It can typically last in the refrigerator for about 5 days when stored properly in an airtight container. To ensure its freshness and optimal taste, refrigerate the salsa promptly after making it and keep it tightly sealed. As with any homemade salsa, it's essential to use your best judgment and examine the salsa for any signs of spoilage, such as off odors or changes in color or texture. Be sure to look for those signs before consuming it after the recommended storage period. Enjoy your spicy zucchini salsa while it's at its freshest and most delicious!