脱だつ酸さん素そ剤ざい

noun

oxygen absorber; oxygen scavenger

A small packet placed in packaged food to absorb oxygen and prevent oxidation; commonly found in snacks like senbei or dried foods.

• せんべいの袋ふくろに脱だつ酸さん素そ剤ざいが入はいっている。

  There is an oxygen absorber inside the rice cracker bag.