Vinegar Syndrome

Recognize vinegar syndrome

Source: The Film Preservation Guide. NFPF. Page 14

When improperly stored, acetate film will discolor, giving the film a pinkish hue.

Example of Vinegar Syndrome Film

As acetate film decays, it shrinks, loses flexibility, curls, and warps.


A-D Strips are used to determine the state of the film on a scale from no deterioration to critical deterioration.

Blue= no deterioration
Light Green= actively deterioration
Yellow= Critical condition

AD Strips:
A-D strips in use, testing for vinegar syndrome Source: