Interesting Saffron Facts

To glean 1 lb (450 g) of dry saffron requires the harvest of 50,000–75,000 flowers; a kilogram requires 110,000–170,000 flowers.[43][44] Forty hours of labour are needed to pick 150,000 flowers.[45] Stigmata are dried quickly upon extraction and (preferably) sealed in airtight containers.[46] Saffron prices at wholesale and retail rates range from US$500 to US$5,000 per pound, or US$1,100–11,000/kg. In Western countries, the average retail price in 1974 was $1,000 per pound, or US$2,200 per kilogram.[4] In February 2013, a retail bottle containing 0.06 ounces could be purchased for $16.26 or the equivalent of $4,336 per pound or as little as about $2,000/pound in larger quantities. A pound contains between 70,000 and 200,000 threads. Vivid crimson colouring, slight moistness, elasticity, and lack of broken-off thread debris are all traits of fresh saffron.

https://en.wikipedia.org/wiki/Saffron