calculators.coffee by Timberline Coffee School

Brew Temperature Converter

Convert between \u00b0C and \u00b0F in real time. SCA filter target (90.5\u201396.1 \u00b0C / 195\u2013205 \u00b0F) highlighted.

SCA filter brewing targetSCA Target

Last updated

How to Use This Converter

  1. Type in Either Field

    Enter a value in the Celsius or Fahrenheit field. The other field updates in real time. No convert button needed.

  2. Read the Brew Context

    Below the inputs, a context band tells you where your temperature sits relative to the SCA filter brewing range and other common brewing zones.

  3. Check the Result Card

    The result card shows both values and the brew context label. Copy the output to keep it handy at the kettle.

Brew Temperature: What the Numbers Mean

The SCA puts the filter brewing water temperature target at 90.5 to 96.1 °C (195 to 205 °F). That is the range the SCA filter brewing standard was designed around, and it is where most specialty filter recipes land. Within that band, temperature affects extraction rate and flavour profile in ways that are real but often overstated.

For practical purposes: 93 °C (199 °F) is the reliable starting point for most filter methods (V60, Chemex, batch brew). Dark roasts tolerate the low end (90 to 92 °C); light roasts benefit from the high end (95 to 96 °C), where higher water energy accelerates the extraction of harder-to-extract compounds. The old advice about letting the kettle rest 30 seconds off the boil was approximate temperature control; it generally lands around 94 to 96 °C, which is fine. A temperature-controlled kettle removes the guesswork.

Espresso sits at 90 to 96 °C at the puck, with most modern machines defaulting to 93 °C. The relationship between temperature and espresso flavour is real but interacts with grind, dose, and yield in complex ways. Temperature is the last variable most baristas adjust. Fix the recipe first, then dial temperature if the cup still is not right.

Altitude changes everything. At 1,700 m (Denver, Bogotá), water boils at roughly 95 °C. At 3,000 m (Cusco, Addis Ababa), it boils at roughly 90 °C. This means “just off the boil” in a high-altitude city is still technically within the SCA brew range, but baristas in those locations often struggle with under-extracted espresso because their machines are calibrated for sea-level boiling point. The converter does not adjust for altitude, but knowing the local boiling point helps explain the adjustment.

°C Range°F RangeContext
Below 80 °CBelow 176 °FBelow practical brewing range
80–89 °C176–192 °FCold brew / Kyoto drip range
90–93 °C194–199 °FLow end: good for dark roasts and full-immersion
93–96 °C199–205 °FSCA filter brewing target
96–100 °C205–212 °FHigh end: suitable for light roasts
100 °C212 °FBoiling (sea level): too hot for most brewing
Above 100 °CAbove 212 °FAbove boiling (altitude or pressure): note altitude context

Frequently Asked Questions

What is the best water temperature for brewing coffee?

The SCA filter coffee brew standard sets the filter brewing target at 90.5 to 96.1 °C (195 to 205 °F). For most filter methods (V60, Chemex, batch brew) 93 °C (199 °F) is a reliable starting point. Dark roasts tolerate the low end of that range; light roasts benefit from 95 to 96 °C, where the extra water energy helps extract harder-to-dissolve compounds.

Does altitude affect brewing temperature?

Yes. Water boils at a lower temperature the higher you are above sea level. At 1,700 m (Denver, Bogotá) water boils at roughly 95 °C; at 3,000 m (Cusco, Addis Ababa) it boils at roughly 90 °C. This means "just off the boil" at altitude can still be within the SCA brew range, but machines calibrated for sea level may struggle to reach their rated temperature.

What temperature should I use for espresso?

Most modern espresso machines default to 93 °C at the puck. The practical range is 90 to 96 °C. Temperature affects espresso flavour, but it interacts with grind, dose, and yield. Fix those variables first before adjusting temperature. If a shot is consistently sour at correct parameters, a small increase (0.5 to 1 °C) is worth testing.

How do I convert °C to °F by hand?

Multiply the Celsius value by 9, divide by 5, then add 32. For example: 93 °C × 9 / 5 = 167.4 + 32 = 199.4 °F. Going the other way: subtract 32, multiply by 5, then divide by 9. These are the exact conversion formulas used in this calculator.

Why does the SCA specify a temperature range rather than a single value?

Different coffees extract at different rates depending on roast level, grind, and origin. A single target temperature would over-extract dark roasts and under-extract light ones. The 90.5 to 96.1 °C range gives enough room to adjust based on what you're brewing. Within that band, you'll find the SCA filter brewing parameters produce brews that score acceptably on sensory panels across a wide range of coffees.

Timberline Coffee School

Trent built this calculator. He also runs Timberline Coffee School, where baristas and roasters train through SCA-accredited programs covering espresso, brew method, and sensory skills.

Related Calculators