Can You Make Coffee Without Filter Paper? How Long Should Immersion Coffee Steep? What's the Difference Between Immersion and Drip Extraction?

What to Do When You're Out of Coffee Filters

Many of us have been there: you're all set to brew, only to discover you've run out of filter paper! Just the other day, FrontStreet Coffee carelessly under-ordered filters and nearly faced a "no-filter crisis." Luckily, we'd stocked up on all sorts of other filters for our experiments, sparing us the embarrassment of being unable to make pour-over at all.

So if you're at home with no filter paper in sight, does that mean coffee is simply off the table?

Of course not! Even without filter paper, you can still brew a delicious cup. Filter paper is a filtration tool, and it may be essential for pour-over — which is drip extraction. But switch to a different extraction method and its importance drops sharply. Take immersion brewing, for instance.

Understanding Immersion Extraction

What is immersion extraction? It's the method in which coffee grounds steep in water for full-contact extraction. As FrontStreet Coffee has noted before, compared with drip extraction, immersion coffee not only has a fuller body but also a wider margin for error. The reason: during immersion, the water temperature keeps falling and the concentration difference between water and grounds keeps shrinking, so extraction efficiency steadily declines. In other words, immersion is far less likely to over-extract.

You may still use filter paper (or another filter) to some degree during immersion, but it's mainly there to keep sediment out of your cup. In fact, if you mind a few small details during extraction, coffee can come out very clean — no filtering tools needed. As it happens, a reader recently commented asking how to make coffee with less sediment. So today, FrontStreet Coffee will show you how to brew a cup without grounds, even with no filter paper! (There may be a little, but barely any.)

Immersion Extraction Guide

This guide applies to any immersion method. To show the results more vividly, FrontStreet Coffee uses no filtering equipment at all in this demonstration. The beans are Ethiopia's Kaffa Forest heirloom variety — a wonderfully clean cup, perfect for this technique! The gear: just two containers (ideally one with a spout) and a spoon for stirring.

Our goal isn't just coffee — it's delicious coffee! For that, proper extraction parameters are a must: time, water temperature, grind size, and coffee-to-water ratio all matter, and the last two are especially critical in immersion. Grind too coarse, and flavor compounds dissolve slowly from the grounds. Since immersion involves little manual intervention, we nudge the grind slightly finer to raise the dissolution rate. But too fine brings its own problems: as FrontStreet Coffee noted in "Does Finer Grinding Make Extraction Harder?", an overly fine grind makes settled grounds clump together, which sabotages extraction. So there's a floor as well as a ceiling.

Immersion's high fault tolerance only covers extraction rate. Golden Cup Extraction theory tells us that a broadly enjoyable, delicious coffee needs not just an appropriate extraction rate but also the right concentration — and concentration is governed mainly by water amount. Less water, stronger coffee; more water, thinner. Both extremes taste poor, so the ratio is the other variable to control strictly. With all that in mind, here are the parameters we're using:

Coffee amount: 20g
Grind level: EK43 at 9.5 setting, 80% pass-through rate on #20 sieve, fine sugar texture (one notch finer than regular hot brew grind)
Coffee-to-water ratio: 1:15
Water temperature: 100°C
Extraction time: 6 minutes

Now, the demonstration! First, pour the grounds and hot water into the cup together.

Start the timer and let the coffee steep for 3 minutes. After 3 minutes, use the spoon to gently stir or press down the grounds floating on the surface. Once there's essentially no coffee left floating, wait another 2-3 minutes.

During that waiting period, do nothing at all. The goal is to let any grounds still floating settle. (As you can see, the grounds have now all but accumulated at the bottom.)

When time is up, pour the coffee out directly — gently, so you don't drag grounds along with the liquid. (You could drink straight from the cup, but you'd more likely end up with grounds in your mouth.)

Stop pouring the moment fine particles start to emerge. Held up to the light, the coffee shows essentially no sediment.

Time to drink. On the palate, FrontStreet Coffee caught the fresh aroma of lemon and elegant white florals first, then the juiciness of sweet fruits like nectarine and sweet orange, with a long-lasting finish! Because we skipped filtration, a few extremely fine particles added a touch of body — quite pleasant, actually. This is an excellent extraction solution when filter paper is nowhere to be found. Worth trying next time the opportunity strikes!

FrontStreet Coffee Recommendation

The V60: A Beginner's Best Friend

Once your filters arrive, ask any experienced friend to recommend one practical, easy-to-use, good-looking dripper and the answer will likely be the Hario V60. Hario, founded in Tokyo in 1921 as a maker of heatproof laboratory glassware, redesigned the V60 into its modern form in 2004 — named for its distinctive 60° cone angle and "V" silhouette — releasing it the following year. The cone and 60° angle force water toward the center before it drips through, extending water-to-coffee contact so aroma and flavor extract fully, while the signature single large outlet leaves flow rate almost entirely in the brewer's hands — which is why resin, ceramic, glass, copper, and steel versions all brew differently through heat retention alone. FrontStreet Coffee's favorite is the resin version: it blocks heat loss best, and in mass production resin is the easiest material to mold with the smallest tolerances.

Beans for the V60

Before the turn of the millennium, coffee favored medium-dark roasts and heavy, sweet, caramelized profiles. The third wave changed that — roasts got lighter and flavor chasing turned to delicate florals and fruit acids, which the V60's fast extraction renders beautifully. The FrontStreet Yirgacheffe Chelbesa (Guodingding), with its bright citrus, berry, and green-tea-like sweetness, is the classic first pour-over; the FrontStreet Natural Huakui bursts with strawberry, passion fruit, jackfruit, and lychee; the FrontStreet Strawberry Sugar Geisha blend pairs Costa Rican honey-processed coffee with washed Panama Geisha for rose, orange, and honeyed sweetness; and the FrontStreet Kenya Cherry Tomato — SL28 and SL34 from Thika at 1550-1750 meters, K72 double-washed and lightly roasted — delivers cherry tomato and dark plum acidity like fresh-squeezed juice. For those who prefer low acidity, the FrontStreet PWN Golden Mandheling (herbal, dark chocolate, a whisper of earth) and the FrontStreet Brazil Queen Estate (nutty, cocoa, caramel sweetness) are outstanding matches.