Kašim

which consists of two large, diveted cutting board like things. Seeds/nuts are placed between them and they are rolled until the boards fall into the divets and are crushed down. This is repeated until the nuts/seeds are crushed up,

A Kašim is a tool invented by the Jatim around 1,200 years ago. It consists of stone. The top part is known as a Catimnac. A Catimnac is a cylinder with a triangular end. This triangular end fits into the bottom rock, the Tumuic, which is a very large slab of stone with a large central divet, with a hole out of the bottom so that any very fine powder will fall through. Underneath, a large flat fibre mat is placed to catch any powder. The way it works is grains or seeds are placed in the trough on the Tumuic, and the Catimnac is moved by many people on either side pushing and pulling it, grinding down the seeds into a powder which then falls out of the bottom to be collected and used. It can process large amounts of seeds in a very short time, but takes quite a bit of manual labour.

It took over 200 years to develop to its fullest, as it originated from two flat stones, to two diveted stones, to two diveted stones with a hole in the bottom, into a stone with one long trough and pestle and hole in the bottom. This tool is one thing that led to a huge diversification of food and population boom especially in the north where grains and other crops that withstand drought grow well but were difficult to process before.