How to tell real saffron from fake
Saffron is the most adulterated spice in the world. It is also one of the easiest to check, if you know what the thread is supposed to do. Five tests you can run at home, and the one number on a label that actually means something.
The one number worth asking for
Colouring strength. It measures crocin — the compound that carries saffron’s colour — and it is read on a spectrophotometer, not decided by a marketing team. Anything below 190 is not ISO 3632 Grade 1. Baby Saffron measures 200 or above, and the figure for your specific batch is on the report for that batch, which we will send you if you email us its number from the tin.
“Premium” and “pure” are not defined terms and no test sits behind either one. A grade and a number are.
Five tests you can do at home
None of these is conclusive on its own — someone adulterating saffron deliberately can make a product that passes any one of them. Run all five and that stops being practical.
1. The water test
10–15 minutes
Put a few threads in room-temperature water — not hot, which forces colour out of anything. Watch for a full 10 minutes, and up to 15 if the colour is slow to move.
Real: nothing much happens for the first 30 seconds or so, then a thin gold thread of colour rises and deepens to amber by around the 10-minute mark — and the threads themselves stay red. Fake: the water turns red within about 5 seconds and the threads go visibly pale in the same time.
2. The thread test
under a minute
Look closely at a single strand, in daylight or under a phone torch. Saffron is a stigma, so it has a shape: narrow at the base, flaring to a trumpet at the tip, with a finely jagged edge you can see if you look for it.
Real: trumpet-shaped, deep red, and noticeably uneven in length from thread to thread. Fake: straight cut sticks of near-identical length and thickness, with flat or squared-off ends rather than a flared tip.
3. The smell test
a few seconds
Warm a thread between your fingers for a few seconds and smell it. Saffron's aroma comes mostly from safranal, and once you have smelled the real thing a few times it is hard to confuse.
Real: honey and dried hay, with a dry, slightly medicinal bitterness behind it. Fake: a strong candy or synthetic-perfume smell, which means fragrance has been added.
4. The rub test
a few seconds
Rub a thread between damp fingertips.
Real: a pale yellow-orange stain that appears gradually, after a few seconds of rubbing. Fake: a strong red or bright orange smear the instant you start — that is surface dye, not crocin.
5. The taste test
a few seconds
Put one thread on your tongue. This is the one most buyers read backwards.
Real: it smells sweet and tastes clearly bitter, with no sugary sweetness on the tongue at all. Fake: if the thread itself tastes sweet, something has been added — sugar and honey are both common carriers for dye.
What ISO 3632 actually measures
ISO 3632 is the international standard for saffron, and it grades on three attributes, each read on a UV-visible spectrophotometer at a fixed wavelength:
- Crocin — colouring strength. How deep the colour is and how fast it releases.
- Picrocrocin — flavour. Saffron’s characteristic bitterness.
- Safranal — aroma. The honey-and-hay smell.
Grade 1 (Category I) requires the highest scores on all three. Grade 2 and Grade 3 fall progressively below. A grade quoted without a colouring strength number is worth very little — the number is what the instrument actually produced.
Saffron sold in India must also meet the standards set by the Food Safety and Standards Authority of India (FSSAI), which is what makes added colour a legal matter and not merely a quality one.
What saffron is adulterated with
The usual substitutions are safflower petals, dyed corn silk, marigold florets and shredded coloured plant fibre — sold on their own or mixed into real saffron to add weight. Powder is easier to adulterate than threads, because grinding hides the shape of whatever went in. If you are unsure of a source, buy threads: the shape of a stigma is difficult to fake and easy to check.
Price is the other tell. A gram of saffron is the hand-picked, hand-separated stigma of about 150 crocus flowers, each yielding exactly three, harvested in a window of roughly two weeks a year. There is no machine-harvested saffron. A price well below the market is not a bargain — it is the arithmetic telling you something has been added.
How Baby Saffron tests its own
Every batch Baby Saffron packs is tested for ISO 3632 Grade 1 in the company’s own saffron laboratory at Neemrana. That laboratory is ours and not an accredited third party’s, which matters on a page about who to believe: an in-house result is worth exactly as much as the willingness to show it. So it is shown — a full certificate of analysis is published, with all seven measurements and the test method named against each. Every tin carries its batch number, and emailing that number to orders@babysaffron.com gets you the certificate of analysis for your batch — so the number can be made to refer to the saffron in your hand rather than to a brand average.
