Food dye or saffron: the additive that warns of harm to children

The paella colouring warns on its label that it harms children

A budget paella colouring mix and a pinch of saffron at a gold price. The choice looks like a simple shopping decision, but it ends up in the small print of a jar: the most common food colouring contains tartrazine (E-102), and the very same label warns that it is harmful to children. This is not a rumour from some online tavern. It is printed on the packaging.

The starting point was a different one: if saffron costs almost as much as gold, why not reach for the nearly free colouring to give the paella its yellow glow? The answer that emerged in the conversation had little to do with sarracena and a lot to do with chemistry. E-102 does not just add colour: according to the information discussed, it has been linked to attention deficit in children. And it is not the only additive that came up.

What is tartrazine and why it appears in the colouring jar

Tartrazine is the artificial yellow that gives that impossible shade to rice dishes, snacks and soft drinks. It appears in the own-brand paella mix with 1% saffron and a high percentage of colouring. The composition repeats across manufacturers: the same supplier serves several brands, so switching shelves does not change the problem.

The warning is not the invention of a conspiracy forum. The regulations themselves require it to be stated on the labelling of products containing it, and anyone buying it can check by turning the jar around. The discussion quickly turned to E-120, cochineal, a red colouring of animal origin found in yoghurts, sweets and children's dairy products. Some people discovered it with the jar in hand and stopped buying them that very afternoon.

Natural alternatives: turmeric, annatto, ñora pepper and paprika

Turmeric won most of the consensus. It is E-100, with no known toxicity, and a three-euro bag provides colour for a year. The dose matters: a pinch on the tip of a knife tints the rice without turning it into a curry dish. It is recommended to pair it with a pinch of black pepper, because it improves absorption and prevents the compound from being lost through urine.

Annatto, or Bixa orellana, is the Latin American option, easy to find in Latin American food shops, in paste, powder or liquid form. Ñora peppers and choricero pepper pulp give a more sofrito-like yellow-red hue. And a teaspoon of pimentón de la Vera in the sofrito solves colour and flavour in one go. None of these routes requires travelling to the other side of the world: turmeric is sold in any neighbourhood supermarket.

The stock and sofrito trick: colour without additives

The most frugal route is not a spice, it is a habit. Keeping vegetable scraps in the fridge and simmering them into a concentrated stock gives a yellower, tastier base than any jar. A sofrito of tomato, garlic, onion and sweet paprika does the rest. Colour stops being a chemistry problem and becomes a by-product of cooking well.

Saffron, meanwhile, has defenders with an argument. With a few lightly toasted threads you get more aroma, and one euro is enough for a paella serving six to eight people. It is not a colouring: it is a spice that colours along the way. Those who cannot or will not pay for it have substitutes; those who use it should know they are paying for aroma, not pigment.

The hidden cost of saving on the colour of the rice

The maths does not end at the till. A jar of colouring costs cents; a bag of turmeric, three euros a year. The difference is ridiculous compared to the price of a jar of saffron, but also compared to what you save on processed products that contain tartrazine and cochineal without anyone looking at the label. The real saving lies in reading, not in choosing the cheapest jar.

The awkward question remains: if the packaging warns that the additive is harmful to children, why is it still the best-selling one for cooking for them? The answer is not the price. It is that nobody turns the jar around.