The Well / Brew

The Complete Brew Guide

Every major brewing method, with precise recipes and the physics behind each. Grind sizes, ratios, temperatures, timing, technique. What to adjust when the cup tastes wrong.

All recipes assume freshly roasted coffee (7 to 28 days post-roast), a burr grinder, filtered water at 75 to 150 ppm TDS, and a scale accurate to 0.1g. Adjust to taste.

01

Pour-Over

Gravity pulls water through a bed of ground coffee. The brewer controls flow rate, pour pattern, and agitation. The cone shape, filter material, and drain speed define the character of each dripper.

Hario V60

Conical, spiral ribs, large drain hole

The V60's single large drain hole and spiral ribs allow fast flow. This gives the brewer maximum control, but also maximum risk. Small changes in pour rate, grind, or agitation produce large flavor shifts. It rewards precision.

Tetsu Kasuya 4:6 Method

World Brewers Cup 2016. Divides total water into two phases: the first 40% controls sweetness vs. acidity, the last 60% controls strength. Coarser grind than typical V60 recipes.

  • Dose: 20g coffee, 300g water
  • Grind: Coarse-medium (like sea salt)
  • Temp: 92 to 93C
  • Phase 1 (40%, 120g): Two pours of 60g each, 45s apart. More water in the first pour emphasizes acidity. More in the second emphasizes sweetness.
  • Phase 2 (60%, 180g): Three pours of 60g each, 45s apart. Fewer, larger pours make a stronger cup. More, smaller pours make it lighter.
  • Total time: ~3:30

James Hoffmann Technique

Finer grind, aggressive bloom, single continuous pour, gentle swirl at the end. Designed for clarity and even extraction.

  • Dose: 15g coffee, 250g water (1:16.7)
  • Grind: Medium-fine
  • Temp: Off boil, 95 to 100C
  • Bloom: Pour 2x dose (30g), swirl vigorously. Wait 45s.
  • Main pour: Single continuous pour to 250g in concentric circles. Avoid the filter walls.
  • Finish: Gentle swirl once. Let drain. Light tap to flatten bed.
  • Total time: ~3:00 to 3:30

Common mistakes: grinding too coarse (sour, fast drain), pouring too aggressively (channeling, bitter), inconsistent pour rate.

Kalita Wave

Flat bed, three small drain holes

The Wave's flat bottom and three small drain holes restrict flow rate, creating a more even extraction across the coffee bed. It is more forgiving than the V60 because the brewer's pour pattern matters less. The flat bed means all grounds spend roughly equal time in contact with water.

  • Dose: 15g coffee, 250g water (1:16.7)
  • Grind: Medium (like table salt)
  • Temp: 93 to 96C
  • Bloom: 45g water, wait 30 to 45s
  • Pours: 3 to 4 pulse pours, 50 to 70g each, center-focused
  • Total time: 3:00 to 3:30

The wavy filter keeps a thin air gap between coffee and brewer walls, insulating the slurry and reducing heat loss. Use the stainless steel or glass model, not ceramic, for best heat retention.

Chemex

Thick bonded filter, 20-30% more paper

The Chemex filter is 20 to 30% thicker than standard paper. It absorbs oils and fine sediment, producing a brilliantly clean cup with high clarity but less body. Invented by Peter Schlumbohm in 1941, it is in the permanent collection of the Museum of Modern Art.

  • Dose: 30g coffee, 500g water (1:16.7)
  • Grind: Medium-coarse (coarser than V60, the thick filter slows flow)
  • Temp: 93 to 96C
  • Bloom: 60g water, wait 45s
  • Main pour: Slow concentric pours, keeping water level below the top of the grounds. Pulse or continuous.
  • Total time: 4:00 to 5:00

Rinse the filter thoroughly. Chemex paper has a papery taste if unrinsed. Place the three-layer side over the spout channel for airflow.

Origami, December, Melitta

Variations on the cone

Origami Dripper: 20 vertical ribs create large air channels. Accepts both conical (V60 style) and flat-bottom (Wave style) filters. One of the most versatile drippers made. The material (ceramic or resin) affects heat retention.

December Dripper: An adjustable-flow V60-style cone with a valve at the bottom. Open the valve for percolation (pour-over style), close it for immersion, or anywhere in between. Bridges immersion and percolation in a single brewer.

Melitta: The original pour-over, invented by Melitta Bentz in 1908 using blotting paper and a punctured brass pot. Modern Melitta drippers have a single small hole and produce a slow, forgiving draw-down. Grind medium. Use a 1:16 ratio. Total time around 3:30 to 4:00.

