Japonica rice is thicker and shorter, the Cantonese call it "Fatty rice", the congee cooked rice is more soft, common northeast rice, pearl rice, Jiangsu round rice are all Japonica rice. Japonica rice has early, middle and late points, northern Japonica cool, southern Japonica warm; red Japonica hot, white Japonica cool; new Japonica hot, old Japonica cool. Congee is the most nourishing, suitable for both young and old. Black rice, crystal soft, produced in Chenggu County, Shaanxi Province. Black rice is the treasure of China's rice. Japonica rice contains a large amount of carbohydrates, about 79%, and is the main source of calories. The protein in Japonica rice is only 7%, but it is still an important source of protein because of the large amount eaten. Japonica rice contains essential amino acids is also more comprehensive, but also contains fat, calcium, phosphorus, iron and B vitamins and other nutrients.

Rice, also known as paddy rice, is a food made from the seeds of rice after cleaning, hulling, milling and finishing processes. Rice contains nearly 64% of the nutrients in rice and more than 90% of the nutrients needed by the human body, which can be divided into indica rice, round-grained rice and glutinous rice three. There are many ways to eat rice, people usually use stewing, steaming method to make rice into rice, or cook rice into porridge.