Cashew nut processing has evolved from a manual process to an automatic process over the years. Cashew processing in India is more than a century old, and it started exporting cashew kernel way back in 1924 from Karnataka.
During the initial days of cashew processing, Sun-dried Raw cashew nuts(RCN) was oil roasted in Cashew Nutshell oil and shelled manually to obtain the cashew kernel. Later the cumbersome process of oil roasting was replaced with drum roasting in which Raw Cashew Nuts were roasted in a rotating heated drum and then shelled manually to get the kernel.
In the late sixties, Raw Cashew Nut's steam roasting before shelling emerged as a batch process in Mangalore.In the seventies, manual shelling was replaced by and & leg-operated shelling machine in Goa.
Traditional convection heating of skin on kernel was replaced in the 1980s by tray driers with electronic digital temperature and timer controllers with fans to maintain uniform heat circulation in the tray drier all through the drying process.
Tin packing was replaced in the 1990s with a multi-layer bulk pouch packing system that ensured proper preservation and ease of handling with an increased shelf life of packed kernels.
The early part of this century saw the invention of motorizedshelling machines that revolutionized the hazardous shelling of RCN in a big way.
The tedious, slow manual peeling of skin on the kernel was replaced with a pneumatic peeling system assisted by high-pressure air nozzles to peel the skin of the cashews.
Thus, cashew processing grew from a cottage Industry to a mechanized Industry attracting multi-National companies investing in cashew processing.
This has caused erratic fluctuation in the Nut prices, attracting speculators entering nut trading in a big way in the recent past.
Depending on the production capacity, you will need
Hence the viability of Cashew Nut processing plants depends mainly on the procurement of Raw Nut at the right quality and price to have parity with edible kernel price produced in processing Raw Cashew Nut.
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