Brew Method
Delter Coffee Press: Recipe, Grind Size & How It Works
The Delter Coffee Press sends water through a separate coffee bed in controlled plunger strokes. Its Jet-Seal method makes filtered coffee without steeping the grounds throughout the water chamber.
Brew Snapshot
- Coffee dose
- 15 g, medium-coarse
- Water input
- 200 ml (6.8 US fl oz) at 93°C (199°F)
- Brew time
- 1½–2 minutes
- Serving
- One small coffee; measure collected yield
More brewing details
- Method
- Delter Coffee Press
- Brew time
- 1½–2 min brewing; about 5 min with setup
- Grind size
- Medium-coarse for this recipe
- Equipment
- Delter Coffee Press with standard Jet-Seal and fitted filter cap, Delter-compatible paper filter, Scale, grinder and timer, Kettle and thermometer or temperature-controlled kettle, Stable heatproof cup or server that securely supports the brewer
- Difficulty
- Moderate
- Body
- Depends on coffee and filter
- Clarity
- Paper-filtered
Key Takeaways
- Choose the Delter if you enjoy controlling water delivery with a plunger; its standard method feeds a separate bed of grounds.
- Paper gives the cleaner texture; a compatible metal outlet filter allows more oils through for a fuller feel.
- For a larger serving, follow a complete refill recipe so the coffee dose grows with the water.
On This Page9 Sections
Delter Coffee Press Recipe
This starting recipe follows Delter’s 2026 brew guide.
Recipe
Delter Coffee Press Starter Recipe
- Makes:
- 1 small serving; collected coffee is less than the water input
- Time:
- About 5 min with hot water ready; 1½–2 min brewing
Ingredients
- 15 g medium-coarse ground coffee
- 200 ml (6.8 US fl oz) water at 93°C (199°F), plus extra hot water for rinsing the filter
Equipment
- Delter Coffee Press with standard Jet-Seal and compatible paper filter
- Stable heatproof cup or server of at least 300 ml (10.1 US fl oz)
- Scale, grinder, timer and kettle
Method
- Put a compatible paper filter in the cap, rinse it with hot water and discard the rinse water.
- Before adding brewing water, fully insert the plunger. Turn the empty brewer over, add 15 g coffee to the bottom coffee chamber and attach the filter cap securely.
- Turn the assembled brewer upright and rest it securely on a stable heatproof cup or server. Fill the open water chamber to its 200 ml (6.8 US fl oz) line with water at 93°C (199°F). Keep the water-filled brewer upright.
- Start a timer. Raise the plunger slowly, then press down gently to send water through the coffee bed. Repeat controlled raise-and-press strokes until the water is dispensed, aiming for 1½–2 minutes of brewing. Stop if pressing becomes difficult; do not force it.
- Lift the brewer off carefully and serve. For a brewing log, weigh the collected coffee separately; 200 ml (6.8 US fl oz) describes water added, not finished yield.
Check that the receiver’s rim securely supports the brewer.
The initial turn-over is only for loading the empty, unheated brewer. Once water is added, keep it upright over the cup. Use a level counter and gentle pressure. If pressing becomes difficult, stop; more force is not the next adjustment.
Why Do Other Delter Recipes Use Different Amounts?
Delter’s current FAQ gives 20 g coffee to 300 ml (10.1 US fl oz) water, a medium grind and about three to four minutes. Its dedicated 2026 guide gives the smaller recipe used here. These are separate starting points, so keep the dose, water and timing from one recipe together while learning the brewer.
Our baseline uses 75 g coffee per liter of brewing-water input: 15 g divided by 0.2 liters. That calculation describes the recipe’s inputs, not the strength or extraction measured in the cup. For ratio comparisons with another brewer, record the collected coffee too.
How the Delter Coffee Press Jet-Seal Works
The coffee sits in a small chamber at the bottom. The Jet-Seal separates that bed from the water above it. Raising and pressing the plunger meters water through the grounds in stages, while the filter in the bottom cap holds back particles.
Delter calls this injection brewing. Its technical overview distinguishes a confined coffee bed from grounds steeping throughout a water-filled chamber. You control the water delivery with the plunger rather than using a stir-and-steep routine.
It makes filtered coffee, not espresso. A hand-operated plunger does not by itself establish espresso pressure; Delter explicitly describes its operating pressure as much lower than espresso brewing. Use the espresso guide for that separate method.
Designed in Brisbane, the Delter reached its debut in March 2019 after a crowdfunding launch. Its development centered on a small silicone part: the Jet-Seal. The design team’s Australian Good Design Awards account describes finely cut openings that stay closed beneath resting water and open under pressure. That detail explains why the familiar-looking plunger serves a different purpose from a steep-and-press brewer.
Can the 200 ml (6.8 US fl oz) Chamber Make a Larger Coffee?
Yes. Delter documents adding more water and continuing to press through the coffee bed; its separate 20 g coffee and 300 ml (10.1 US fl oz) FAQ recipe is one larger starting point. Follow that recipe’s grind and timing rather than increasing only this recipe’s water.
More water through the same dose changes the result, and some stays with the grounds. For larger batches, follow a corresponding dose-and-water recipe, count every refill and use a suitable server. Do not overfill the chamber to squeeze in a larger single fill.
Delter vs. AeroPress
They share a portable plunger format, but the usual brewing sequence differs. AeroPress describes its method as combining wetting, immersion and pressure filtration. Delter’s standard configuration keeps a separate coffee bed and feeds water through it in strokes.
