Coffee
Ingredients
Directions
Prepare
Scald the coffee pot.
Break up the eggshells and add them to the pot.
Add the coffee and enough cold water to moisten it.
Brew
Pour on the boiling water and cover tightly.
Let it boil gently for about four minutes.
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.
Photo for illustrative purposes only · Contact us to use it
Explore the science
What each ingredient does
- Coffee
- Provides the main flavor and aroma that the water extracts into the brew.
- Eggshells
- Help settle the fine grounds so the finished coffee is clearer.
The step that matters
Let it boil gently for about four minutes. Boiling too hard or too long pulls more bitter compounds from the coffee, so the brew tastes harsh. A gentle simmer extracts flavor more evenly.
“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.
More coffee recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Vegetable Soup350 recipes
Raspberry Vinegar214 recipes
Blackberry Cordial129 recipes
Lemonade126 recipes