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Yeast That Will Not Sour

A yeast mixture that does not sour, made with boiling water, sugar, and fresh yeast cake.

From an old cookbook · modernised transcription
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Yeast That Will Not Sour

Ingredients

Directions

Make the yeast mixture

  1. Boil the water.

  2. Pour the boiling water into a bright vessel.

  3. Add the sugar to the water and stir until dissolved.

  4. When cool, add the fresh yeast cake.

Rise

  1. Set the mixture in a warm place for a few hours to rise.

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

What each ingredient does

Fresh yeast cake
Ferments the sugar, producing gas that makes the mixture rise and become airy.
Sugar
Feeds the yeast, giving it the fuel it needs to ferment.

The step that matters

When cool, add the fresh yeast cake.. Yeast is killed by very hot liquid, so the water must have cooled before the yeast goes in. Adding it too early can stop fermentation entirely.

“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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