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Bread

Flour Yeast

A yeast made by boiling flour, brown sugar, and salt in water, then cooling and bottling.

From an old cookbook · modernised transcription
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Why it works: Flour and sugar are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓

Flour Yeast

Ingredients

Directions

  1. Boil the flour, brown sugar, and salt in 2 gallons of water for 1 hour.

  2. When the mixture is milk-warm, bottle it and cork it tightly.

  3. Let it sit for 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. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Flour
Provides starch and nutrients that the wild yeast and bacteria feed on during fermentation.
Brown sugar
Adds a readily available sugar source that feeds the yeast and speeds up fermentation.

The step that matters

Cork the bottle tightly after cooling to milk-warm. Cooling to milk-warm before bottling keeps the temperature from killing the yeast, and a tight cork limits contamination by unwanted microbes while the mixture ferments.

“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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