1. Extraction Is Difficult And Risky
Cashew nuts are popular for their flavor and texture, but the extraction process is so difficult and dangerous that touching them with bare hands can be dangerous. Cashews are typically grown in tropical areas such as Nigeria, Ghana, India, Vietnam, the Ivory Coast, and Sri Lanka.
The shell that surrounds cashew seeds contains toxic oils known as Anacardic acid. The pepper-like shells are extracted by hand, making the extraction process even more difficult. Poison ivy is a common source of anacardic acid.

2. Cashews are a foreign import in most countries.
Cashew trees can only grow in tropical climates, which means they are not suitable for the vast majority of the world's countries. Countries that do not have tropical climates must import cashews from tropical countries that have become major cashew exporters: Vietnam, India, Ivory Coast, Benin, Guinea-Bissau, Cape Verde, Tanzania, Mozambique, Nigeria, Indonesia, and Brazil. To complicate matters further, it takes two to three months for a cashew fruit to produce a cashew seed or cashew nuts suitable for human consumption. As a result, cashews are becoming increasingly scarce in a world that craves them.


https://www.youtube.com/watch?v=ViB5EKyWgNU