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Walnut Oil: Kernels Cold-Pressed, Settled and Filtered
Walnut oil is pressed from walnut kernels. It is a drying oil: in air it hardens into a strong, flexible film, and its short drying time and lack of yellow tint suit oil paint. Crack the nuts, press the kernels cold, let the oil settle and filter it.
The picture: our diagram of the screw press.
Beginner
A day plus settling
Instructions
1
1
Crack
Crack
Crack the walnuts with a hammer on a flat stone and pick out the kernels. Weigh them.
Materials for this step:
Walnut2.5 kgTools needed:
Hammer
Flat Stone Slab
Bowl
Balance Scale2
2
Press
Press
Feed the kernels through the screw press and catch the oil in a jar.
Tools needed:
Manual Screw Oil Press
Glass Jars with Lids3
3
Settle and filter
Settle and filter
Leave the oil to settle for a few days, pour it off the sediment and filter it through paper into a dark bottle. Keep it cool, as nut oils can turn rancid.
Tools needed:
Glass Jars with Lids
Coffee Filters / Filter Paper
Kitchen Funnel
Amber Glass Bottle4
4
Oil from your kernels
Oil from your kernels
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Tools Required
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