1, cashews on the market can be eaten directly without peeling. But cashews, like other nuts, have a hard shell outside each nut. However, cashew nut shells contain highly toxic and corrosive shell oil, which will corrode the skin. Therefore, manufacturers must shell to sell.

2. Cashew nuts, also known as chicken cashews, are evergreen trees native to Central and South America and can generally grow to about 10 meters high. It grows in a very special way. Generally, plant seeds grow in the pulp, or there is a layer of pulp outside. However, cashews are not. The seeds and pulp of cashew nuts are separated, only the top is connected.

3. The shell of cashew nuts is very special, not only hard, but also corrosive (weakly toxic). It is very irritating to the mouth, and you can't eat it without peeling it first (unhealthy and inconvenient). In addition, the adhesion between nuts and shells is very strong, which requires complete drying or high temperature baking to completely separate nuts from shells.