Why Do Spices Clump Together And Are They Safe To Use? - Tasting Table

Ground spices often clump because moisture in the air or from cooking steam causes granules to stick together, especially for finely ground spices like cinnamon, cumin, and cayenne. Whole spices and seeds typically resist clumping because they do not bind as tightly when exposed to moisture. Some ground spices with natural oils or those included in blends can form small clumps over time even without added moisture. Clumped spices are generally safe to use unless they are past their expiration dates and show clear signs of spoilage. Avoid shaking spices directly from the jar into hot, steamy pans, and keep spice jars away from heat and moisture. Use sealed containers and measure with a spoon to reduce exposure.

"Moisture in the air is the biggest culprit behind why ground spices begin to clump together, especially with finely pulverized spices like cinnamon, cumin, or cayenne. Whole spices and seeds, thankfully, tend not to bind together so closely when moisture is introduced to them. Some ground spices that have an abundance of natural oils, or are simply part of a spice blend, can also eventually begin to form small clumps over time, regardless of the moisture in the air."

"The good news is that unless they are well past their expiration dates and showing obvious signs of spoilage, ground spices that have clumped together in their jars are still completely safe to use and to consume. If you're guilty of shaking spices directly from the jar into a pot of simmering water or sauteeing aromatics, that's a major reason why they can start to meld together. The steam wafting up from the pan, even if it's barely a visible wisp, can make its way into the container and cause granules to cling to one another."

"The easiest way to keep your spices in tip-top shape is by keeping your jars away from the heat and moisture of the stove, and to use a measuring spoon when adding ground spices to a recipe. Even easier, if you don't need precise measurements, simply tip the jar directly into your palm and toss the seasonings into your dish that way. When storing spices, make sure that they are in airtight or well-sealed contai"

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