What belongs on a cold brew coffee ingredients list?
Cold brew relies on low-temperature immersion rather than heat, so the ingredient list stays short: coffee grounds, water, and ice. Using 50 grams of grounds as the baseline, the ratio is 1:12, meaning 400 milliliters of room-temperature water plus 200 grams of hard ice, for 600 grams of liquid total. Longer steeping softens acidity and bitterness while aroma stays in the liquid.
Grind size matters as much as the ratio. Aim for roughly 85% of the grounds passing a No. 20 standard sieve. Stir the grounds and water together, seal the container, and refrigerate for 12 to 24 hours, then filter through paper and chill the clear liquid about 4 hours before drinking. Bean choice shapes the cup, from washed African fruit acidity to chocolate-caramel medium-dark roasts.
Cold brew coffee, through its low-temperature slow extraction process, presents a soft acidity and bitterness with a full, balanced mouthfeel, and the operational threshold is not high. This article uses 50 grams of coffee grounds as a baseline to explain in detail key parameters such as a 1:12 coffee-to-water ratio, 85% grinding pass rate, and 12-24 hours of refrigeration steeping, and systematically sorts out coffee bean selection ideas for different flavor orientations—from the bright fruit acidity of washed African beans, to the soft sweetness of natural beans, to the vivid aromas of special processing methods, and the chocolate-caramel notes of medium-dark roasts. In addition, it shares advanced ideas such as adding dried flowers like osmanthus and jasmine to enhance flavor, helping coffee lovers make a satisfying chilled cold brew in summer.

Earlier, Front Street published an article about the cold brew coffee-making process, and afterward readers left messages in the background asking what dimensions to consider when choosing beans for cold brew. Since that is the case, today let’s focus on this question.
Cold brew is a low-temperature immersion extraction method. As the extraction time is extended, the types of acidic compounds gradually decrease, so the acidity and bitterness are both much softer when drinking; at the same time, the volatilization of aromatic substances is suppressed, making it easier for the aroma to remain in the liquid, so the overall flavor is fuller and more balanced.
Cold brew coffee is actually not complicated to make and is easy to get started with. Here, 50 grams of coffee grounds is used as the baseline for demonstration: control the grind size to about 85% passing through a No. 20 standard sieve. Put the coffee grounds into a glass container, then pour in 400 milliliters of room-temperature water, then add 200 grams of hard ice cubes (ice and water total 600 grams), for a coffee-to-water ratio of 1:12. Use a stirring rod to let the coffee grounds and water fully contact and mix, then seal it well and put it in the refrigerator.
After letting it sit in the refrigerator for 12 to 24 hours, use filter paper to separate out the coffee grounds, and you will get a clear coffee liquid. Pour the coffee liquid into a clean sealed bottle, continue refrigerating for about 4 hours, and then drink it.
What kind of flavor do you want in a cup of cold brew!
“What kind of flavor coffee do you usually prefer?” This is a question Front Street baristas often ask customers who come to the shop. Then, based on the other person’s taste preference, they choose matching coffee beans to brew, such as floral, fruity, more acidic, high-sweetness, clean, or some specific recognizable aroma, and so on.

Selecting floral and fruity beans
This type of flavor description usually corresponds to light to medium roast coffee beans, and Africa and Central America, which are rich in floral and fruity coffees, naturally become the priority directions to consider.
Bright fruit acidity: If you want cold brew to show this direction, you can give priority to washed coffee beans from Kenya, Ethiopia, and Panama. Washed beans often have a more lifted acidity, and the bright fruit flavors allow the cold brew to still retain plenty of juicy feel. For example, Front Street Kenya Asalia, Front Street Ethiopia Yirgacheffe Gedeb Cooperative, and Front Street Panama Boquete Geisha all belong to this type.
Soft fruit notes: Naturally processed coffee beans have a higher sugar content than washed beans, so the sweetness stands out, the floral aroma is rich, and they have the flavor characteristics of ripe tropical fruit. After a longer cold brew, the floral aroma and fruit notes complement each other, and the fermented note unique to natural beans is further amplified. For example, Front Street Natural Red Cherry, Front Street Natural Huakui, etc.

Selecting beans with vivid flavors
Nowadays, in addition to traditional processing methods, in order to add richer aromas to coffee, various producing regions have also introduced many novel green bean processing methods. These processing techniques can make coffee beans show a certain very vivid flavor, which is relatively friendly to beginners just getting into coffee. If cold brew uses beans with this type of processing method, over time these aromas will develop into a cup of iced coffee with both a full mouthfeel and aroma. These coffee beans are widely distributed across producing regions, so Front Street will list a few relatively representative ones!
Recommended cold brew coffee beans with obvious fruit aroma include: Front Street Costa Rica Mirazu Estate Strawberry Candy Geisha Blend (strawberry, dried fruit), Front Street Costa Rica Blackberry (raisin, floral)
Those with clear floral aroma include: Front Street Panama Butterfly (white floral, citrus, grapefruit), Front Street Colombia Sidra (rose, passion fruit, grape)
Selecting medium-dark roasted beans
For friends who do not really want to drink sweet-and-sour flavors, Front Street suggests choosing beans with a medium-dark or dark roast level. After a longer high-temperature roasting, the acidity of the beans gradually dissipates, ultimately presenting a coffee with caramel, spice, and chocolate flavors.
Medium-dark roast: Medium-dark roasted beans do not completely erase the acidity, and the trace of acidity retained can make the overall mouthfeel of the cold brew appear more balanced. After being made into cold brew, it mainly shows chocolate flavors, and the soft acidity does not seem abrupt within it. For example, Front Street Brazil Queen Estate, Front Street Papua New Guinea Bird of Paradise, Front Street Yunnan · Front Street 2013
Dark roast: If you do not want any acidity at all and only want to enjoy the rich, silky thickness brought by spices and chocolate, then the dark-roasted Front Street Indonesia Front Street PWN Golden Mandheling will be a good choice!

Add appropriately for the perfect finishing touch
After discussing bean selection, let’s share a little variation: when making cold brew, adding a small proportion of osmanthus or jasmine can add a touch of elegant floral fragrance to the cold brew coffee.
Although the range of coffee beans suitable for cold brew is very broad, because it is slowly extracted in a cold-water environment, compared with hot pour-over, its flavor layers are ultimately rather one-dimensional. So creative people thought of adding other ingredients to supplement the coffee with some unique aromas, such as dried flower petals, which are quite popular among many women.
Considering that cold brew has fewer factors that can be adjusted and is in a static steeping state throughout, if you want the fragrant scent to blend into the coffee and bring a touch of freshness, it is best to choose types with obvious floral aroma, such as osmanthus, jasmine, and rose. These three dried flowers are easy to obtain in daily life and are also highly compatible with coffee flavors. However, although these dried flowers are rich in aroma, their taste is rather thin, so it is best to steep them together with light-to-medium roasted coffee beans whose flavor profile points toward floral and fruity notes, so that the two can complement each other.
The above content is compiled by CoffeeHunters, a coffee news website.