What You Need to Know About Their Shelf Life Hazelnuts are delicious, nutrient-rich, and incredibly versatile—but like all natural foods, they don’t last forever. If you’re wondering, “Do hazelnuts go bad?” the answer is yes. However, proper storage can significantly extend their freshness and flavor. Understanding how long hazelnuts last, what signs of spoilage to look for, and how to store them can help you enjoy every bite without waste...