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Perpetual Yeast— Mrs. Briggs

A method for creating a long‑lasting yeast starter using compressed yeast, potato water, and sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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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 ↓

Perpetual Yeast— Mrs. Briggs

Ingredients

Directions

Make the starter

  1. Dissolve the yeast cake in ¼ cup of lukewarm potato water.

  2. Fill a quart glass can half full with lukewarm potato water.

  3. Add ½ cup of granulated sugar to the can and stir until dissolved.

  4. Add the dissolved yeast to the can and stir well.

  5. Place the can in a moderately warm place until it becomes very light.

  6. Seal the can.

Feed and rest

  1. The day before making bread, fill the sealed can with lukewarm potato water and add another ½ cup of sugar.

  2. Let it stand for about 24 hours before using.

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.

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

Compressed yeast cake
Provides the live yeast that ferments the sugar and makes the mixture rise.
Granulated sugar
Feeds the yeast, supplying the fuel it needs to produce gas and activity.
Potato water
Supplies the liquid medium in which the yeast dissolves and multiplies.

“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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