Chunche

The building has a dark interior, and the walls are covered with a large number of holes to allow wind to pass through and assist in the drying process through evaporation.

The 19th-century Russian traveler, Grigory Grum-Grshimailo, wrote of Turpan: Turfan is famous for its raisins, which one can deem to be the best in the world.

[2] In Turpan, raisins are primarily produced from seedless white grapes.

[3] Some raisin producers are reported to buy grapes elsewhere (e.g. in Hami) and bring them to Turpan to dry in the local chunche, as this drying method is believed to produce a superior product.

[1] For 2009/2010, China's annual raisin production was forecasted by international expert at 155,000 metric tons (the largest in the world), of which 75% would come from Turpan.