02

Espresso

Water at 6 to 9 bars of pressure forced through a finely ground, compressed puck of coffee. The combination of pressure, fine grind, and short contact time produces a concentrated extraction with crema, body, and intensity that no other method achieves.

Anatomy of a Shot

  • Dose: The weight of dry coffee in the portafilter basket. Typically 18 to 20g for a double shot. Determined by basket size.
  • Yield: The weight of liquid espresso in the cup. A 1:2 ratio (18g in, 36g out) is a common starting point for medium roasts. Lighter roasts often need 1:2.5 or higher.
  • Time: From pump start to target yield. 25 to 30 seconds is traditional, but this varies. Time is an output, not a target. Let the grind and yield determine the time.
  • Pressure: 9 bars is the standard. Some machines profile pressure, starting low (2 to 3 bars for pre-infusion), ramping to 6 to 9, and declining at the end.
  • Temperature: 90 to 96C at the group head. Lighter roasts extract better at higher temperatures. Dark roasts need lower temperatures to avoid bitterness.

Dialing In Workflow

Dialing in means finding the grind setting, dose, yield, and temperature that make a given coffee taste its best as espresso. Change one variable at a time.

  1. Fix the dose to your basket size (e.g. 18g).
  2. Fix the yield to a 1:2 ratio (36g).
  3. Adjust grind until the shot runs in 25 to 30 seconds. Too fast = too coarse. Too slow = too fine.
  4. Taste. Sour and thin? Grind finer or raise temperature. Bitter and ashy? Grind coarser or lower temperature.
  5. Adjust yield. Still sour at the finest grind that doesn't choke? Increase yield to 1:2.5. Bitter? Decrease to 1:1.5 (ristretto).
  6. Adjust temperature in 1C increments as a final refinement.

Puck Preparation

Consistent puck prep is the foundation of consistent espresso. Every step reduces the chance of channeling.

  • WDT (Weiss Distribution Technique): Stir the grounds in the basket with thin needles (0.3 to 0.4mm acupuncture needles) to break up clumps. The single most impactful puck prep technique. Clumps create channels.
  • Leveling: Use a distribution tool or tap the portafilter to create a level surface before tamping. Uneven density causes uneven flow.
  • Tamping: Press straight down with 15 to 20 lbs of force. Consistency matters more than force. A calibrated tamper helps. The goal is a flat, level surface perpendicular to the basket walls.
  • Paper filter (optional): A thin filter paper on top of the puck (or below) can improve flow uniformity and reduce channeling. Common in competition.

Pressure Profiling & Channeling

Pressure profiling means varying pressure during the shot instead of holding a flat 9 bars. A common profile: pre-infuse at 2 to 3 bars for 5 to 10 seconds (saturates the puck gently), ramp to 6 to 9 bars for the main extraction, then decline to 4 to 6 bars toward the end (reduces channeling as the puck erodes).

Channeling is when water finds a path of least resistance through the puck, over-extracting that path (bitter) and under-extracting the rest (sour). Signs: blonding on one side, spraying, uneven flow from the bottomless portafilter. Causes: clumps, uneven tamp, cracks in the puck, too fine a grind for the dose.

Diagnosis: Use a bottomless (naked) portafilter. A well-extracted shot forms a single central stream. Spritzers, side-streams, or uneven coloring reveal channeling.

03

Immersion

Coffee grounds sit in water for a fixed time, then are separated by filtration or pressing. Extraction is more uniform than percolation because every particle contacts the same water. The result is a full-bodied, round cup with less clarity but more texture.

French Press

Full immersion, metal mesh filter

The metal mesh allows oils and fine particles through, producing the heaviest body of any brew method. The cup is rich, textured, and slightly cloudy.

Standard Method

  • Dose: 30g coffee, 500g water (1:16.7)
  • Grind: Coarse (like raw sugar)
  • Temp: 93 to 96C
  • Steep: 4 minutes, press slowly, serve immediately

James Hoffmann Method

A cleaner, less silty French press. The insight: most sediment comes from pressing too aggressively and from fines suspended in the top layer.

  • Dose: 30g coffee, 500g water
  • Grind: Medium (finer than traditional French press)
  • Pour all water. Wait 4 minutes. A crust forms on top.
  • Break the crust with a spoon. Stir gently. Scoop off remaining foam and floating particles.
  • Wait 5 to 8 more minutes. Fines settle to the bottom.
  • Place plunger just below surface (do not press down). Pour gently.
  • Total steep: 9 to 12 minutes. The cup is remarkably clean for a French press.

