Coffee Brewing Temperature Guide: Ideal Ranges by Method

The number on your kettle is a starting point, not a target the coffee actually reaches. Below are the temperatures our Brew Guide starts with for each brewer, what happens to that heat on its way into the coffee, and what the research says about how much temperature changes the taste.

Kettle temperatures by method and roast

These are the water temperatures our Brew Guide sets for each brewer. It steps the temperature down as the roast gets darker. Treat them as the first brew of a recipe, then adjust by taste.

A few brewers need a note:

• AeroPress. AeroPress’s own Signature Brew calls for 185°F (85°C), or boiling water if your kettle has no temperature control. The Brew Guide uses the same 185°F for a medium roast and moves up or down for lighter and darker roasts.
• Espresso. The brew temperature is set on the machine, if it can be set at all, so follow your machine maker’s instructions for changing it.
• Moka pot. The Brew Guide fills the base with just-boiled water whatever the roast, so the pot spends less time on the stove before the coffee flows.
• Drip machine. The machine sets its own temperature. Batali and colleagues note that to earn SCA certification, a home brewer has to reach 198°F (92°C) within the first minute, stay at or above it, and never go over 205°F (96°C).
• Cold brew. It uses cold or room-temperature water (the Brew Guide’s card says “Cold”, with no number) and makes up for it with time: the Brew Guide’s recipe steeps for 12 hours. Our cold brew tutorial has more.

Stepping down with the roast is a starting convention, not a tested law. In replies to readers of his V60 guide, Jonathan Gagné passes on Matt Perger’s view that lower temperatures can soften roasty flavors, which suits a dark roast. Asked about another common adjustment, brewing natural-process coffees cooler than washed ones, he says he hasn’t seen a satisfying blind experiment on it.

Our 2021 video on this question predates this revision; for temperatures, follow the table above.

The coffee is cooler than the kettle

The mix of coffee and water in a pour-over cone, the slurry, never reaches the kettle’s temperature. Gagné, an astrophysicist who studies brewing, explains why in his V60 guide: the grounds, the cone and the air are all cooler than the water, even after preheating, so with water straight off the boil his V60 slurry hardly ever gets above 199°F (93°C). That’s at least 13°F (7°C) below the boiling water he starts with (calculated).

He notes that most recipes call for 196 to 201°F (91 to 94°C), but for a V60 he recommends getting the kettle as hot as possible, because it’s easy to fall well below 196°F (91°C) in the cone, which gives a more under-extracted, sour cup. Three things make the gap bigger:

• The brewer’s material. Scott Rao recommends a plastic V60 because plastic insulates better than ceramic or glass, and Gagné’s thermometer in the slurry agreed: the plastic cone held heat much better. In a reply to a reader, Gagné estimated that a well-preheated glass Chemex brewed with boiling water would sit around 185°F (85°C).
• An unheated brewer. Rinse the filter and brewer with hot water first, so they take less heat from the brew.
• Many tiny pours. Gagné warns that pouring in lots of small batches will leave the slurry well below 196°F (91°C). He keeps the coffee bed covered between pours so the temperature doesn’t drop too much.

This is why the V60 recipe in our pour-over guide uses water straight off the boil.

Does temperature change the taste?

Yes, mainly through extraction. Hotter water dissolves coffee faster, and Gagné points out that different compounds extract at different rates, each depending on the temperature, so he expects the balance of a cup to shift with it.

A sensory study from UC Davis tested how much of that you can taste. Batali, Ristenpart and Guinard drip-brewed coffee at 87, 90 and 93°C (189, 194 and 199°F), adjusting the grind and brew time so that each temperature hit the same strength and extraction. Strength and extraction both changed the taste significantly; the brew temperature had no appreciable effect. Their conclusion applies to the range they tested and to a drip brewer, but it’s a useful guide: temperature mostly matters for how much it extracts.

In practice, for a sour or bitter cup, change the grind first, one step at a time, as our V60 guide does. If a light roast still tastes sour once a finer grind starts to taste drying, go back one step and try hotter water on the next brew, keeping everything else the same. Our grind size guide and extraction guide cover the rest.

Boiling water won’t burn coffee, either. Gagné agrees with Perger that roasting happens at far higher temperatures than brewing, and he brews his V60 straight off the boil.

Altitude lowers the boil

Water boils at a lower temperature the higher you live. At 5,000 feet it boils at about 203°F (95°C), calculated from the standard atmosphere’s air pressure at that height and the boiling point of water at that pressure; changes in air pressure with the weather shift it slightly.

That’s below the Brew Guide’s 205°F (96°C) for a light-roast pour-over, so at altitude the hottest water you can get is water straight off the boil. Use it right away, and preheat the brewer well.

Getting the temperature without a thermometer

For 203°F (95°C) and up, the Brew Guide’s cue is “just off the boil”. For 194 to 201°F (90 to 94°C) it’s “off the boil, rested about 30 seconds”, and for anything cooler, such as the AeroPress’s 185°F, “off the boil, cooled a few minutes”. These are rough cues. How fast water cools depends on the kettle and how full it is, so a thermometer or a kettle with temperature control is the reliable way to hit a number, and the easiest way to repeat a brew you liked.

Sources

• Jonathan Gagné, “How to Brew Better Coffee with a V60,” Coffee ad Astra, 2018, §4.6 (brew temperature) and §7.3 (workflow), and his replies in the comments on roast-dependent temperatures and the Chemex: coffeeadastra.com
• M. E. Batali, W. D. Ristenpart and J.-X. Guinard, “Brew temperature, at fixed brew strength and extraction, has little impact on the sensory profile of drip brew coffee,” Scientific Reports 10 (2020): 16450, abstract, introduction (SCA brewer certification) and discussion: doi.org/10.1038/s41598-020-73341-4
• AeroPress, “How To Use AeroPress,” Signature Brew instructions, checked October 15, 2026: aeropress.com
• National Oceanic and Atmospheric Administration, NASA and US Air Force, U.S. Standard Atmosphere, 1976, pressure at 5,000 feet (1,524 m), used for the altitude calculation
• National Institute of Standards and Technology, NIST Chemistry WebBook, SRD 69, saturation properties of water (boiling temperature at 0.0838 to 0.0857 MPa), used for the altitude calculation: webbook.nist.gov