What Is Drip Bag Coffee and How Should It Be Brewed?

Drip bag coffee is pre-ground coffee sealed in a filter bag with two ears that hang on the rim of a cup. It is filter extraction, similar in principle to pour-over, but it needs no grinder, dripper, or filter paper, only hot water and a container. It is not instant coffee: the grounds stay in the bag and hot water extracts them through degradable non-woven fabric.

Brewing goes wrong when the bag is treated like instant powder or flooded with water all at once. Hang the bag on the cup, pour in stages, and keep a 1:15 coffee-to-water ratio within the recommended water temperature range. This is close to hanging coffee in method, and staged pouring gives a cleaner cup with clearer layers than a single dump of water.

Drip bag coffee, with its portability and ease of use, has become the choice for many people's daily specialty coffee. It is essentially a form of filter extraction, similar in principle to pour-over, but it eliminates the need for a grinder, dripper, and other equipment. However, drip bag coffee is not instant coffee, and it should not be directly immersed or have water poured in all at once. This article covers the definition of drip bag coffee, common brewing mistakes, and the key points for correct brewing, including container selection, water temperature range, pouring method, and the 1:15 coffee-to-water ratio, while retaining relevant suggestions from Front Street Coffee to help you consistently brew a cup of drip bag coffee with clean flavor and clear layers.

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In recent years, coffee culture has continued to heat up, and many coffee enthusiasts need a cup every day before they feel ready to start work. But not everyone can walk into a coffee shop at any time and slowly enjoy a pour-over. So, to meet the need for easy portability and quick brewing, drip bag coffee came into being.

What is drip bag coffee?

Drip bag coffee is made by pre-grinding coffee beans and sealing them in a filter bag. The filter bag has "ears" on both sides that can hang on the rim of a cup and stay stable. As long as you have hot water and a suitable container, you can brew it anytime, anywhere.

Drip bag and pour-over both belong to filter extraction, but drip bag is much less troublesome to operate than pour-over. Pour-over coffee requires at least a brewing kettle, thermometer, dripper, filter paper, grinder, and timer scale. Drip bag coffee is already ground in advance, so no grinding equipment is needed. Its filter bag is usually made of degradable non-woven fabric. Hot water extracts the soluble substances from the coffee grounds, which then pass through the non-woven fabric into the cup, so filter paper and dripper are also omitted.

Those wrong ways to brew drip bag coffee

Mistake 1: Brewing it like instant coffee

Drip bag coffee is not instant coffee, drip bag coffee is not instant coffee, drip bag coffee is not instant coffee! Instant coffee is made by first using drying technology to turn extracted coffee liquid into powder, so once hot water is poured in, it can be reconstituted into a cup of coffee.

When Front Street makes drip bag coffee packets, it directly grinds fresh coffee beans to a medium-fine degree. Only about 30% of the flavor substances in these coffee grounds are soluble in water; the remaining 70% are insoluble wooden fibers, namely coffee grounds. So if you tear open the drip bag and pour the grounds directly into a cup to brew, what you get is not only a cup of black coffee, but also a mouthful of coffee grounds.

Mistake 2: Direct immersion

Drip bag coffee is not a tea bag; it is not something you just throw into water and soak to get coffee liquid. Because the grounds in a drip bag coffee packet are ground relatively fine, and each packet is about 10 grams. After hanging it on the cup, the coffee grounds pile up in the middle of the filter bag, forming a thicker bed of grounds.

At this point, if you do not tear open the seal and do not pour water into the center of the coffee bed, but instead pour water directly onto the surface of the filter bag to soak it, the center of the coffee bed is very difficult to wet, or takes a long time to wet. As a result, the coffee grounds near the filter bag release their flavor and then continue to release woody notes. Because not all the coffee grounds participate in complete extraction, what you end up with is often a cup that is both weak and has woody and papery notes—after all, the hot water is also constantly soaking the paper support of the drip bag.

Mistake 3: Pouring too much water at once

Many people use a kettle to pour water directly when brewing drip bag coffee. The spout of a kettle has a relatively large diameter, so it is easy to fill the filter bag all at once, and the coffee grounds overflow along the liquid surface, making the taste noticeably worse.

Mistake 4: The container for brewing drip bag coffee is too small/too short

For a 10g packet of Front Street drip bag coffee, it is recommended to pour 150g of hot water, which can extract about 140-145g of coffee liquid. If the container is too small or too short, the liquid surface will keep soaking the bottom of the drip bag during brewing, and the coffee grounds at the bottom will continue to be extracted, easily giving the coffee a bitter taste.

The correct way to brew drip bag coffee

Correct 1: Choose a taller brewing container

Try to choose a taller cup or pot for brewing, so that the drip bag coffee packet and the extracted coffee liquid surface maintain a certain distance.

Correct 2: The water temperature for brewing drip bag coffee should not exceed 92°C, and should not be lower than 88°C

In medium-fine ground coffee, soluble flavor molecules need a suitable temperature to be released better. Front Street recommends: for medium-light roast (with floral, berry, and citrus notes) drip bag coffee packets, brew with 90°C-92°C water; for medium roast (with nutty and cocoa notes) drip bag coffee, use 89°C-90°C water; for medium-dark roast (with herbal, spice, and dark chocolate notes) drip bag coffee, use 88°C-89°C water.

Correct 3: Pour hot water in small amounts multiple times

If you have a small coffee pouring kettle, that is best, because it can control the water flow poured onto the coffee grounds, allowing them to be evenly wetted and complete extraction. If not, that is fine too—pour water in small amounts multiple times, and do not fill the filter bag all at once.

Correct 4: The brewing ratio for drip bag coffee is 1:15

Front Street recommends a brewing ratio of 1:15 for drip bag coffee packets. For example, one packet of Front Street drip bag coffee is 10g. Brewed at a 1:15 ratio, 150g of hot water should be poured.

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