A kitchen utensil used for steaming food (e.g. bamboo steamer, metal or electric steamer).
蒸し器で野菜をふんわり蒸すと、栄養が保たれておいしい。
If you gently steam vegetables in a steamer, the nutrients are preserved and they're tasty.
中華まんを蒸すために蒸し器を用意した。
I prepared a steamer to steam the Chinese buns.
電気蒸し器は火を使わないので、初心者でも扱いやすい。
Electric steamers don't use an open flame, so they're easy for beginners to use.