How to Enjoy Cold Brew Coffee? How to Ferment Cold Brew Coffee and Ways to Drink Cold Brew Concentrate

A delicious iced coffee may not lift you with aroma the way hot coffee does, but the moment it hits your palate it reveals a cascade of flavors, aromas, and textures that fill the mouth and satisfy the soul. This is not simply iced coffee with ice cubes dropped in, but cold brew extracted slowly with cold or iced water — an approach that upends the usual idea of coffee and lets you enjoy a mellow richness like fine wine alongside a refreshing chill.

Coffee has become a daily necessity for many people, and beyond differences in origin and variety, light versus dark roast, and the many ways of brewing it hot, there is another way to enjoy it: cold brew. On scorching summer days, the fermented aroma and cooling sensation of iced coffee are especially captivating.

Cold brew generally falls into three preparations — water drip, ice drip, and cold brew. The extraction conditions differ, so the flavors and textures differ, but all belong to the cold-brew family. The principle is the same as cold-brewed tea: low temperature and a long steep slowly draw the flavor out of the coffee.

Ice Drip Coffee Pot

The mature flavors of long, cold extraction.

The equipment for ice drip coffee was originally manufactured in the Netherlands, so it is also known as Dutch Coffee, or alternatively Water Drip Coffee or Cold Brew Coffee. For its smooth mouthfeel and long finish, it is very popular among coffee lovers.

Extraction Principle

Unlike coffees extracted with hot water, ice drip coffee is defined by a long extraction time of 3–12 hours using cold water. The result is not drunk straight away; it is placed in an airtight container and refrigerated for 2–5 days to keep maturing, which makes the flavor even smoother. A well-extracted ice drip coffee can offer better texture and aroma than red wine. You can add ice cubes or cold water to taste, and it is also excellent with sugar and milk. This general approach — grounds steeped in cold water for a long time — is favored by many people.

Coffee is extracted by the pressure of water droplets falling from above. Water goes into the upper chamber, grounds are scooped onto the filter paper, and the slow-drip method does the rest. It is important to use a dark roast ground fine. The correct extraction speed is one drop of coffee every 1.5 seconds, which you can adjust with the flow-rate control switch.

Ice drip coffee made with cold water is especially popular in summer. Compared with coffee brewed with hot water, it tastes less acidic and less astringent, and even after long storage its flavor barely changes. Caffeine also only dissolves in water above 75°C, so ice drip coffee extracted with cold water contains almost none, with less bitterness and astringency, and is rich with notes of dark chocolate and smoke.

Ice Drip Coffee Extraction Method

Prepare Equipment (16 servings)

Ice drip coffee pot, measuring spoon (or digital scale), 50g coffee grounds, 500ml water.

Note: 30ml of extracted ice drip coffee equals one serving. Adjust the concentration by adding ice cubes and water to taste before drinking.

FrontStreet Coffee Suggests This Ice Drip Recipe:

30g [Hartman] + 30g [Flower Queen], which will give a rich fermented-fruit aroma.

FrontStreet Coffee Recommendation

Cold brew amplifies floral and fruity notes while muting woody and roasty ones, so light-to-medium roasts are the best starting point. These FrontStreet beans were chosen with cold brew in mind:

FrontStreet Strawberry Candy Geisha Blend — Geisha is famous for its classic florals and fresh fruit sweet-tartness, and this blend pairs the most representative Panama Geisha with a Costa Rican honey-process coffee. One supplies delicate rose and orange, the other a grape, raisin, and strawberry-gummy sweetness, together building real depth. Cold-brewed, it is sweet-tart and lively; given a little time to ferment and settle, it takes on a fruity-wine quality.

FrontStreet Sun-dried Flower Queen — cold brew intensifies the floral and fruity side of a coffee, so if you like a flower-forward iced coffee, start here. Grown in Ethiopia, the birthplace of coffee, it is naturally processed, absorbing plenty of sweet aromatics from the fruit and skin. Cold-brewed, it shows magnolia, creamy strawberry, dried mango, guava, and black tea.

FrontStreet Kenya Cherry Tomato — the first choice when you want a cold brew full of juice. The sweet-tart interplay of cherry tomato, pear, black plum, and dark plum comes through vividly at low temperature: low bitterness, full acidity, and even more refreshing over ice, with a long-lasting aroma. From Kenya's Thika region and grown from the selected SL28 and SL34 varieties, it is processed with the local K72 double-wash method and roasted light-to-medium to convert its aromatic precursors into a more complex, fruit-driven cup.