調理機器の変遷と調理性能の向上

抄録

　Many of the improvements in cooking appliance performance were achieved in Showa era. The changes and improvements history of typical cooking appliances in the Heisei era were as follows.

　Refrigerator-freezer: Revolutionary energy-saving effect was achieved by covering the outer wall with a vacuum insulating material that has a high heat-insulating effect. Gas stove (cooktop) : Standard equipped with Si (Safety and Intelligent) sensor that promises safety. IH cooking heater: Released all-metal cooking heater that can use aluminum and copper pots. Microwave oven: Released flat type without turntable, and water oven that bake foods with heated steam. Bread maker: Released bread maker that makes bread from rice grains. Dishwasher: Released compact, low-priced tabletop type. Hot water supply: Released high-efficiency water heater that produces hot water with a small amount of electricity or gas.

　As of 2015, cooking appliances with penetration rate of 90% or more were refrigerators, microwave ovens, steam rice cookers, 60% or more were toaster ovens, electric griddles, electric kettles, and 30% or more were juicers, coffee makers, dishwashers.