Saffron agents. It must, therefore, be stored away in air-tight containers to minimise contact with atmospheric oxygen. Saffron is somewhat more resistant to heat. Saffron is not all of the same quality and strength. Strength is related to several factors including the amount of style picked along with the red stigma. Age of the saffron is also a factor. More style included means the saffron is less strong gram for gram, because the colour and flavour are concentrated in the red stigmas. Saffron from Iran, Spain and Kashmir is classified into various grades according to the relative amounts of red stigma
History of saffron deities, and as a brilliant yellow dye, perfume, and a medicine. Thus, saffron threads would be scattered across beds and mixed into hot teas as a curative for bouts of melancholy. Indeed, Persian saffron threads, used to spice foods and teas, were widely suspected by foreigners of being a drugging agent and an aphrodisiac. These fears grew to forewarn travelers to abstain from eating saffron-laced Persian cuisine. In addition, Persian saffron was dissolved in water with sandalwood to use as a body wash after heavy work and perspiration under the hot Persian sun. Later, Persian saffron was heavily used by