Not all leftovers are safe to reheat and eat the next day. While many dishes can be stored and enjoyed later without issue, certain foods are especially prone to spoilage, chemical changes, or bacterial growth — and could pose real health risks if not handled properly.

Let’s take a closer look at which items are better eaten fresh and why they’re best avoided after sitting overnight.

Mushrooms & Wood Ear Fungus

Mushrooms and wood ear fungus are delicate ingredients that should ideally be consumed the same day they’re cooked. These foods contain complex proteins and elevated nitrate levels. When left too long or reheated, they can begin to break down into potentially harmful compounds. Some people may also experience digestive discomfort or nausea after consuming them cold or reheated.

Leafy Greens (Like Spinach)