Packaging varies by product and includes breathable barrier plastic bags, non-barrier plastic jars, PET jars, and poly bags.
Fresh curry leaves typically last 3–5 days (up to a maximum of about 7 days). Product details advise keeping them refrigerated.
Ground and powdered curry leaf products are offered as curry leaf powder or ground curry leaf. At least one product description states the powder is made from dried curry leaves and may include other spices such as turmeric and coriander.
Descriptions recommend sautéing and softening the leaves in ghee (clarified butter) and then adding them to hot liquid or sauce so they release their flavor; they can also be used as a garnish or added directly to broth.
Some product listings show the origin as "Product of USA," while others list "Product of India."