Lightly Roasted Coffee in Cold Brew: Acidity and Caffeine

Cold brew coffee is made by steeping grounds in cold water and filtering, with no machine needed. Its caffeine content can reach roughly three times that of regular coffee: a 200ml cup brewed from 20g of grounds carries about 140mg. Acidity is lower than hot brewed coffee because cold water extracts fewer of the acids that heat draws out.

The slow steep gives the liquid more time to pull compounds from the grounds, which is why the caffeine is higher and the taste smoother than an Americano. Bean choice matters: a lightly roasted coffee keeps more bright, fruity character, while a dark roast pushes toward the bitterness some drinkers mistake for a sour americano. The four stated advantages are caffeine, weight management, lower acidity, and easy brewing.

Cold brew coffee has become a popular choice in coffee shops in recent years; it requires no complicated machine and can be made with just steeping and filtering. Many enthusiasts wonder whether its acidity is on the high side, exactly how much caffeine it contains, and how to filter out the coffee grounds. From Front Street's perspective, this article sorts out the four major advantages of cold brew coffee—richer caffeine, support for weight management, lower acidity, and a low brewing threshold—and shares in detail a coffee-shop-level production process, including bean selection ideas, coffee-to-water ratio, grind setting, and steeping time. The article also uses the popular bean Front Street Mozart as an example to demonstrate every step, from pouring water and refrigerating to separating coffee grounds with filter paper, helping you easily achieve cold brew freedom at home.

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Among the many offerings in a coffee shop, cold brew coffee is the type that requires no coffee machine at all. For many enthusiasts, cold brew coffee almost represents what an ideal cup of coffee should be—effortless to make, while also bringing plenty of advantages. Next, Front Street will lay out its various strengths and how to make it specifically.

1. More caffeine

First, many drinkers care about both coffee flavor and the invigorating power brought by caffeine. If you are looking for a quick wake-up, cold brew coffee is a good choice, because its caffeine content can reach about three times that of regular coffee. For example, when Front Street makes a 200ml cup of cold brew with 20g of grounds, the caffeine is around 140mg.

The reason is that the steeping process is relatively slow, and the liquid has more ample time to extract substances from inside the coffee grounds, which naturally includes the caffeine that keeps people energized.

2. Easier weight management

Cold brew belongs to the black coffee camp; it tastes smoother than Americano and fuller than pour-over, so most palates can accept it. In addition, some studies indicate that caffeine can help the body burn its own calories and has a positive effect on metabolic efficiency. Therefore, drinking a cup of cold brew before exercise can help speed up fat loss progress.

3. Lower acidity

The original meaning of cold brew is: in a low-temperature environment, small-molecule substances tending toward aroma and acidity are more easily released from the coffee; moreover, coffee shops usually prioritize light-roasted beans for making it, such as Front Street Red Cherry, Front Street Strawberry Candy, Front Street Butterfly, etc., so the finished drink tastes light, mainly with sweet-and-sour notes and a juicy feel.

4. The simplest brewing method

Besides the previous three points, one of the most attractive things about cold brew is its method of production. Unlike other methods, it does not require tedious steps and a pile of equipment. As long as you have ingredients, a bottle, and water at home, plus a refrigerator and a tool that can filter out coffee grounds, you can easily achieve caffeine freedom. And precisely because it is not constrained by equipment or space, cold brew can be said to be coffee you can get at will.

How coffee shops make cold brew

The first step is to choose a coffee bean that suits your preferences. If you want the cold brew you drink to be full of juicy character and pleasantly sweet-and-sour, then choose lightly roasted beans. Recommended: Front Street Red Cherry, Front Street Sidamo Alo, Front Street Butterfly;

If you want the cold brew's flavor to be very vivid and very prominent, then you can choose more deeply fermented beans. Recommended: Front Street Xigwa, Front Street Big Belly, Front Street 90+ Eleta Geisha; and if you prefer a somewhat heavier mouthfeel, you can choose medium-dark or dark roasted coffee beans. Recommended: Front Street Queen's Estate, Front Street Huila.

This demonstration uses the recent popularity king—Front Street Mozart coffee beans—to make it. The specific parameters are as follows:

Dose used: 80g

Grind setting: Ek43 setting 9, 85% passing rate on a No. 20 sieve, granulated sugar grind

Coffee-to-water ratio: 1:10 Steeping time: 12 hours Remember to prepare a sealable container! After we grind the coffee beans into grounds, the first thing to do is pour the coffee grounds into the container!

Then pour in the target amount of water! Because Front Street uses 80g of coffee grounds, 800ml of room-temperature water will be poured in.

After pouring the water, stir it a bit to speed up the wetting of the coffee grounds!

Then the bottle can be sealed and put in the refrigerator to chill.

When the steeping time is reached, we can take the coffee out, use filter paper to filter out the coffee grounds, and enjoy delicious cold brew coffee!

The cold brew coffee steeped with Front Street Mozart has a very full juicy feel when drunk, with flavor notes of: grape, berry, wine, and a bit of purple floral aroma similar to lavender.

The above content is compiled by CoffeeHunters, a coffee news website.