Can hanging coffee style steeping work with fresh fruit?

Cold brew is limited by low temperature and slow steeping, so the main variables are water volume, water temperature, and grind size. Adding fresh fruit alongside the coffee opens another route. Blueberries, grapes, lemon, and peach were each steeped with a separate coffee bean so neither the fruit nor the coffee would dominate the finished drink.

Ten grams of blueberries were paired with a washed Kenya AA, and each remaining fruit got its own matching bean, with steeping method and water quality also taken into account. Documenting each pairing from parameter settings through tasting impressions showed which fruit and bean combinations hold balance and which ones bury the coffee.

As temperatures keep climbing, the call for cold brew coffee is getting louder and louder. The two thresholds of low temperature and slow steeping mean that the variables in cold brew are mainly concentrated in water volume, water temperature, and grind size, so there does not seem to be much room for experimentation. But if fresh fruit and coffee beans are steeped together, could they create an unexpected flavor collision? Front Street paired blueberries, grapes, lemon, and peach with four coffee beans from different origins and carried out a round of practical testing, fully documenting this fruit cold brew experiment from parameter settings to tasting impressions, and then to a summary of the patterns in choosing fruit and beans, in the hope of offering some reference for friends who want to try it at home.

During this period, the temperature has been soaring to the thirties at the slightest provocation, and almost every day readers have been leaving messages in Front Street's back office urging updates on cold brew coffee content, so today let's continue to talk about the topic of cold brew in greater depth.

When it comes to the room for variation in cold brew coffee, it is actually quite limited. With the two premises of low temperature and slow steeping in place, if you want to adjust the flavor, apart from changing coffee beans, what you can alter is basically just the three parameters of water volume, water temperature, and grind size, and in more detail there are also factors such as steeping method (for example, tea-bag style) and water quality. So, is there really no other trick to play with cold brew?

One afternoon, Front Street stared at the pile of fruit left on the table, thinking it would be a pity to throw it away. Since fruit can be used to make tea and coffee can be made into cold brew, then it might as well be worth putting the two together and trying what happens when they are steeped together.

Hands-on stage

In order not to let the coffee flavor of the finished product overpower the fruit flavor, and also to avoid the fruit aroma completely covering the coffee's own flavors, Front Street decided to pair each fruit with a separate coffee bean for steeping. At that time, the fruits on hand were blueberries, grapes, lemon, and peach. After combining them with four beans, the pairing plan was as follows:

10 grams blueberries + Kenya AA washed + (Flavor: cherry tomato, smoked plum, berry flavors) 20 grams grapes + Ethiopia Sidamo natural (Flavor: pink floral, berry, fructose) 2 slices lemon + Colombia Orange Soda (Flavor: orange juice, dried tangerine peel, citrus) 20 grams peach + Costa Rica Strawberry Candy

(Flavor: strawberry jam, raisins, rose)

Cold brew coffee production parameters: Coffee beans: 20 grams Water ratio: 1:10 (200 ml room-temperature water) Grind size: fine granulated sugar (EK43s grind setting 9.5) Steeping time: 12 hours (after filtering, refrigerate for another 2 hours)

Extraction method: after crushing or slicing the fruit, add it directly to the coffee grounds and steep together

Tasting stage

Kenya + blueberry: Bring it close and you can smell a faint blueberry fruit aroma. On the first sip, what you feel most is Kenya's signature smoked plum and dark berry acidity, followed by the fresh sweetness of the blueberries themselves and a caramel-like sweet aftertaste. Although the intense aroma of cherry tomato is somewhat weakened, the overall mouthfeel has both a pleasant richness and a refreshing quality, making it very suitable for drinking in summer.

Natural Sidamo + grape: The cold brew liquid gives off a soft berry aroma. On the palate there is a clear grape juice sensation, accompanied by the fermented aroma unique to natural beans. The texture is clean, sweet and sour, and juicy, with hawthorn and black tea characteristics emerging in the finish. Among the four pots of cold brew, this was the most impressive combination.

Orange Soda + lemon: Before even drinking it, the uplifting fresh fragrance of lemon rushes straight into the nasal cavity, mixed with a slightly special scent reminiscent of lemongrass. But after tasting it, this combination's performance was not ideal. The astringency of citrus peel, a green tea-like note, and the sharp acidity unique to lemon all surged up together, and after swallowing, an unpleasant sour astringency still lingered on the tongue.

(The image is for reference only. Front Street did not steep the lemon and drink it together, haha.)

Strawberry Candy + peach: Because Front Street did not crush the peach, but sliced it and steeped it directly, when the lid was opened only the sweet aroma of strawberry jam could be smelled, and the peach note was not prominent. However, when drinking it, you could sense dried apricot, ripe strawberry, and a slight fermented wine aroma. Compared with regular Strawberry Candy cold brew, this pot, with fresh peach steeped together in it, had a noticeably stronger fruit flavor, and the sweetness was also quite full.

Experience summary

After this round of testing, Front Street believes that if you want fresh fruit and coffee to become a默契 pairing and make a juicy and sweet cup of cold brew, the first thing is to judge whether the fruit is suitable for steeping, and in what way it should be steeped to release good flavor. Take Guangzhou, where Front Street is located, as an example. There are quite a few types of fruit encountered in daily life, but the ones truly suitable for steeping overnight and able to harmonize with coffee flavor are actually not many, mainly concentrated in berries, stone fruits, and tropical fruits.

For example, for berries, you can choose grapes, blueberries, raspberries, and mulberries. When making it, it is best to first crush them with a tool to release juice before steeping. For stone fruits, you can pick peach, apricot, cherry, and so on. Before steeping, try to cut them into thin slices so the fruit flavor is released more easily. For tropical fruits, there are pineapple, lychee, and so on. These are all relatively foolproof types.

The second thing is choosing the coffee beans to pair with them. Considering balance in flavor, Front Street suggests choosing lighter to medium roast beans with a lighter mouthfeel for extraction, so Africa and Central America, which are rich in coffee with floral and fruity notes, are the main targets. For a specific cold brew bean selection guide, everyone can revisit Front Street's past article: "Boss, do you have any cold brew coffee bean recommendations?"

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