What happens to a gummy bear in vinegar?

When a gummy bear is placed in vinegar, it undergoes a process called osmosis. The vinegar, which is acidic, causes the Gelatin in the gummy bear to break down, leading to the gummy bear swelling and becoming softer as it absorbs the liquid. Over time, the gummy bear may lose its shape and become mushy, as the acetic acid in the vinegar interacts with the ingredients in the candy.