Acetic acid is a quest item used in the Recruitment Drive quest. It is found during the Miss Cheevers challenge. The acetic acid is found along with many other useful ingredients, but is not necessary to complete the challenge. If used incorrectly, it may produce the strange tin.
Trivia[]
In real life terms, acetic acid is also known as vinegar with the chemical formula CH3COOH or C2H4O2.