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How to Roast Coffee

Roasts coffee beans by heating them in a roaster or oven until browned.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Coffee and butter are a kitchen classic. They rank in the top 23% of all ingredient pairs, and cooks put them together in 2,442 recipes. Both carry 2-furfurylthiol, which smells coffee, roasted. The science ↓

How to Roast Coffee

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Procure a small family coffee roaster.

  2. Mix ¾ pound of Java with ¼ pound of Mocha coffee.

Roast on the stove

  1. Place the mixture in the roaster on moderate heat.

  2. Turn the handle constantly for about 25 minutes until the coffee is a good brown color.

  3. Transfer the roasted coffee to an earthen jar and cover tightly.

Finish in the oven

  1. Butter the bottom of a tin baking dish, then add the coffee mixture.

  2. Roast in a 350°F (175°C) oven for 20 minutes.

  3. Toss frequently with a wooden spoon.

Store

  1. Remove to an earthen jar and cover well.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Coffee + buttertop 23% of all pairs
    Smell alikemoderate
    Cooked together2,442 recipes

    Shared aroma: 2-furfurylthiol (coffee, roasted).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Java coffee
Forms the bulk of the blend, supplying body and deep roasted flavor as it browns.
Mocha coffee
Adds a second bean type to the blend, contributing extra aroma and flavor complexity.

The step that matters

Turn the handle constantly. Constant movement spreads heat evenly so beans brown uniformly instead of scorching. Browning comes from Maillard reactions and caramelization, which build color and roasted aroma, so uneven contact produces bitter, burnt spots alongside pale beans.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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