Potato Starch
Ingredients
Directions
Extract the starch
Grate the raw potatoes.
Pour cold water over the grated potatoes and mix thoroughly.
Strain the mixture through a cloth into a large pan.
When the starch has settled, pour off the water.
Add fresh water and mix thoroughly.
Let it settle again.
Pour off the water.
Dry
Dry the starch on brown paper in the sun or a slightly heated oven.
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
- Raw potatoes
- Supply the starch, which is released when the grated potato is washed and settles out of the water.
- Cold water
- Washes the starch out of the grated potato and lets it settle as a heavy layer.
The step that matters
Pour off the water only after the starch has settled. If the water is poured off too early, starch grains are lost with it. Waiting until they settle to the bottom keeps the starch, and repeating the wash removes remaining plant material and impurities.
“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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