Storing in vinegar would catalyze and accelerate the decomposition of the acetate. And once it starts, it can’t be stopped. To prevent decomposition, use breat

Storing in vinegar would catalyze and accelerate the decomposition of the acetate. And once it starts, it can’t be stopped. To prevent decomposition, use breathable enclosures and store in a low temperature and low relative humidity. Proper storage and handling practices, particularly using gloves and storing in low light environments, can prevent vinegar syndrome almost entirely. These are learnings gleaned from those involved in the historical preservation of acetate photographic films.