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Tung Oil Pressed from the Seeds of Tung Nuts
Tung oil, a wood finish used in China since Confucius's day, is pressed from the seeds inside the nuts of the tung tree. It is a drying oil: thin coats harden in the air over 5 to 30 days to a matte or satin finish with a golden tint. Rags soaked in it can heat up and catch fire as they dry.
The picture: a tung leaf with two nuts.
初学者
Two days
说明
1
1
Crack the nuts
Crack the nuts
Crack the tung nuts on a flat stone or with a nutcracker and pick out the seeds. Spread the seeds on a tray to dry for a few days (ours).
此步骤所需材料：
油桐果4 公斤所需工具：
扁平砸击石
胡桃夹
平底干燥盘
橡胶手套2
2
Press
Press
Weigh the dry seeds and feed them through the screw oil press, catching the oil in a jar.
所需工具：
手动螺旋榨油机
数字厨房秤
带盖玻璃罐3
3
Settle and filter
Settle and filter
Let the oil stand a few days for the sediment to settle, then pour it off through a filter into a clean jar and close it. Weigh it for the notebook.
所需工具：
厨房漏斗
咖啡滤纸 / 滤纸带盖玻璃罐数字厨房秤4
4
Rags
Rags
Drop oily rags and press cloths into a bucket of water, or spread them flat outdoors to dry: bunched up, they can self-heat and catch fire.
所需工具：
淬火水桶
水5
5
Yield
Yield
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