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Saffron Harvest in Khorasan — From Field to Drying and Grading
English
KhanumNargis

Created by

KhanumNargis

22. April 2026IR
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Saffron Harvest in Khorasan — From Field to Drying and Grading

Complete guide to harvesting saffron (Crocus sativus) in Iran's Khorasan province, which produces approximately 90% of the world's saffron. From identifying ready flowers at dawn, picking blooms, separating stigmas (three threads per flower), drying at 45-50°C, grading and proper storage. Saffron is the world's most expensive spice.
Intermediate
6-8 hours

Instructions

1

Identification of Saffron Plant

Saffron is obtained from the flower of the plant Crocus sativus. This plant is a perennial bulbous plant from the Iridaceae family. Each bulb (corm) produces 1 to 3 purple flowers in autumn. Each flower has exactly 3 red-colored stigmas (stigma) which is the commercial saffron. To produce 1 kilogram of dried saffron, approximately 150,000 to 200,000 flowers are needed.

2

Identify the harvest time

The saffron harvest season in Iran runs from mid-Mehr to mid-Aban (early October to early November) and lasts about 2 to 3 weeks. Flowers must be picked before sunrise or in the early morning — when the petals are still closed or half-open. Direct sunlight reduces stigma quality and causes the volatile aromatic compounds to evaporate.
3

Prepare harvesting tools

Prepare woven or perforated plastic baskets so that the flowers are not crushed and air can circulate. Do not use metal containers as they react with the moisture from the petals. Thin cotton gloves are recommended to prevent contamination of the stigmas. Also have a damp cloth ready to cover filled baskets.

Tools needed:

Wicker Harvesting BasketsWicker Harvesting Baskets
Thin Cotton Gloves
Damp Cloth CoverDamp Cloth Cover
4

Pick the flowers at dawn

Begin harvesting before sunrise (around 5 to 6 AM). Pick the flower from the base of the stem, close to the soil surface. Grasp the stem between thumb and forefinger and gently pull — do not cut. A skilled worker can pick approximately 300 to 500 flowers per hour. Place the flowers gently in the basket without pressing.

Materials for this step:

Fresh Saffron Flowers (Crocus sativus)Fresh Saffron Flowers (Crocus sativus)500 flowers

Tools needed:

Wicker Harvesting BasketWicker Harvesting Basket
5

Quickly transport flowers to the processing site

Picked flowers must be transported to the stigma-separation site within 2-3 hours after harvest. Delay causes wilting and quality loss. Cover the baskets with moist cloth and avoid direct sunlight. The processing site must be clean, dry, and away from direct light.

Tools needed:

Damp Cloth CoverDamp Cloth Cover
Clean Processing AreaClean Processing Area
6

Open the petals

Hold the flower between the thumb and index finger of the left hand. Gently open the purple petals with the right hand. Each flower has 6 purple petals, 3 yellow stamens, and 3 red stigmas. Be careful not to damage the stigmas. The petals and stamens have no commercial value, but the petals can be used as compost.
7

Separate the stigmas

Separate the three red stigma strands with the thumbnail and index finger from where they attach to the style. The cut must be precisely at the attachment point — if the yellow style portion remains with the stigma, the saffron grade is lower. Place the separated stigmas on a clean tray. A skilled worker can separate stigmas from about 400-600 flowers per hour.

Tools needed:

Clean Flat TrayClean Flat Tray
Tweezers (optional)Tweezers (optional)
8

Initial classification of saffron threads

Separate the saffron threads based on length and color. Complete dark red threads (without yellow section) have the highest quality and are called "Sargol" or Negin. Threads that have a slightly yellow section are called "Pushal". Broken or crushed filaments should be kept separately. This classification has a significant impact on the final price.

Tools needed:

Sorting TraysSorting Trays
9

Dry the stigmas — traditional Iranian method

Spread the stigmas in a thin single layer on a fine metal sieve or silk mesh. Place the sieve over a gentle heat source. The ideal temperature is 45-50 degrees Celsius — never exceed 60 degrees because the volatile compounds (safranal) will be destroyed. Drying time is 15-20 minutes at this temperature. The stigmas should become brittle and crisp.

Materials for this step:

Fresh Saffron StigmasFresh Saffron Stigmas1 batch

Tools needed:

Fine Metal Mesh ScreenFine Metal Mesh Screen
Heat SourceHeat Source
ThermometerThermometer
10

Quality assessment of drying

Dried saffron should be brittle and break with finger pressure — not bend. The color should be dark red with a brownish tint. If the saffron threads are still flexible, they should be dried longer. The weight of saffron after drying will be approximately 20 percent of its fresh weight (a ratio of 5 to 1 fresh to dry weight). The smell of dried saffron should be fragrant and mild.

11

Final grading of saffron

Iranian saffron is divided into 4 main grades: Negin — long, complete, dark red stigmas without any yellow, the highest quality. Sargol — the red tips of stigmas without the root. Pushal — stigmas with part of the yellow style attached. Dasteh — complete stigmas with roots tied together in bundles. Coloring strength (crocin) above 250 units on the ISO 3632 standard indicates premium quality.

Tools needed:

Sorting TraysSorting Trays
Precision Scale (0.01g)Precision Scale (0.01g)
12

Saffron Authenticity Test

Place a few saffron threads in cold water. Authentic saffron slowly (10 to 15 minutes) releases a golden yellow color and the threads remain red. Counterfeit saffron immediately releases red color and the threads become colorless. Also, rub it between wet fingers — authentic saffron gives a golden yellow color, not red.

Materials for this step:

Clean Cold WaterClean Cold Water100 milliliter

Tools needed:

Small Glass BowlSmall Glass Bowl
13

Package the saffron

Place the dried saffron in dark-colored glass containers (brown or blue) or lidded metal tins. Minimize air inside the container. Never use plastic containers because they absorb moisture and odors. Label with harvest date, grade, weight, and production region.

Materials for this step:

Dark Glass Jars with Airtight LidsDark Glass Jars with Airtight Lids5 pieces
LabelsLabels5 pieces
14

Proper saffron storage

Store saffron in a dry, cool (15-20 degrees Celsius) and dark place. Keep away from direct sunlight, moisture, and strong odors. Under proper conditions, saffron maintains its quality for up to 3 years, but the best aroma and flavor are in the first year. Never store saffron in a refrigerator because refrigerator moisture causes mold. Ground saffron loses quality faster — always store in thread form.

Tools needed:

Cool Dark Storage AreaCool Dark Storage Area
15

Calculate yield and record information

Typical yield: approximately 1 kilogram of dry saffron is obtained from every 150,000 flowers. Each hectare of land (with a density of 50 corms per square meter) produces approximately 3 to 5 kilograms of dry saffron. Record the final weight, number of flowers, harvest date, and climatic conditions. This information is essential for improving the harvest in subsequent years.

Tools needed:

Field NotebookField Notebook
Precision Scale (0.01g)Precision Scale (0.01g)

Materials

5

Tools Required

14

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