Why it works: Potato and sugar are a kitchen classic. They rank in the top 30% of all ingredient pairs, and cooks put them together in 3,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓
Home-made Yeast
Ingredients
Directions
Make the starter
In a small preserving jar, combine the yeast, lukewarm potato water, and sugar.
Cover and let it stand in a warm place (about 90°F) for three hours to ferment.
Keep and refresh
If using some yeast, replace it with potato water and 1 tablespoon of sugar three hours before using.
Stir well before taking any yeast out.
If not used within a week, pour off half and replace with potato water and sugar.
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 + sugartop 30% of all pairsSmell alikelowCooked together3,032 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Yeast
- Its live cells ferment the sugar, producing gas that leavens the dough.
- Sugar
- Feeds the yeast, giving it fuel to ferment and stay active.
- Potato water
- Supplies moisture and nutrients that keep the yeast culture active.
The step that matters
Keep the starter warm while it ferments. Yeast activity depends on temperature. A starter that is too cold ferments slowly and may not rise dough well, while one that is too hot can weaken or kill the yeast cells.
“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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