Name: Milk Beer
Ingredients: 1 liter new milk; ⅙ liter water; rennet or sour koumiss

Milk Beer

Milk Beer is a fermented milk beverage made by diluting milk with water, adding rennet or sour koumiss, and allowing it to sit.

From an old cookbook · modernised transcription

From a historical cookbook (Internet Archive) · 3 ingredients

Milk Beer

Ingredients

1 liter new milk
⅙ liter water
rennet or sour koumiss

Directions

Dilute the new milk with water.
Add rennet or sour koumiss to the mixture.
Cover and let it sit in a warm place for 24 hours.
Stir or churn the mixture until the curd and whey are combined.

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

New milk: Provides the base liquid that curdles and ferments into the drink.
Rennet or sour koumiss: Causes the milk to curdle, starting the process that turns it into a fermented drink.

“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.