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Drink

Whey From Rennet

A method for making whey by adding rennet to milk and allowing it to curdle.

From an old cookbook · modernised transcription
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Whey From Rennet

Ingredients

Directions

Make the curd

  1. Add the rennet to the milk.

  2. Gently heat the mixture to 100°F (38°C).

  3. Let it stand in a warm place for 30 minutes.

Strain

  1. Strain through muslin.

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

Milk
Provides the proteins that coagulate into curds, separating the liquid whey from solids.
Rennet
Enzyme that clots the milk proteins into a firm curd, releasing the whey.

The step that matters

Let it stand in a warm place for 30 minutes. Rennet needs warmth and undisturbed time to clot the milk proteins. Too cold and the curd forms slowly or not at all; stirring or moving it can break the forming curd apart and cloud the whey.

“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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