Qianshigu is a convenient rice jointly developed by Rizhao Juxian Jinsui Industry and Trade Co., Ltd. and Ocean University of China, and it is also the only brand in China that uses brewed rice as its main product. Jinsui Industry and Trade is a designated enterprise for the production of military rations in Shandong Provincial Military Supply Center, and has a national invention patent "a ready-to-eat cooked rice and its production method". This technology scientifically proportions sorghum, corn, red beans, buckwheat, barley, oats, barley and other grains into instant rice products packaged in bags after scientific proportioning, low-temperature aging, and granule reconstruction. In 2013, Qianshigu won the gold medal of the China International Food and Beverage Exhibition.
 
There are only three flavors of instant rice in Qianshigu, there are fewer choices, but the price is low, a meal with a net content of 224g costs 6 yuan, and the eating method is to brew with boiling water and wait for 10 minutes to eat. Depending on the amount of water added, the soaked rice will taste soft and glutinous or dry and hard, so the curry beef sauce should be stirred evenly with the rice to make it more delicious and delicious. Sengokuya also sells bagged instant rice separately, which is quite convenient to carry.