All about Pumpkin Seed Oil
Pumpkin Seed Oil's colour - Green, Red or Black?
One of the most fascinating things about Pumpkin Seed Oil is the colour! When first looking at it most people think it looks like balsamic vinegar as it can look almost black in a clear glass bottle, however if you look at it from the right angle it can have a reddish sheen to it and THEN when you put it on a salad or white plate it comes up a very dark green colour! So what colour actually is it?
Well, its actually two colours. The technical term for this type of colouring is Dichromatic or Polychomatic. A study at the University of Slovenia found that "When the layer of oil is less than 0.7 millimeter thick," the study notes, "the oil appears bright green, and in [a] layer thicker than this, it appears bright red." It all has to do with light waves passing through the oil and how our eye receptors process colours. For more detail you can view the article called "Traffic Light on a Spoon" on the Scientific American website.
