Short answer: Saffron’s colour, aroma and taste come from three natural compounds: crocin, safranal and picrocrocin. Researchers are studying these compounds, but most studies use concentrated extracts rather than the small amounts used in cooking, and the results are not conclusive. In food, saffron’s clearest benefit is that it adds colour, aroma and flavour without artificial colouring.
Saffron has been used in kitchens across Persia, India, the Middle East and Spain for centuries. This article explains what saffron is, what gives it its character, what research does and doesn’t show, and how to enjoy it safely.
What is saffron?
Saffron is the dried stigma of the Crocus sativus flower. Each flower has only three stigmas, and every one is picked by hand. It takes around 75,000 flowers to make a pound of saffron (CulinaryLore), roughly 150–170 flowers for every gram. That is why saffron is the most expensive spice in the world by weight.
The three natural compounds in saffron
| Compound | What it does |
|---|---|
| Crocin | Gives saffron its golden-yellow to orange colour |
| Safranal | Gives saffron its aroma. It forms while the stigmas are dried. |
| Picrocrocin | Gives saffron its slightly bitter taste |
Saffron quality is judged on these three properties (International Society for Horticultural Science). The international standard ISO 3632 measures them in the laboratory and grades saffron into categories, with Category I the highest. Persian Signature’s Super Negin saffron is ISO 3632 Category I.
Benefits in the kitchen
- Natural colour. A few threads turn rice, sauces and desserts golden without artificial food colouring.
- A unique aroma. No other spice smells like saffron. Turmeric can give a similar colour, but not the same flavour. See how saffron differs from turmeric and safflower.
- A little goes a long way. About 15–20 threads are enough for a dish for four people. Read our guide on how to use saffron.
- A long food tradition. Saffron is part of Persian rice dishes, biryani, Spanish paella and many festive desserts.
Saffron in food traditions
- Persia (Iran): saffron rice with a golden crust (tahdig) and the saffron rice pudding sholeh zard.
- India and Pakistan: biryani, kheer and festive sweets.
- The Gulf and Middle East: saffron in rice dishes and in Arabic coffee.
- Spain: paella.
- Malaysia: many families add saffron to festive rice and sweets for Hari Raya, weddings and kenduri.
Saffron spice and saffron supplements are not the same
| Saffron as a spice | Saffron supplements | |
|---|---|---|
| Form | Whole threads | Capsules or tablets of concentrated extract |
| Typical use | A few threads to colour and flavour food | A fixed daily dose |
| What it is for | Cooking | Sold as a supplement; often the form used in research |
Persian Signature sells saffron threads for cooking, not supplements. If you are thinking about taking a saffron supplement, speak to a doctor or pharmacist first.
What does research say?
Researchers are studying the possible properties of saffron’s natural compounds. However, most of these studies are small, many use concentrated saffron extracts rather than saffron as a cooking spice, and their results are not conclusive.
Persian Signature Saffron is a food spice. It is not intended to diagnose, treat, cure or prevent any disease.
Food amounts and large amounts
A fact-check by The Star in October 2026 summarised the safety picture (The Star):
- Up to about 1.5g a day is generally considered safe. Recipes usually call for far less than that.
- More than about 5g a day has been linked to serious side effects.
In everyday cooking you use only a small fraction of a gram per dish, so normal food use stays well below these levels.
Who should be careful?
- Pregnant women. Large amounts of saffron have been linked to uterine contractions. The evidence is limited, so caution is wise.
- Breastfeeding mothers.
- People taking medication, including blood-thinning medicines.
- Anyone with a health condition.
If any of these apply to you, speak to your doctor before using saffron in larger amounts or as a supplement. This article is general information, not medical advice.
How to enjoy saffron safely
- Use it as a spice, in the amounts a recipe calls for.
- Buy whole threads from a seller you trust, with the origin and grade on the label. See where to buy authentic Iranian saffron in Malaysia.
- Learn the signs of fake saffron. Read how to tell real saffron from fake.
- Store it airtight, away from light and moisture, so it keeps its colour and aroma. See how to store saffron.
Frequently asked questions
Is it safe to eat saffron every day?
In normal cooking amounts, saffron is generally considered safe for most people.
Can pregnant women eat saffron?
Small amounts in food are generally not a concern, but large amounts and supplements are not advised. Speak to your doctor if you are unsure.
Is saffron a medicine?
No. Saffron is a food spice.
What does ISO 3632 Category I mean?
It is the highest category in the international saffron standard, based on laboratory measurements of colour, aroma and taste strength.
How do I know my saffron is good quality?
Look for deep red threads, a strong floral aroma, clear labelling and a seller you can contact. Our guide to real and fake saffron explains more.