Spice trade succeeds when buyers and suppliers speak the same language on purity, moisture, volatile oil and heat. For cumin and coriander, cleaning percentage and foreign matter limits matter as much as aroma. For turmeric, curcumin guidance and mesh size drive powder programmes. For red chilli, colour value and Scoville targets determine whether a lot fits retail or industrial grinding.
Ask for recent lot notes, packing format (25 kg bags or cartons) and whether stemmed or stemless chilli is required. Clear specs shorten negotiation and reduce rejection risk at destination.