Coffee review

Complete solution of cold coffee technology | iced coffee despises the Cold Brew at the top of the chain

Published: 2025-08-21 Author: World Gafei
Last Updated: 2025/08/21, Summer is coming soon, and this is the world of iced coffee again. What, are you still drinking iced American coffee? As soon as summer comes, there is a cup of coffee standing at the top of the chain of iced coffee disdain. From San Francisco to New York, it is a summer favorite of hipster, fashionista and chicken shooters; from Stumptown to Blue Bottle, almost all American boutique coffee manufacturers are green about it.

Summer is coming soon, and this is the world of iced coffee again.

What, are you still drinking iced American coffee?

As soon as summer comes, there is a cup of coffee standing at the top of the chain of iced coffee disdain. From San Francisco to New York, it is a summer favorite of hipster, fashionista and chicken shooters, and it is favored by almost all American boutique coffee companies from Stumptown to Blue Bottle: it is not only soft in the store, but even sealed and sold, occupying the most prominent position in the freezer in a variety of high-end supermarkets.

It's called Cold Brew, cold brewed coffee.

Like the Flat White we introduced you to, I want to write something before it is spoiled by the Green Mermaid family.

Cold coffee, in fact, is not so cold.

I also specially attached 4 good ways to make your own Cold Brew at home! Among them, including how to use earbags to make cold coffee! Well, this article will also teach you to make 3 kinds of cold coffee-based summer iced coffee drinks!

Hot water extraction vs cold extraction of caffeine

The purpose of brewing coffee is to release the flavor hidden in the coffee beans.

Hand-brew coffee, using 92 degrees hot water, in more than two minutes slowly, evenly into the coffee powder. The hot water enters the gap of the coffee powder, and the flavor contained in it is extracted and dripped into the glass pot through the filter paper.

French pressure, let the hot water soak with the coffee powder, stir evenly, wait for four minutes, soak out the beauty, and then use a filter to isolate the coffee grounds.

Extraction with hot water takes only two or three minutes, and if replaced with ice water, longer contact between water and coffee powder is required (about 8-12 hours). At low temperature, the water will slowly extract the pleasant flavor of the coffee, and less bitter, the final coffee is rich, soft, smooth, with a shallow return to sweet.

There are two ways to make cold extracted iced coffee: one is to brew (cold bubble Clod Brew), and the other is to use drops (ice drop Dutch Coffee). Today we will introduce the brewing first.

HOW TO MAKE COLD BREW

All you have to do

Refrigerator | Water | Bean grinder | Electronic scale

Suitable utensils | delicious coffee beans

Water: please choose water that is filtered and contains minerals (Nongfu Spring is the safest)

Bean grinder: need an easy-to-use bean grinder that can be uniformly ground

Electronic scale: do not pay attention to powder-to-water ratio of brewing is playing hooligans!

Coffee beans: Penguin eating and drinking guide coffee beans!

Powder-to-water ratio: generally speaking, when making hot coffee, the powder-to-water ratio is about 1:15. But cold extract coffee, because it will be diluted with ice or milk, we will use more powder. In this way, after being diluted, the taste of the coffee will be strong enough.

Ps: the ratio of powder to water is 1: 5, and then you can dilute it with ice or milk to a suitable concentration according to your preference.

Philharmonic pressure, French pressure and smart cups are all utensils you can use to make cold coffee at hand. If you don't have a bean grinder at home or office, you can hang up your earbag.

Love Le pressure | Aero Press

STEP1: weigh the right amount of coffee beans

STEP2: ground into coffee powder with uniform thickness

The scale is Huijia bean grinder "3".

There are differences in grinding thickness between different brands of bean grinders.

Unable to give a unified value

STEP3: find a container of the right size

Add coffee powder and water in turn, stir well and cover with cling film.

STEP4: put it in the refrigerator and let it stand for 12 hours.

After taking it out, pour the coffee liquid from the top into the Philharmonic pressure.

Remember to add filter paper.

STEP5: pressure ~ ~

Why use another container and then pour the coffee into the Philharmonic pressure?

Because the volume of the Philharmonic pressure itself is a little small, there is no way to soak a lot at a time. If you use another container, you can soak as much as you like, and then use the Philharmonic pressure to filter.

French pressure | French Press

STEP1, STEP2 ditto

STEP3: add coffee powder in turn

Water (up to 300ml can be added)

Stir well and cover with cling film.

STEP4: put it in the refrigerator and let it stand for 12 hours and then take it out.

Press the strainer down and separate the coffee grounds.

Cong Ming Cup | Clever Coffee Dripper

STEP1, STEP2 ditto

STEP3: put the filter paper and then add the coffee powder in turn

Water (up to 300ml can be added)

Stir well and cover with cling film.

STEP4: put it in the refrigerator and let it stand for 12 hours and then take it out.

Put the smart cup on the container and filter out the coffee liquid.

Hanging earbag

STEP1: remove the earbag and throw away the deoxidizer

STEP2: cut off two "ears"

STEP3: put the earbag into a container with water

Cover with cling film and let stand for 12 hours at room temperature.

STEP4: there is no more step four. .

After taking it out, just discard the hanging earbag!

FAQ:

1. Will it be a problem if you stay in it for too long? No, I won't! So feel free to soak

two。 How long can cold bubbles be stored?

It can be frozen in the refrigerator for 3 to 5 days.

But Mr. Cha still suggests drinking it as soon as possible, for fear that the coffee liquid will absorb all kinds of flavors in the refrigerator, and on the other hand, the coffee will slowly oxidize and ferment, losing its "native flavor" and replacing it with a wine-like fermented flavor.

There is no difference between good and bad, but Mr. Cha still prefers the original flavor of coffee, so after it is made, I hope you can drink it as soon as possible!

3. If you drink with ice, isn't it getting lighter and lighter?

It doesn't matter, add cold coffee to the icebox and freeze it with coffee ice cubes instead of ice cubes, so you won't get lighter and lighter.

4. Degree of difficulty: Philharmonic pressure > French pressure = Smart Cup > > hanging earbag

5. What are the characteristics of cold bubbles? That is, the acidity and bitterness are lower than that of hot coffee.

6. What kind of beans are suitable?

If you keep asking this question, it means you should spank your ass. Or new friends, go back to the old articles, there is no such thing as specific beans with specific utensils.

Cold coffee, which is also a great base for drinks, can be prepared according to your preferences.

Well, you can't drink a good "cold iced coffee" just by looking at it! (ps. It is said that the cold extract of the green mermaid is very... ... If you drink it, you will die), you might as well try it yourself!

0