Valuable information about pistachio nuts
Pistachio nuts are single-seeded fruits from the pistachio tree and from the Sumac family, which is native to the Mediterranean region.
Pistachios have thin leaves and a 1 to 2 cm thick core, which has a hard, light brown shell that opens when ripe. The kernels have a thin brown layer around them. The pith coat contains antioxidants that protect the seeds from oxidation rich in atmospheric oxygen to prevent yellowing (oxidative microstructure). After harvesting the brain cover, bright green seeds are a sign of fresh nuts.
There are many varieties of pistachios, also known as green almonds.