Hi Adrienne,
Thank you for sharing your feedback.
Yes, unfortunately, some of our spices and blends are susceptible to clumping due to freeze-dried ingredients reacting to humidity and natural moisture in other ingredients. We consciously avoid adding silicates and anti-caking agents to our spices and blends (like some spice companies do) which results in better-tasting spices with the peace of mind of not consuming foreign substances.
To keep your spices un-caked in the jars, we recommend a customer take off the sifter cap and use a butter knife or fork to gently break a clumped spice apart. In a Flatpack or bag, you can massage the spice to work the clumps out before opening it. You can also store that spice in the refrigerator which will provide a more arid environment hopefully preventing your spice from clumping again.
I hope this information was helpful, but if you are unsatisfied with your product or you need further assistance, please email our customer support team at support@thespicehouse.com
We are happy to help.