Real saffron can cost you over $10,000 per kilo. Here's what makes it so expensive

Even in the expensive world of spices, saffron stands out. And real saffron can cost you over $10,000 per kilogram. No machine can do the delicate work required to harvest these thin threads. And it can take 40 hours of hard manual labor to produce just 1 kilogram of high-quality saffron.