What this category is actually bought on
A dried herb specification usually lists moisture, ash, extraneous matter and a microbiological panel. All four describe what should not be in the pack. Only one parameter describes what the buyer is paying for, and it is the one most often omitted: the volatile oil content, determined by hydrodistillation and reported on a dry basis.
That omission explains most of the disappointment in this category. Two lots can pass an identical specification and deliver visibly different flavour, because nothing measured the aroma.
The four product records
Dried dill and dried parsley are leaf products where cut size, colour and leaf-to-stem ratio decide acceptance. Dried oregano is the commodity with an actual Codex standard behind it and the species question that comes with the name. Coriander seed is a field-dried seed where the botanical type determines both the volatile oil content and the market it sells into.
The decisions behind the specification
Three guides carry the working detail. Herb drying and essential oil retention explains where the aroma goes during processing and how to specify retention. Dried against freeze-dried herbs works through the format premium and when it is recoverable. Irradiation rules for spices in the EU sets out what is legally permitted, what has to be declared, and how saturated steam compares.
Where Vorezan sits
Vorezan is an information resource, not a seller, a broker or a certifier. These pages set out how the category is specified and traded so that a buyer can write a better contract and ask better questions. They do not replace the consolidated text of any legal instrument, the current revision of any trade reference, or professional advice on a specific consignment.