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Casein Powder from Soured Skim Milk
Charlie

Created by

Charlie

17. October 2026DE
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Casein Powder from Soured Skim Milk

Casein is the milk protein of early plastics such as Galalith, of casein glue and of casein paint. Skim the milk, let it sour until the casein drops out as curd, wash and press the curd, then dry it and grind it to powder. The picture: our diagram, skimmed milk, soured curd, dry powder.
Beginner
3 days

Instructions

1

Skim

Let the milk stand in a wide pot in a cool place overnight and skim off all the cream that rises.

Materials for this step:

Whole MilkWhole Milk10 liters

Tools needed:

Large Cooking PotLarge Cooking Pot
Skimming LadleSkimming Ladle
2

Sour

Keep the skimmed milk in a warm place until it sours and the casein separates as curd from the clear whey.

Tools needed:

Large Cooking PotLarge Cooking Pot
3

Wash

Pour off the whey through cheesecloth in a colander. Stir the curd in clean water and drain it again; repeat until the water runs clear.

Tools needed:

CheeseclothCheesecloth
ColanderColander
Wooden SpoonWooden Spoon
WaterWater
4

Press

Wrap the curd in the cloth and press out the water.

Tools needed:

Cheese PressCheese Press
CheeseclothCheesecloth
5

Dry and grind

Crumble the curd thin on a tray and dry it until hard and brittle. Grind it in the mortar, sift, and keep it airtight.

Tools needed:

Flat Drying TrayFlat Drying Tray
Mortar and PestleMortar and Pestle
Fine SieveFine Sieve
Balance ScaleBalance Scale
Airtight Storage ContainersAirtight Storage Containers
6

Casein from your milk

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Materials

1

Tools Required

12

This blueprint makes

Thumbnail
Placeholder

Casein Powder

Free

2
0
1

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CC0 Public Domain

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