1972 – Jan and Dad Putting the cones into sacks. The green cones are spread out over a floor of an oven.
Coke stoves provided a constant temperature of 49 °C. Due to the high temperature the cones open. By means of a shaking sieve the cones are shaken and the seeds fall out. Here you see my father and mother at work. This sieve is a modern version. Formerly everything was sieved by hand.
Peek under the sieve. Pine seed (uncleansed). Pine seed with coat.

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