What micro organisms are in marshmallows?

Marshmallows are primarily composed of sugar, water, and Gelatin, and they typically do not contain live microorganisms. However, they may contain bacteria and yeast from the manufacturing process or the environment, but these are generally minimal and not harmful. The high sugar content also acts as a preservative, inhibiting the growth of most microorganisms. As such, marshmallows are considered a low-risk food in terms of microbial contamination.