Original: Spanish national saffrongrading standards Grade ISO score Coupe > 190 La Mancha 180–190 Río 150–180 Standard 145–150 Sierra Higher absorbances at this wavelength imply greater crocin concentration, and thus a greater colourative intensity.
Simplified: Spanish federal saffrongrading standards Grade ISO score Coupe > 190 La Mancha 180–190 Río 150–180 Standard 145–150 Sierra Higher absorbances at this wavelength imply greater crocin concentration, and thus a greater colourative intensity.