Dry spice mixes can be stored in paper pouches, but it's not the ideal long-term storage solution due to potential moisture absorption and aroma loss. Airtight containers are generally preferred.
While paper pouches might seem convenient for storing dry spice mixes, several factors make them less suitable than other options, especially for long-term storage. Paper is porous, meaning it allows air and moisture to pass through. This can lead to the spice mix absorbing moisture from the environment, causing clumping and a loss of flavor potency. Additionally, the volatile oils that give spices their aroma can evaporate through the paper, diminishing the overall quality of the spice mix over time. For optimal storage, airtight containers made of glass, metal, or high-quality plastic are recommended. These materials create a barrier against moisture and air, preserving the flavor and aroma of your spice mixes for a longer period. Consider using opaque containers to further protect the spices from light, which can also degrade their quality.
If you must use paper pouches temporarily, double-bag the spice mix and store the pouch inside a larger airtight container to provide an extra layer of protection against moisture and air.