Iced American coffee ice hand cold extracted coffee flavor description good taste iced coffee which coffee beans are the best

When you go to a coffee shop and order a cup of iced black coffee, you may be asked, "do you want iced coffee, cold extract coffee or iced American coffee?" It doesn't matter if you are confused right away. In front of this article, let's talk about the respective characteristics of these three, and talk about what is cold coffee, what is iced coffee, and what is iced American coffee.

The difference between cold-extracted coffee and ice-dripping coffee

We can regard them as twin brothers. From a technical point of view, cold-extracted coffee and ice-drop coffee belong to a kind of iced coffee, but the temperature and time of the extraction process are different, which leads to the most intuitive difference between ice-drop coffee and cold-extracted coffee. Cold extracted coffee is made by directly soaking coffee powder in ice water for more than 12 hours. Qianjie is classified as soaking extracted coffee here.

On the other hand, ice drop coffee uses ice water-the falling rate of 7 drops every 10 seconds is filtered by the powder layer, and the front street is classified as drip-filter coffee here. As the two production methods take a long time, this is why the cold extract coffee and ice drop coffee in many coffee shops are limited.

The difference between Cold extracted Coffee and iced American Coffee

In fact, these two ways of making iced coffee are made at different temperatures. Cold coffee is generally soaked in ice water, due to the lower water temperature, the coffee production process is longer, usually more than 12 hours; while ice American coffee is through the espresso machine 9 degrees hot water to extract the essence of coffee through the pressure of 9bar, that is, espresso is poured into one-to-one ice water mixture, the production time is only a few minutes, is a convenient and fast iced coffee.

The taste of ice drop coffee

Ice drop coffee taste mellow while the cleanliness is also very high. Ice drop coffee is that ice water falls on the coffee powder layer, and the coffee extracted by low-temperature water through the coffee powder layer for a long time maximizes the rich flavor molecules in the coffee. However, the coffee liquid after dripping contains carbon dioxide for minutes of coffee, and the ice drop coffee that has just been extracted is tasteless. It needs to be placed in a clean, oil-free, pre-cooled sealed container and placed in the refrigerator for more than 8 hours. When the coffee liquid releases carbon dioxide in the bottle, the pressure can better release the flavor molecules of the coffee.

Cold extract coffee taste

Cold-extracted coffee tastes mellow, but its cleanliness is not as good as ice drop coffee, but the advantage is that it is easy to make. Find a clean container with a lid at home and pour coffee powder into the refrigerator for more than 12 hours and less than 24 hours. After the extraction, we only need to find a filter container to filter out the coffee grounds and enjoy it.

Preservation time of cold extract coffee and ice drop coffee

Even if the sterilized container contains coffee liquid, Qianjie is not recommended to store more than 72 hours of cold storage, after all, low temperature only suppresses bacterial reproduction, can not stop bacterial reproduction.

Iced American coffee taste

The taste of iced American coffee is not as clean as the above two kinds of iced coffee, and the espresso extracted at high temperature will have a sour feeling. Because it is diluted with ice water, and because the espresso machine is different and the flavor of each espresso bean is different, the concentration of coffee cannot be the same every time. Iced American coffee is suitable for those who need to drink iced coffee quickly. After all, slow workers can do fine work.

Does cold coffee have lower acidity?

Rabia A. De Latour, a gastroenterologist and assistant professor of medicine at New York University's Langon School of Health, said it was a common emotion that people who were "very sensitive" to caffeinated or acidic foods could drink cold coffee instead. People who like cold coffee say it tastes smoother than iced coffee, and people who don't like sour taste will find it easier to taste than hot coffee. It is even reported that the titratable acidity of cold-extracted coffee is 67% less than that of hot-extracted coffee. Coffee contains tannin, boiled tannic acid will be decomposed into pyrowu acid, coffee pyrowu acid is easy to change in the cooling process, so that the taste sour, resulting in a sense of bitterness. Cold-extracted coffee only participates in ice water and coffee powder in the whole extraction process, only extracting some small molecular substances, such as flower and fruit flavor substances, while smoking and roasting macromolecular flavor substances are not easy to be extracted. the sour taste will also be reduced a lot. Of course, Qianjie, a friend with a bad stomach, is advised to drink less coffee!

Which one contains more caffeine, cold extract, ice drop or iced American coffee?

What does caffeine content depend on? The amount of caffeine depends on the variety of coffee beans. Arabica coffee beans contain about 0.8% Murray 1.5% caffeine. Robusta caffeine content 1.7% Murray 3%.

Will the baking degree affect the caffeine content of coffee beans? When browsing through the materials, Qianjie saw that coffee practitioners had used the same variety of beans for 25 minutes of roasting for 25 minutes more than 10 years ago, including: very shallow (JQ); shallow (Q); shallow to moderate (QZ); moderate (Z); medium depth (ZS); depth (S); extreme depth (JS); French heavy (FZ). In the changes of various chemical composition, it was found that caffeine did not change much, about 1.4%, whether it was shallow baking or deep baking. The content of Italian concentrated caffeine

Many people believe that a cup of espresso contains more caffeine than a cup of hot drip filter coffee. Actually, this is wrong. Espresso contains 64-75 mg of caffeine per 30 ml, so a single cup of espresso contains less caffeine than a single cup of drip coffee. But espresso is diluted most of the time, so a cup of hot-filtered coffee of the same size contains almost twice as much caffeine.

Caffeine content of cold extract and ice drop coffee

Caffeine can only be fully exerted at high temperature, so caffeine, such as ice droplets and cold extract, can not be fully developed, so the caffeine content of iced American coffee, ice drop and cold extract coffee is actually about the same as beans.

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