A full certificate of analysis for one batch — all seven ISO 3632 measurements, with the test method against each — is published here, alongside the facility’s ISO 9001 and GMP/HACCP certificates.
The saffron is graded by hand, packed against moisture at a humidity-controlled facility in Neemrana, and sealed tamper-evident. Baby Saffron has been a family business in saffron since 1840 and has sold under this name since 1965.
Baby Saffron is packed by USMS Saffron Co. Inc. under FSSAI Central Licence 12217010000080, which covers the Khari Baoli head office in Delhi and the Neemrana manufacturing premises. Anyone can look the number up on the government’s own register at foscos.fssai.gov.in and see the licensee, the premises and the expiry date — a claim you can verify is worth more than one you have to believe.
Common questions
How can I tell if saffron is real?+
Drop a few threads into room-temperature water and watch for 10 to 15 minutes. Real saffron gives up its colour gradually — almost nothing for the first 30 seconds, then gold deepening to amber by about 10 minutes — and the threads themselves stay red throughout. Dyed or fake saffron turns the water red within roughly 5 seconds and the threads go pale in the same time. Real threads are trumpet-shaped with a finely jagged tip and uneven in length, not straight sticks of matching size, and they smell of honey and dried hay with a dry bitterness behind it.
What does ISO 3632 Grade 1 mean?+
ISO 3632 is the international standard that grades saffron on three measurable attributes: colouring strength (crocin), flavour (picrocrocin) and aroma (safranal), each read on a UV-visible spectrophotometer at fixed wavelengths. Grade 1, or Category I, requires the highest scores on all three, including a colouring strength of 200 or above. Grade 2 and Grade 3 fall progressively below those thresholds. Baby Saffron releases a lot only after it clears Grade 1 limits.
What is colouring strength, and what number should I look for?+
Colouring strength measures how much crocin — the compound that carries saffron's colour — is in the thread, read as absorbance at 440 nm, and it is the single most useful number on a saffron label. A colouring strength below 190 is not ISO 3632 Grade 1 at any price, and Category I starts at 200. Baby Saffron releases above that minimum rather than at it — the batch published in full at babysaffron.com/certifications measured 230.4 — which is why a smaller pinch colours the same amount of milk.
Is a label that says 'premium' or 'pure' enough?+
No. Premium and pure are not defined terms and no test sits behind either of them. The question worth asking a seller is the ISO 3632 grade and the colouring strength number, because those are measured on an instrument rather than chosen by a marketing team.
What is saffron usually adulterated with?+
The common substitutions are safflower petals, dyed corn silk, marigold florets and shredded, coloured plant fibre, sold loose or mixed into real saffron to increase weight. Powdered saffron is easier to adulterate than threads, because grinding hides the shape of what went in — which is the main practical argument for buying threads if you are unsure of a source.
Why is real saffron so expensive?+
Because there is no shortcut. A single gram of saffron is the hand-picked, hand-separated stigma of roughly 150 crocus flowers. Each flower yields exactly three stigmas, and the harvest window is about two weeks a year. There is no machine-harvested saffron, so genuine high-grade kesar costs what it costs — and a price well below the market is the clearest signal that something has been added.
Is Baby Saffron's saffron lab-tested?+
Yes, in the company's own saffron laboratory at Neemrana rather than an accredited third party's. Because the laboratory is ours, a complete certificate of analysis is published at babysaffron.com/certifications — all seven ISO 3632 measurements with the test method named against each — so the testing can be checked instead of taken on trust. Every tin carries its batch number — email that number to orders@babysaffron.com and we will send you the certificate of analysis for your batch. The Neemrana facility itself is certified to ISO 9001:2015 and to GMP/HACCP by Intertek.
Does Baby Saffron have an FSSAI licence?+
Yes. Baby Saffron is packed by USMS Saffron Co. Inc. under FSSAI Central Licence 12217010000080, covering the Khari Baoli head office in Delhi and the manufacturing premises at Neemrana, Rajasthan. The number can be checked by anyone on the government's own register at foscos.fssai.gov.in.