Vinegar, which is an acidic solution primarily composed of acetic acid, is not known to significantly dissolve or degrade common plastics. Most plastics, such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET), are generally resistant to acids, including vinegar.
However, prolonged exposure to vinegar or other acids may cause some minor changes in certain types of plastics. For example, it might lead to slight softening, discoloration, or surface etching in certain plastics, particularly those that are more sensitive to acids or have a lower resistance to chemical solvents. These effects are usually minimal and vary depending on the type and quality of the plastic.
It is worth noting that if you are specifically looking to dissolve or degrade a plastic, vinegar is not a suitable choice. Instead, you would need to use specific solvents or chemicals that are known to have an effect on the particular type of plastic you are working with.