Vahid Ohran (1) explaining about clay mixing and preparation

Vahid Ohran (1) explaining about clay mixing and preparation. In answer to a question he says that clay can be dry or wet when placed in the container for rehydration, but most of his clay is stored in bags in a dry state for convenience. He talks about the process of 'kiseli' ('souring' or rehydration) and says that he has three kinds of clay in the bags. He mixes two bags of dry clay (he says 60 kg/bag) with 5 small pots (he says of 1L capacity) of sand, then the mixture is mixed using a shovel 'the more the better'. He further says that the more clay is worked by hand - he demonstrates this with the clay in his hand - the better is is as material to work with. He then demostrates the milling machinw through which the clay is passed to furthe rhomogenise it and remove the stones - he shows how the distance between rollers can be adjusted with screws if there is a need to remove smaller stones, for example. The clay is milled three times before use, for a total of two hours. In past times it was mixed by foot. He then shows a spare rolling machine at the back of the workshop, where there are some axes and other tools hanging.