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Drink

Sour Milk Whey

A beverage made by boiling sweet milk, adding sour milk, and straining the mixture.

From an old cookbook · modernised transcription
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Sour Milk Whey

Ingredients

Directions

  1. Boil the sweet milk.

  2. Add the sour milk to the boiling sweet milk.

  3. Strain the mixture.

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

Sweet milk
Forms the bulk of the liquid that the sour milk curdles when heated together.
Sour milk
Its acidity causes the milk proteins to curdle, separating solids from the whey.

The step that matters

Adding the sour milk to the boiling sweet milk. Acid in the sour milk must meet hot milk to curdle the proteins. Adding it to boiling milk helps the curds form firmly, so the whey separates clearly when strained.

“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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