Harvesting and Processing Saffron
Saffron harvesting is time-critical. This page covers the harvest window, technique, drying, and storage in detail.
The Harvest Window Is 24 Hours
Flowers open in morning — harvest stigmas before noon on the same day.
The Harvest Window Is 24 Hours
Saffron crocus flowers open between 6am and 8am on clear cool mornings. The stigmas are at peak quality from opening until approximately noon. By afternoon the petals begin to close or wilt. Harvest every morning during the 2-week flowering period — check plants daily. A plant can produce 1 to 3 flowers in sequence during the flowering window.
Drying the Stigmas
Dry at 150 F for 15 to 20 minutes or air dry for 48 hours.
Drying the Stigmas
Spread fresh stigmas in a single layer on a piece of parchment paper. Dry in an oven set to its lowest temperature (around 150°F) for 15 to 20 minutes — the stigmas should be brittle when done. Alternatively, leave uncovered in a warm, dry location for 24 to 48 hours. Properly dried saffron is completely rigid and snaps rather than bends.
Grading and Storage
Grade by color and fragrance, store in airtight glass away from light.
Grading and Storage
Saffron is graded by crocin content (color), safranal (aroma), and picrocrocin (flavor). Home-grown saffron is typically high grade if harvested promptly. Store in a small sealed glass vial in a cool, dark cupboard. Properly dried saffron keeps 3 to 4 years. Test potency: a single thread dropped in warm water should turn the water golden yellow within 5 minutes.
A Small Harvest Is Still Worthwhile 50 corms produces roughly 150 threads — enough for 2 to 4 recipes. This quantity of high-quality fresh saffron costs $20 to $40 in a specialty store. The home-grown version, harvested fresh and dried immediately, has more aromatic compounds than older commercial saffron.