||Image copyright Getty Images Image caption The spice saffron is known as "red gold" The spice saffron, as well as being famously expensive, is packed with antioxidants. It is said to help combat depression and lower blood pressure, to soften your skin and hair and is essential in a broad range of dishes from Swedish buns to paella. So what's stopping it becoming as fashionable as turmeric and cinnamon? Is it just its high price?In my palm I have five tiny strands, like pieces of slightly fraying dark red sewing thread, which smell rather like a fruity tobacco. Four of them I'm placing into a cup and dousing with warm water; they're destined for the cooking pot.