Which boutique coffee beans are suitable for making cold iced coffee the difference between cold extracted coffee and American coffee

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Front Street, whether Guangzhou Dongshankou stores or online Taobao shops, offer more than 40 different coffee beans, including single-item coffee beans and Italian blended beans, many friends enjoy a cup of coffee in the front street, but also buy a few bags of coffee beans back. Some friends will make cold extract at home, they will ask what coffee beans are suitable for making cold extract coffee, in fact, what types of coffee beans are suitable for making cold extract coffee, coffee beans made from different producing areas will have different flavor performance.

cold brew

Cold coffee is made by soaking coffee powder in water at low temperature and filtering it. This sounds quite laborious coffee, in fact, it is much simpler to make than imagined. When making cold coffee at home, you can soak the coffee powder in cold water, soak it in the refrigerator overnight, and finally filter it with filter paper.

Cold extraction coffee extraction temperature is not as high as hot coffee, it is not easy to extract the miscellaneous flavor, bitter taste, so cold extraction method will be the bean processing method and roasting degree faithfully reflected in the performance of flavor, so choose any processing method or roasting degree of coffee beans can be. Although cold coffee is stored in a cold refrigerator, the flavor of small molecules such as flowers will be less obvious as the storage time increases.

Origin of Cold Coffee

Many people know that cold extract coffee should be because of Starbucks, but cold extract coffee is not the first Starbucks, but Starbucks did promote cold extract coffee, so that more people like cold extract coffee.

The earliest cold coffee is said to be invented by the Dutch. In the 1600s, due to the inability to drink hot coffee at sea, the crew could only soak the coffee powder with cold water and found it tasted good. Cold espresso was popular in western countries, especially by the mid-19th century, and spread all over the world, from Britain to Japan to the United States, with a variety of cold espresso coffee, especially popular with the military.

By the 1960s Todd Simpson was traveling in Peru, tasting Peruvian cold coffee and falling for it. Soon after, he designed and released the Toddy Cold Brewing System, which is now world-famous. Starbucks is using the Toddy Cold System and bringing cold coffee to the world.

Principles of Cold Coffee with Snacks

If afternoon tea wants to match snacks, whether it is light, medium or deep roast cold coffee beans, with milk or cream flavor dessert or nut dessert is a good choice, such as: cheese cake, cookies or chocolate can be, on the one hand, milk products and coffee are very good, on the other hand, dessert eat more often will be a little greasy feeling, such as a cup of cold coffee with a refreshing taste will be very suitable.

Cold coffee beans from Qianjie

This time, Qianjie Coffee made a total of 10 kinds of coffee beans cold extract package.

Cold extraction coffee making method

Qianjie recommends using wide-mouthed cups or bottles with lids for extraction.

1. Take out the coffee cold-extract pack and pick up the rope.

2. Put it into a cup/bottle. It is recommended to extract at a ratio of 1:10 per package (10g for a cold extraction package and 100g for cold water, which is the ratio that can be drunk directly after extraction). If you want to add milk, coconut milk and other liquids to mix, you can extract at a ratio of 1:6 (10g for a cold extraction package and 60g for cold water, which is the ratio of coffee solution to other drinks after extraction).

3. Cover, shake, and refrigerate for 8-12 hours to allow coffee powder to fully contact cold water.

4. After the cold extraction is completed, take out the cold extraction package and enjoy it.

What is the difference between cold coffee and American coffee?

Cold coffee and American coffee have one thing in common, that is, they are both infused coffee, but they only use the same extraction method, and the specific extraction operation is also very different.

American coffee is made by espresso machine high pressure high temperature extract coffee liquid, poured into a cup filled with ice water, American coffee is finished. Cold coffee is much more friendly to the people, do not need expensive Italian coffee machine, even different grinder, buy fresh ground coffee powder, put into the filter bag sealed, soaked in ice water, placed in the refrigerator for about 12 hours, cold coffee is finished. Is it simple and cheap, easy to do at home?

How does soda make a difference in cold coffee?

The front street test soda water made out of cold extract coffee effect, at the same time set up a group of purified water to make cold extract coffee for horizontal comparison.

Coffee beans selected from the front street coffee Ye Jia Xue Fei fruit Ding cooperative, this is a washed beans, flavor is berry, citrus and other fruit tone-based, with a light white flower fragrance. Very suitable for cold extraction.

The test parameters are as follows:

coffee beans

Yejia Shefei Fruit Dingding Cooperative

powder quantity

30g

water-powder ratio

1：10

aggressiveness number

Slightly coarser than hand flushing (No. 20 standard sieve pass rate 65%)

immersion duration

13 hours

Water quality (variable)

Purified water/soda

[Experimental procedures]

1. Put two 30g coffee powder into two containers, pour 300ml of purified water into one container and 300ml of soda water into the other container.

2. Stir with a wooden stick for 5 seconds to fully soak the coffee powder, seal it with a lid, and put it into the refrigerator for low temperature extraction.

After stirring for 3 minutes, it can be seen that the coffee powder soaked in purified water has sunk to the bottom of the bottle, while the coffee powder soaked in soda water is attached to the surface, and there are many bubbles rising on the glass wall.

3. After 13 hours, take out the cold extraction container from the refrigerator and observe the powder layer state of the two bottles. They have sunk to the bottom of the container. The soda cold extraction can no longer be seen by the naked eye.

4. Filter out the coffee with filter paper.

[Concentration Comparison]

The concentration of purified water cold extraction: 1.94%

The concentration of soda water cold extraction: 2.36%

[Why is the concentration of soda water cold extract higher than pure water?]

The reason lies in the bubbles of soda water. Before being put into the refrigerator, the coffee powder extracted by soda water floats in the upper layer. After the bubbles rise and "hit" the coffee powder, after 13 hours, it is taken out of the refrigerator. The coffee powder has sunk to the bottom of the bottle. The coffee powder moves from top to bottom in the process of soaking. The coffee powder is more likely to be extracted. The purified water cold extraction coffee powder is always static and sinks at the bottom of the bottle. The efficiency of extracting substances is relatively slow. So the concentration of soda cold extract will be higher.

[Flavor Comparison]

Purified water cold extract Ye Jia Xue Fei has a light floral and berry aroma, drink refreshing citrus acid, cool healing.

Soda cold extract Ye Jia Xue Fei smells more intense berry fruit, although the observation coffee liquid has no bubbles, but drink it will have the feeling of bubbles colliding in the mouth, the taste of sour and sour feeling is not prominent enough.

[Flavor change after 5 hours of re-chilling]

Purified water cold extract Ye Jia Xue Fei berry aroma more prominent, drink is still so refreshing citrus acid.

After 5 hours of low-temperature fermentation, the bubble feeling is almost gone. It has the sweet feeling of mature tropical fruit, and the "bitter" feeling of soda still exists at the end.

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