How does high moisture affect the shelf life of peanuts?

High moisture levels in peanuts can lead to mold growth, which significantly shortens their shelf life. When peanuts contain excessive moisture, they create an environment conducive to the growth of molds and fungi. These organisms thrive in humid conditions, and their presence not only compromises the quality of the peanuts but can also lead to the development of mycotoxins, which are harmful to health.

Additionally, high moisture can also affect the peanuts' texture and flavor. Peanuts with high moisture levels are more likely to spoil quickly, as they do not maintain their optimal freshness and edibility over time. Proper storage in dry conditions is critical for preserving the quality and safety of peanuts, highlighting the importance of controlling moisture levels to ensure a longer shelf life.

The other options are inconsistent with how moisture affects peanuts. While high moisture does not extend shelf life or have no effect, it is clear that significant moisture introduces risks that lead to spoilage and diminished quality.