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Potato Yeast

A yeast starter made by mixing grated potatoes with boiling water, sugar, salt, and yeast.

From an old cookbook · modernised transcription
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Potato Yeast

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 ↓

Potato Yeast

Ingredients

Directions

Prepare the mixture

  1. Pour boiling water over the grated potatoes.

  2. Add sugar and coarse sea salt while the mixture is hot.

Add yeast and rise

  1. Let the mixture cool, then add the yeast.

  2. Keep in a warm place until light and foaming.

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.

Photo for illustrative purposes only · Contact us to use it

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. Potato + sugartop 30% of all pairs
    Smell alikelow
    Cooked 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

Potatoes
Supply starch and moisture that the yeast can feed on.
Sugar
Feeds the yeast, fuelling fermentation and sweetness.
Yeast
Ferments sugars into gas, making the mixture rise and foam.

The step that matters

Let the mixture cool before adding the yeast. Yeast is killed by very hot liquid, so the mixture must cool enough that it will not harm the yeast before fermentation can begin.

“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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