Yes, hing (asafoetida) should be stored in airtight, preferably double-lidded containers to preserve its potent aroma and prevent it from affecting other foods.
Hing, also known as asafoetida, is a pungent spice widely used in Indian cuisine. Its strong, sulfurous aroma is both its defining characteristic and its biggest storage challenge. If not stored properly, the aroma of hing can easily permeate other foods in your pantry, altering their flavor profiles. Furthermore, exposure to air can cause hing to lose its potency over time, diminishing its flavor and aroma. Double-lidded containers provide an extra layer of protection against air exposure and aroma leakage. The first lid creates an initial seal, while the second lid reinforces this seal, ensuring that the hing remains fresh and its aroma is contained. This is especially important if you store your spices in close proximity to other ingredients. Using airtight containers, whether single or double-lidded, is crucial for maintaining the quality and longevity of your hing.
If you don't have a double-lidded container, store your hing in a small, airtight container and then place that container inside a resealable plastic bag. This provides a similar level of protection against aroma leakage.