Why it works: Coffee and milk are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 2,202 recipes. Both carry 4-heptenal, which smells creamy, biscuit. The science ↓
Boiled Coffee
Ingredients
Directions
Prepare
In a coffee pot, mix the ground coffee with the egg white.
Crush the eggshell and add it to the pot.
Brew
Pour in freshly boiled water to the required amount.
Close the lid and spout tightly, then boil for 3 minutes.
Add ⅓ cup of cold water to settle the coffee.
Settle and serve
Move the pot aside to keep it hot but not boiling for 10 to 15 minutes.
Serve immediately with boiled milk.
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.
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Coffee + milktop 10% of all pairsSmell alikemoderateCooked together2,202 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
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Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Coffee + eggtop 29% of all pairsSmell alikelowCooked together3,239 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ground coffee
- Provides the main flavour and body of the brewed coffee.
- Egg white
- Binds fine grounds so they clump and settle, leaving the coffee clearer.
The step that matters
Keep the pot hot but not boiling while it settles. Once the coffee is brewed, boiling again would stir up the grounds and keep them suspended. Holding the pot just below a boil lets the egg white and grounds sink to the bottom so the coffee pours clear.
“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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