A lot of people think saffron is just an expensive spice for coloring rice. But the truth is, it is also the most faked spice in your kitchen. It costs more per gram than silver, so cheap imitations are everywhere. If you want to know whether your saffron is real, drop a single thread into warm water. Real saffron releases its color slowly, over minutes. A fake one that has been dyed will stain the water instantly. Look at the shape, too. A real stigma flares at one end like a little trumpet, and no two threads look exactly the same. The fake ones tend to be too uniform.
People often ask whether saffron can do anything for your memory. The research interest here comes down to two compounds in the spice, crocin and safranal. These are the same things that give saffron its color and smell. Some studies have looked at whether these compounds can help with age-related memory problems. The results are not dramatic, but they are promising enough that saffron shows up in many supplements. The dose in a supplement is usually much smaller than what a recipe calls for. So taking a pinch in your food is not the same as taking a supplement.
Another common question is whether saffron is safe to take every day. For most people, eating it as a spice is fine. But supplements can be stronger, and too much can cause side effects like dizziness or a dry mouth. Pregnant women are often told to avoid large amounts because it can stimulate the uterus. The general advice is to stick with small amounts, like a few threads in a dish, and talk to a doctor before taking a supplement regularly.
Some people ask if saffron can help with mood. There is some research that suggests it might, again because of those two compounds. But the effects are modest, and it is not a substitute for professional help. It works best as part of a healthy diet, not as a quick fix.
Finally, people wonder how to store saffron to keep it fresh. Keep it in a sealed container away from light and heat. It does not spoil, but it does lose its potency over time. Real saffron can last a few years if stored well. The fake stuff tends to lose its color and smell much faster. So if your saffron smells like nothing, or if it tastes bitter, you might have been sold a fake.
A closer look is at saffron research notes.