Walnut Kernels
Put walnut kernels into a cloth bag and slightly crack them with
a wooden mallet into pieces the size of a regular peanut kernel.
Since walnut kernels contain lots of oil but few fibers, they are not
that easy to press. Make sure to add a few soybeans while pressing
walnut kernels. The amount you add should be based on getting a
normal amount of slag. To get better oil, heat walnut kernels with
moderate heat using the microwave oven for 2-3 minutes, or heat
them for 10 minutes using the oven but only turning on the upper
heating element at the temperature of 215 °F before pressing.
Good walnuts should be dark in color. Avoid walnuts that have
been bleached and seem overly clean. Bleached walnuts may
contain chemicals or preservatives and should not be used for oil
pressing. Pick walnuts with a dark color and heavier weight for the
best results in oil pressing.
It is suggested that you try a small amount first and then buy more
if they’re good. Store the newly pressed walnut oil at room tem-
perature for 24 hours. If the oil separates and subsides, the walnuts
were good ones. If the oil fails to separate and subside after four or
five days, change the raw material and try again.
Okra Seeds
Select mature and high-quality okra seeds for pressing. Okra seeds
are different from other oil plants because their shells are thick and
hard. Make sure to heat them on a low heat setting in the oven,
or by using the microwave oven for 2-3 minutes till they turn soft
before pressing. If the shells are already off, add a few soybeans to
the okra seeds. The amount you add should be based on getting
a normal amount of slag.
Pumpkin Seeds
Select plump and mature pumpkin seeds in small and medium
sizes (it’s hard to press very big ones). You may press them cold or
after heating, depending upon your preference.
Sunflower Seeds
The best sunflower seeds for oil are small and black and contain
a lot of oil. They can be pressed either unshelled or shelled. More
oil can be pressed if sunflower seeds are heated before pressing.
Please refer to the steps to press peanuts.
Summary of Contents for USSOILP1
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