In order to realize one fifth of Green-House Gas (GHG) on 2050, the food industry is not an exception in the reduction of GHG. The environmental evaluations are also needed against the food industry, such as agriculture, fishery, food production, distribution, consumption, disposal and recycle, by utilization of Life Cycle Assessment (LCA) and Carbon Foot Print (CFP). Moreover, the estimation and revolution of technology by thermal engineering will contribute the reduction of GHG and the food industry toward sustainable low carbon society, by the utilization of renewable energy, evaluation of environmental impact, plant factory, food production, processing and cooking food.