Your complete guide to coarse 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 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 salt does not truly 'spoil' in the sense of becoming unsafe to eat due to microbial growth, as it's a mineral and a natural preservative. However, its quality can degrade. Signs of quality degradation include: excessive caking or hardening due to moisture absorption, discoloration (e.g., yellowing, graying, or presence of foreign specks), absorption of strong odors from surrounding foods or chemicals, or the presence of foreign material (e.g., dust, insects).
Visually inspect the salt for any discoloration or foreign particles. Check for excessive caking; while some caking is normal and can often be broken up, extreme hardness might indicate prolonged exposure to high humidity. Smell the salt; it should have no discernible odor. If it smells musty, chemical, or has absorbed other food odors, its quality is compromised. A small taste test (if visual and smell tests are clear) can confirm if it still tastes pure and salty without off-flavors.
The primary enemy of salt is moisture. Always store coarse salt in a truly airtight container (glass jars with tight-fitting lids, or durable plastic containers) to prevent clumping and maintain its free-flowing texture. Avoid storing it near sources of steam (like kettles or stovetops) or strong-smelling items (like spices or cleaning products) as it can absorb moisture and odors. If it does cake, it's still safe to use; simply break it up with a spoon or mortar and pestle. Discolored salt or salt with strong off-odors should be discarded as it indicates contamination.