AeroPress

Immersion + pressure, paper filter

Invented by Alan Adler in 2005. A uniquely versatile brewer: paper-filtered for cleanliness, short steep for speed, gentle pressure for body. Produces anything from espresso-like concentrate to clean filter coffee depending on recipe.

Standard (Upright)

  • 15g coffee, 200g water at 85 to 92C, medium-fine grind
  • Add coffee, add water, stir 10 seconds, press at 1:00 to 1:30

Inverted Method

  • Flip the AeroPress so the plunger seals the bottom. Add coffee and water. Steep without dripping.
  • 15g coffee, 200g water at 90C, medium grind, steep 2:00, flip and press gently for 30s

Competition Style (Example)

  • 18g coffee, 200g water at 80C, fine grind
  • Inverted. 30g bloom for 30s. Add remaining water. Steep 1:30. Swirl. Flip and press 30s.
  • Bypass: add 50 to 100g hot water to the cup to dilute the concentrate

The World AeroPress Championship publishes all winning recipes. Temperature, grind, and steep time vary wildly. That is the point: the AeroPress is a platform, not a prescription.

Clever Dripper

Immersion with paper filter, valve release

A flat-bottom brewer with a valve that seals until placed on a cup or server. Coffee steeps in full immersion, then drains through a paper filter when the valve opens. Combines the body of immersion with the clarity of paper filtration.

  • Dose: 15g coffee, 250g water (1:16.7)
  • Grind: Medium
  • Temp: 93 to 96C
  • Steep: Add coffee, pour all water, stir once. Steep 2:00 to 3:00.
  • Release: Place on server. Drain takes ~1:30. Total time ~3:30 to 4:30.

Siphon (Vacuum Brewer)

Vacuum pressure, cloth or paper filter

Water in the lower chamber is heated, creating vapor pressure that pushes it up into the upper chamber where the coffee steeps. When heat is removed, the vacuum draws the brewed coffee back down through a filter. The result is exceptionally clean and aromatic.

  • Dose: 25g coffee, 400g water
  • Grind: Medium
  • Temp: Water rises at ~92 to 94C
  • Steep: Add coffee when water has risen, stir gently, steep 60 to 90 seconds
  • Remove heat. Vacuum draws coffee down in 30 to 60 seconds.

The Japanese kissaten tradition perfected siphon brewing. The bamboo paddle, the halogen beam heater, the nel cloth filter. A theatrical method that rewards patience and produces a luminous cup.

04

Cold Methods

Low temperature changes everything. Cold water extracts different compounds at different rates. Acids dissolve slowly, so cold coffee tends toward smooth, sweet, and chocolatey rather than bright and fruity.

Cold Brew

Immersion, room temp or refrigerated

Coarse grounds steeped in cold or room-temperature water for 12 to 24 hours. The long time compensates for the low temperature. The result is low-acid, heavy-bodied, and sweet.

  • Concentrate: 1:5 ratio (100g coffee, 500g water). Dilute 1:1 with water or milk.
  • Ready-to-drink: 1:12 to 1:15 ratio. Drink as brewed.
  • Grind: Very coarse (like peppercorn)
  • Steep: 12 to 18 hours at room temp, 18 to 24 hours refrigerated
  • Filter: Paper, cloth, or fine mesh. Double filtering reduces sediment.

Cold brew concentrate keeps 7 to 10 days refrigerated. Diluted, consume within 2 to 3 days.

Flash Brew (Japanese Iced)

Hot brew directly onto ice

Hot water extracts coffee normally (preserving aromatics and acidity), then the brew falls directly onto ice, cooling instantly. This locks in volatile aromatics that cold brew loses during its long steep. Flash brew tastes like a cold version of hot coffee, not like cold brew.

  • Dose: 20g coffee
  • Water: 200g hot (96C) + 120g ice in server
  • Grind: Medium-fine (finer than normal, less water to extract with)
  • Brew: Pour-over (V60 or similar) directly onto ice
  • Why it's superior: Full aromatic extraction. Bright acidity preserved. Ready in 3 minutes instead of 18 hours.

Kyoto-Style Cold Drip

Slow drip, 3-12 hours

Ice water drips one drop at a time through a bed of ground coffee. Not immersion, but extremely slow percolation. The towers are beautiful, often standing three feet tall with glass globes and wooden frames.

  • Drip rate: One drop per second (adjust with valve)
  • Dose: 40g coffee, 500g ice water
  • Grind: Medium to medium-coarse
  • Time: 3 to 12 hours depending on drip rate

Produces a delicate, tea-like body with remarkable clarity. Some producers age Kyoto drip in wine barrels. It is a luxury product.

