Why it works: Potato and coffee work together. They rank in the top 12% of all ingredient pairs, and cooks put them together in 167 recipes. Both carry sotolon, which smells curry, maple. The science ↓
Hop Yeast
Ingredients
Directions
Prepare
Put hops and salt into a bowl and pour boiling water over them.
Peel and grate the potatoes, then strain the liquid over the grated potatoes and add sugar.
Heat the mixture on the stove for a few minutes to thicken.
Ferment
When the mixture is warm, stir in the yeast, cover, and place in a warm area to rise.
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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Potato + coffeetop 12% of all pairsSmell alikemoderateCooked together167 recipes
Shared aroma: sotolon (curry, maple).
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Sugar + coffeetop 17% of all pairsSmell alikelowCooked together4,344 recipes
Shared aroma: beta-damascenone (apple, rose).
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Potato + sugartop 30% of all pairsSmell alikelowCooked together3,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Potato + hopstop 39% of all pairsSmell alikelowCooked together3 recipes
Shared aroma: myrcene (balsamic, herbaceous).
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Hops + coffeetop 43% of all pairsSmell alikelowCooked together1 recipe
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hops
- Add a bitter, aromatic flavour that characterises the beer.
- Potatoes
- Supply starch that the yeast can work on, adding body to the brew.
- Yeast
- Ferments the sugars, producing carbonation and alcohol as the mixture rises.
- Sugar
- Provides the sugar that the yeast consumes during fermentation.
The step that matters
Stirring in the yeast when the mixture is warm. Yeast is killed by high heat, so adding it to a mixture that is still hot can stop fermentation. The mixture should be only warm before the yeast goes in, so it stays alive and can start fermenting.
Swap the potato
How well each one fits the dish's main ingredients (hops, sugar, coffee):
- Mustardfits about as well
- Potatothe original
- Capsicumfits about as well
- Cucumberfits less well
Fit is the average pairing score against hops, sugar, coffee. Candidates are from the same food group and used in at least 100 recipes.
“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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