What are the benefits of cold coffee? How to make cold ice brewed coffee? what kind of coffee beans tastes good?

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

The benefits of cold coffee

The higher the temperature, the more ingredients the coffee dissolves; generally speaking, the optimum water temperature for brewing coffee is between 90.5 and 96 °C, but the water temperature of cold-extracted coffee is much lower than this value. Therefore, in order to get a closer extraction rate, we need to extend the contact time between coffee powder and water.

Although it takes a long time to extract coffee at low temperature, this process can greatly reduce the acidity (acidity) and bitter taste, making the flavor more sweet and mellow. not only that, the low-acidity coffee extracted at low temperature can not only protect the enamel of teeth, but also less harmful to the stomach.

On the other hand, cold-extracted coffee is not sour, but also its shortcomings, how to say, if the bean itself is sour, cold-extracted coffee will be difficult to bring out a complete flavor. In addition, everyone has different preferences for the flavor of coffee, some people just like the sour taste, so people who do not like cold coffee, the most common is to ── it does not taste sour enough.

Leaving aside the acidity of the coffee, at the very least, cold coffee, which is naturally sweet and mellow, is better than coffee that is sour and bitter and forces you to drink it with sugar and milk.

In addition, compared with ordinary hot coffee, many people will say that cold coffee has a lower content of coffine, which is difficult to prove. In fact, there is a lot of data pointing out that cold coffee contains more caffeine than ordinary hot coffee. Yes, it's hard to understand. The amount of caffeine has always been a hot topic. To discuss this issue, first of all, we need to know that there are many factors that affect the solubility of caffeine, not just water temperature or time. In theory, cold water can extract fewer coffee oils and compounds, and of course less caffeine, so cold-extracted coffee is classified as a low-caffeinated drink. However, considering that the extraction time is so long, of course, more caffeine should be dissolved. in fact, the difference between extraction time and temperature is very difficult to calculate finely, and if other factors such as grinding scale are taken into account, it is even more difficult, so there is no final conclusion on the amount of caffeine.

Another advantage of cold coffee is that it is very new, representing a new way and feeling of drinking coffee. You can drink as much as you like, with no limit at all, and no one will tell you how to drink it.

How to make cold coffee

To make cold coffee, you only need to soak the ground coffee in cold water-water at room temperature may be effective, but the cooling effect is better. Just find a glass container with a good seal. Put the coffee powder at the bottom of the container, then pour cold water on the coffee. The recommended coffee-to-water ratio is about 1:8, but you can adjust it flexibly to your taste.

Close the container and let it stand at room temperature for 12-18 hours. You can also put it in the refrigerator, but it takes more time to produce that strong smell and pleasant balance.

Just soak the coffee powder in ice water. The simplest and roughest way is to find a glass jar with a lid, pour coffee powder, and add water at home. After that, close the lid and soak at room temperature for about 12-18 hours. It doesn't matter if it takes a long time. Can also be put in the refrigerator freezer, because the temperature is low, the extraction time is longer, many people recommend about 24 hours. However, the difference in extraction time and temperature makes the taste of coffee different. If you are interested, you can experience it yourself.

If time is up, please filter out the coffee grounds in the brewed coffee. A paper or cloth filter absorbs the extracted coffee oil, so the oily taste of the coffee can be removed, but you can use a metal filter to maintain the aroma.

When the time is up, take it out and use the filter to filter out the coffee grounds. There are many kinds of filters to choose from, but the general metal filter can retain the extracted coffee oil, so the taste will also be a little oily. If you use filter paper or filter cloth, the coffee oil will be absorbed by filter paper or filter cloth, and the taste will be slightly different.

Characteristics of cold-extracted coffee:

-release operation is simple

-more time (12-18 hours, some people say 24 hours in the refrigerator) takes a long time, usually 12-18 hours

-very concentrated, full-bodied wine extraction thoroughly, rich flavor

What kind of beans do you use for cold coffee?

These are personal preferences, specific what beans are not strictly required, as long as they like it. However, Qianjie coffee is recommended to be sun-treated or honey-treated, so that the cold-extracted coffee is sweeter and more popular.

Qianjie coffee will be made with [Hartman] and [Sakuran] so that you can get a cup of cold coffee with strong fermented flavor.