Swipe to see all columnsScroll to see all columns
| What changes | Standard Delter | Typical AeroPress method |
|---|---|---|
| Where the grounds sit | In the bottom coffee chamber, separated from the water supply by the Jet-Seal | Mixed with water in the brewing chamber before pressing |
| Main hand action | Repeated controlled raise-and-press strokes | Steep according to the recipe, then press the mixture through a filter |
| Starting grind | Medium-coarse for this 2026 recipe | Recipe-dependent; do not transfer a grind setting without checking the recipe |
| What to buy | Filters and replacement seals made to fit the Delter | Filters and accessories compatible with the particular AeroPress model |
Choose by the workflow you want to repeat. Delter suits someone who wants to control successive water deliveries; AeroPress offers many established steep-and-press recipes. See our AeroPress guide for its preparation steps.
What Does Delter Coffee Press Coffee Taste Like?
With the paper filter used here, Delter coffee has a clear finish and little sediment. The small serving can taste quite concentrated while still feeling lighter on the tongue than espresso. That combination suits beans whose sweetness and aroma you want to notice without a thick, oily texture.
Filter choice makes a useful difference. Delter’s compatible stainless-steel outlet filter lets more oils into the cup for a fuller feel; paper is the better starting point if clarity matters more to you. Choose fruit-led beans for a livelier flavor, or a cocoa-led roast for a rounder cup.
I prefer paper in the Delter because a clean finish makes the small, concentrated cup feel less heavy.
Paper Filters, Metal Filters and the Infusion Filter
Use a correctly fitted filter in the outlet cap. Delter’s paper-filter specification gives a 61.5 mm (2.42 in) diameter. This guide uses those paper filters; similarity to another brewer’s round filter is not a compatibility guarantee.
Delter also documents a 180-micron stainless-steel outlet filter with its Grey model, which accepts the paper micro-filters as well. Delter specifies Tritan plastic for that model's body. Check what your particular version includes. Delter describes the reusable filter as allowing more oils through; changing filter type can change cup texture, so keep it fixed when comparing grind adjustments.
The Delter Infusion Filter is a different accessory. It allows gravity-driven flow through the confined coffee bed, with the plunger used at the end to finish draining. Delter suggests three minutes or longer for that mode. Follow its installation and brewing instructions rather than applying the standard Jet-Seal stroke sequence unchanged.
Delter Coffee Press Grind and Troubleshooting
I keep my plunger strokes slow and even. When I change the grind or water amount, I want that to be the difference I'm tasting, rather than wondering whether I happened to press harder as well.
Begin medium-coarse. Grinder numbers are not transferable between brands; record your setting, water added, pressing time and collected yield.
| What you notice | What to check first |
|---|---|
| Plunger is hard to press | Stop pushing. Once cool, check filter placement and cleanliness; try a coarser grind on the next brew. Inspect the seal if resistance persists. |
| Coffee seems weak or thin | Check the weighed dose and total water, including refills. If those match, try a slightly finer grind while retaining gentle flow. |
| Harsh or drying cup | Check for stale residue and a very fine grind. Try a slightly coarser setting; roast and coffee choice also influence bitterness. |
| Grounds in the cup | Check for a torn, folded or poorly seated paper filter and a securely fitted cap. A reusable filter may give a different texture. |
| Unexpected leaking before pressing | Check that the standard Jet-Seal is fitted and undamaged. If using the optional Infusion Filter, gravity flow is part of that mode. |
Cleaning and Seal Care
Let the brewer cool before opening the bottom cap. Discard the paper and grounds, rinse the parts and remove the plunger so everything can dry. Delter’s care guidance recommends warm soapy water for deeper cleaning and favors hand washing. Rinse away detergent before brewing again.
If the plunger seal is damaged or leaking, use the manufacturer’s replacement-part and fitting guidance. The Y-Seal on the plunger and the Jet-Seal above the coffee bed are different components; do not treat one as a substitute for the other.
Caffeine, Calories and Sugar
Plain Delter coffee has no added sugar or milk in this recipe.
For a clearly defined reference, USDA brewed coffee, NDB 14209, lists 1 kcal, 0 g sugar and 40 mg caffeine per 100 g (3.5 oz) of prepared coffee; caffeine is on page 548. Those are generic brewed-coffee values, not Delter-specific results.
Serving, calculation and source assumptions
The recipe’s 200 ml is water entering the brewer. Grounds and the brewer retain some water, so that number cannot be used as a measured beverage weight. If you weigh the collected coffee, the generic caffeine comparison is collected grams × 0.4 mg; the calorie comparison is collected grams × 0.01 kcal. Milk, syrup or sugar added afterward must be counted separately.
Editor's Take
Sources and Further Reading
View 10 references
Method and care
- Delter Coffee Press Brew Guide 2026PDFDelter Coffee Tools · Page 2 supplies the 15 g recipe, 200 ml water, 93°C temperature and 1½–2-minute target(opens in a new tab)
- Brewing with the Delter Coffee PressDelter Coffee Tools · Manufacturer explanation of injection brewing, lower pressure than espresso and adding water for larger batches(opens in a new tab)
- FAQs and cleaning guidanceDelter Coffee Tools · Separate 20 g / 300 ml starting recipe, cleaning advice and plunger-seal maintenance(opens in a new tab)
Filters and comparisons
- Delter Micro Paper FiltersDelter Coffee Tools · Official 61.5 mm paper-filter specification(opens in a new tab)
- Delter Coffee Press GreyDelter Coffee Tools · 180-micron reusable outlet filter and paper-filter compatibility for the named model(opens in a new tab)
- Delter Infusion FilterDelter Coffee Tools · Separate accessory using gravity flow with a finishing press; not the standard Jet-Seal recipe(opens in a new tab)
- How AeroPress WorksAeroPress · Manufacturer description of wetting, immersion and pressure filtration(opens in a new tab)