Your complete guide to coarse sea salt - discover how to store it properly, identify when it's gone bad, and find the best substitutes for your recipes.
Storage times and freshness tips for coarse sea salt in different conditions.
Safety first: This guide provides general information. When in doubt, throw it out! Trust your senses and err on the side of caution. If something smells, looks, or tastes off, don't consume it.
Coarse sea salt, being a mineral, does not 'spoil' in the traditional sense like perishable foods. However, its quality and usability can degrade. Signs of degradation include:
Always store coarse sea salt in an airtight container (glass jars, ceramic crocks, or sealed plastic containers are ideal) to prevent moisture absorption and keep out contaminants and odors. Keep it in a cool, dry place away from direct sunlight, stoves, or dishwashers, which can introduce humidity. While safe indefinitely, its texture and flavor can be compromised over time if not stored properly. If it's just clumpy from humidity, you can often dry it out in a low oven (e.g., 200°F/95°C for 15-30 minutes) and then crush it, but this won't remove absorbed odors or contaminants.