Leave Moldy Apples at the Store
Visible mold is a reason to pass on an apple. Check its skin and smell, then refrigerate sound fruit and wash it under running water just before eating.
Food Storage Safety 1 article
Food Storage Safety explores refrigeration, freezing, leftovers and storage timelines that affect food quality and safety. The useful frame includes refrigeration and freezer temperatures, storage time, cooling, thawing, leftovers, container practices, spoilage versus pathogen risk, and when official guidance supports discarding food rather than relying only on smell or appearance. Storage time, temperature, thawing, refrigeration, and leftovers define this topic; broader meal-prep logistics belong elsewhere when safety is not the main question.