05

Traditional & Stovetop

Methods that predate the specialty coffee era. They carry centuries of technique, ritual, and cultural meaning.

Turkish / Cezve

Powder-fine, unfiltered, boiled

The oldest extant brewing method. Coffee ground to flour-like powder, combined with cold water (and sugar, if desired) in a small copper or brass pot called a cezve (or ibrik). Heated slowly until foam rises. The grounds are never filtered out; they settle in the cup.

  • Dose: 7g coffee per 65ml water (one demitasse)
  • Grind: Powder-fine (finer than espresso, like flour)
  • Water: Cold, preferably soft
  • Sugar: Added before heating. Sade (plain), az sekerli (little sugar), orta (medium), sekerli (sweet).
  • Technique: Low heat. Stir once when adding coffee. Never stir again. Watch for foam (kaymak) to rise. Remove just before it boils. Pour to distribute foam evenly.
  • Fortune reading (tasseography): After drinking, the cup is inverted onto the saucer. The patterns in the dried grounds are read for fortune.

UNESCO Intangible Cultural Heritage since 2013. The key is patience. Low heat and slow approach to boil produces thick, even foam.

Moka Pot

Stovetop, steam pressure, 1.5 bars

Invented by Alfonso Bialetti in 1933. Water in the lower chamber is heated, generating steam pressure (~1.5 bars) that pushes water up through a basket of coffee and into the upper chamber. Not true espresso (which requires 9 bars), but produces a strong, concentrated brew.

Most people do it wrong. Common errors:

  • Using cold water in the base (overheats the coffee, tastes metallic and bitter)
  • Tamping the grounds (too much resistance, bitter extraction)
  • Using high heat (same problem: overheating)

Correct technique:

  • Start with pre-heated water (just off boil) in the lower chamber. This reduces time on heat.
  • Fill the basket level, do not tamp. Brush off loose grounds from the rim.
  • Medium-low heat. Lid open so you can watch.
  • When coffee starts to flow, it should be honey-colored and steady, not sputtering.
  • Remove from heat when the flow turns pale and starts to bubble (this is steam, not coffee). Run the base under cold water to stop extraction.
  • Grind: Medium-fine (between espresso and pour-over)

Batch Brew

SCA Golden Cup, automated pour-over

A well-calibrated batch brewer applies SCA Golden Cup standards automatically: water at 92 to 96C, contact time of 4 to 8 minutes, extraction yield of 18 to 22%, TDS of 1.15 to 1.45%, and a brew ratio of 55g per liter (1:18.2).

  • SCA Golden Cup standard: 55g/L (+/- 10%), 92 to 96C water temp, 18 to 22% extraction yield
  • Grind: Medium (adjust for contact time)
  • Bypass brewing: Some batch brewers route a portion of hot water around the coffee bed and mix it into the finished brew. This increases volume without over-extracting. Useful for large batches.
  • Spray head: SCA-certified brewers have a shower head that distributes water evenly across the entire bed. This is what separates a good batch brewer from a bad one.

Batch brew done right is indistinguishable from a skilled pour-over. The machine just removes human variability.

06

Troubleshooting

Every off-tasting cup is a signal. Learn to read what the coffee is telling you.

Too Sour / Underextracted

Sharp, vinegary acidity. Thin body. Salty or astringent finish. The water did not dissolve enough of the coffee's soluble material.

  • Grind finer (more surface area, faster extraction)
  • Increase water temperature
  • Increase brew time / contact time
  • Increase agitation (more pours, more stirring)
  • Use a higher ratio (more water per gram of coffee)

Too Bitter / Overextracted

Harsh bitterness, dry mouthfeel, ashy or woody taste. The water dissolved too much, pulling undesirable compounds from the grounds.

  • Grind coarser
  • Decrease water temperature
  • Decrease brew time
  • Reduce agitation
  • Use a lower ratio (less water per gram of coffee)

Weak / Watery

No off-flavors, just thin and lacking. The extraction may be fine, but the concentration is too low.

  • Increase dose (more coffee per volume of water)
  • Use a tighter ratio (1:15 instead of 1:17)
  • Grind finer (increase extraction at the same ratio)

Channeling (Espresso)

Simultaneously sour and bitter. Fast shot time. Uneven flow from bottomless portafilter.

  • Use WDT to declump grounds
  • Ensure level tamp
  • Check for cracks in the puck after pulling the shot
  • Try a lower pump pressure or longer pre-infusion
  • Check that the basket is not overfilled

Every recipe here is a starting point. Your water, your grinder, your beans, your palate. Adjust. Taste. Repeat.