Here’s an easy experiment you can do at home to learn more about water activity (aw). For more details on water activity, check out my previous post. Moisture migrates from areas of high aw to areas of low aw until equilibrium is established. Here’s an extensive list of water activity values for common foods: https://onlinelibrary.wiley.com/doi/pdf/10.1002/9780470376454.app5 | Food Science Babe