Saffron — the world's most expensive spice by weight — dominates the commercial value profile of this heading, with strict adulteration concerns driving FDA scrutiny at entry. Thyme and bay leaves, traded in dried whole-leaf and ground forms, serve food manufacturing and culinary retail markets, while saffron's thread versus powder presentation is a critical specification that affects both pricing and fraud risk. Importers of saffron in particular should be prepared for FDA sampling to verify authenticity and rule out adulteration with safflower, turmeric, or synthetic colorants. Classification and admissibility are complex — consult a licensed customs broker or FDA for guidance specific to your shipment.

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