PURPOSE: To obtain a grain food suitable for something to take home, etc., having excellent originality and flavor of bamboo by laterally cutting a bamboo while leaving nods at both ends, longitudinally halving the bamboo to give a bamboo material, forming several through holes in the material, packing grain into the bamboo material and packaging.

CONSTITUTION: A bamboo W is laterally cut while leaving nodes W1 at both ends and the bamboo is longitudinally halved to give a bamboo material 1, which is provided with several through holes 2. The bamboo material 1 is packed with grain 3, which, for example, is obtained by solidifying rice grain 4 such as polished rice, etc., with a caking material 5 such as rice flour and molding into a cylindrical shape to give solidified rice 6 and packaged to give the objective grain food.