dutch colony in the 17th century, it is said that the coffee extraction method used here was introduced by Dutch businessmen, so it was named Dutch coffee Dutch Coffee. This kind of coffee drips with ice water for a long time, so it is also called "coldbrew coffee cold" or "water drip coffee".

Ice drop coffee is a coffee that is dripped in ice water for 8-12 hours at room temperature. although the aroma is not strong, it emits a unique aroma, which is not available when extracted with hot water. The biggest advantage of this kind of coffee is that it is quite pure and has no extra flavor, but it can give full play to all the ingredients in the coffee.

There are two ways to extract ice-drop coffee. One is the traditional method that is still used in many parts of Indonesia today-- putting the coffee in a lead bucket and dripping. The other is to use the all-in-one machine to drip (that is, the ice drip kettle we often see in coffee shops, it consists of a glass kettle containing ice water with a drip switch, a glass pot containing coffee powder and connected to a glass serpentine bend, and finally dripping to a glass flask. Using the dripping principle of ice drop coffee utensils, people can not help but think of laboratory tools, the function is good, the appearance also looks quite spectacular, just these can stimulate my curiosity. Ice droplets are made with a variety of tools, but the price is quite high, mainly made and sold by Japanese businessmen.

From this point of view, "coldbrew coffee cold" or "water drip coffee" both refer to the same meaning, and there is no essential difference, just different expressions and names of the same thing.

If there is a difference, I think the term "ice brew" covers a wider scope, which can refer to both ice droplets and cold bubbles.

● Toddy cold bubble pot is the most convenient tool for iced coffee.

Soaking and extracting in ice water is another way to make iced coffee in Java and other parts of Indonesia, called the traditional cold brew. It does not require any technology or organs and is the most natural way to extract coffee.

Todd Simpson, on a business trip to Guatemala in 1962, ordered coffee in a restaurant. However, all that stood in front of him was the black extract liquid in the pot and the hot water that had just been boiled. The clerk poured the hot water into the black liquid and handed it to him. He could not forget the smooth and full-bodied taste of the coffee he drank at that time, so he studied it in depth when he got home. In fact, the coffee-making method he drank was commonly used by the Dutch who settled in Java in the 19th century. He named the tool he invented Toddy. In Seattle Gourmet Coffee and Jean Coffee Beans, the cold-soaked coffee extract used for iced coffee is also a fan of Toddy.

The common point between ice droplets and cold soaks is that coffee liquid is extracted by soaking coffee powder in ice water. the two production methods have their own characteristics, the ice drop method is magnificent and the taste is pure and natural; the cold bubble method is simple and smooth in taste, especially suitable for home and office.

This is a Toddy cold-soaked coffee pot made in Japan. The price is moderate, convenient and quick, and the operation is also very simple. Anyone who does not understand coffee can use it to make refreshing cold brewed coffee. Just put the coffee powder into a filter and insert it into a glass pot, pour in ice water and stir for a few times. Then put it in the refrigerator and store it for 8-10 hours. After the soaking time has reached, take out the filter containing coffee powder. Then also don't forget to keep the iced coffee liquid refrigerated for at least 24 hours (preferably 3 days) and drink as you like. This cold bubble pot is perfect for home and office use, although it doesn't look amazing. But the delicious iced coffee it brews absolutely amazes you. As the saying goes, "people can't be judged by appearance, the sea can't be measured." this is also my most frequently used coffee pot in summer.

Despite the fact that ice-brewed coffee tools are sometimes difficult to find, there are also many convenient ways to make ice-brewed coffee. there are many local and amazing ways to make ice-brewed coffee both at home and abroad, such as using three mineral water bottles of different sizes to make ice-drop coffee. for example, if you already have a handbrew system, you can use it. Take an empty bottle, shake the coffee powder and ice water, seal it, put it in the refrigerator 8-10, remove it, use Melita or Carita cup to filter the coffee grounds and add ice cubes to drink, just as delicious. In addition, the pressure kettle is also very convenient to make ice-brewed coffee, no matter what method is used, as long as it accords with the principle of ice-brewed coffee, their taste is no less than that of regular Dutch curling kettles and Toddy cups.