E150a (caramel I, simple caramel)

E150a, or plain caramel, is a brown food colour produced by heating food carbohydrates without the ammonium or sulphite reagents used for other classes of caramel colours. It is used for colour, ranging from light amber to dark brown. On labels, E150a may appear in drinks, sauces, vinegars, desserts, confectionery, bouillon products and some alcoholic beverages.

The main misunderstanding around E150a comes from the word caramel. In home cooking, caramel suggests sugar and sweetness. In food technology, caramel colour is not the same as adding a spoon of sugar to a product. It is usually added in small amounts to standardise colour, not as the main sweetening ingredient. E150a therefore needs to be assessed separately from sugars, syrups and carbohydrate content in the formula.

How E150a differs from other caramels

Caramel colours are divided into several classes: E150a, E150b, E150c and E150d. Plain caramel E150a is class I. It is produced without ammonium and sulphite compounds, which distinguishes it from sulphite caramel, ammonia caramel and sulphite ammonia caramel. This matters because different classes have different technological properties, uses and accompanying substances.

To a consumer they may all look like caramel colour, but the distinction is meaningful. Some products need a mild amber tone, while others need a stable dark colour in a drink or sauce. E150a is often seen as the simplest form of caramel colour, but simple does not mean that the product containing it is automatically natural, healthy or low in carbohydrate.

Why it is added

E150a helps make the colour of a product more even and predictable. A drink, sauce or vinegar may vary in shade from batch to batch because of raw materials and processing conditions. The colourant smooths out those differences so the buyer sees the expected colour. Sometimes this is not deception, but standardisation: people expect a familiar product to look the same every time.

Colour can also influence flavour perception. A dark sauce may seem richer, a drink stronger, a dessert more roasted or caramel-like. E150a can therefore reinforce flavour expectations even when it is not a full flavouring ingredient. This is especially noticeable in products where aroma and colour create an impression of depth while the formula itself remains simple or inexpensive.

Safety and EFSA assessment

EFSA re-evaluated caramel colours E150a, E150b, E150c and E150d as a group while considering the differences between classes. For consumers, the useful point is that caramel colour is not the same as homemade caramel and should not be judged by the name alone. The technological class, specification, possible processing by-products and actual level of intake are relevant.

With ordinary intake of products containing small amounts of E150a, this colour is rarely the main dietary risk. Much more often the issue is the product itself: a sugary drink, sweet sauce, dessert, syrup or ultra-processed mix. A savoury product with a small amount of E150a is different from a product that also contains a lot of sugar, starch, syrups and flavourings.

Relevance for keto and LCHF

E150a is made from carbohydrate raw materials, but in the finished food it is usually a colourant rather than a meaningful carbohydrate ingredient. The code E150a therefore does not automatically make a product unsuitable for low-carbohydrate eating. The carbohydrate table and full ingredient list matter: sugar, glucose syrup, fructose syrup, maltodextrin, starch, flour and sweet concentrates are usually more important than the colourant itself.

This question often comes up with drinks and sauces. Whisky, rum, vinegar, soy sauce or a prepared meat sauce may have a brown shade because of E150a, but their carbohydrate content depends on the recipe. Some products add almost no sugar per serving, while others are essentially sweet sauces. A decision cannot be made from one E-code alone; grams of carbohydrate per serving and frequency of use need to be checked.

How to read the ingredient list

If E150a appears near the end of the list and the product is used in small amounts, it is usually not the central problem. If sugar, syrups, starch, flour, molasses, fruit concentrates or sweet flavoured bases appear alongside it, the product should be assessed as carbohydrate-rich or dessert-like, not simply as coloured. For LCHF this is more practical than arguing whether caramel colour is sugar.

It is also important not to confuse colour with nutrition. A brown shade may create an impression of roasted, aged, rich or natural food, but it does not add protein, minerals or satiety. If the diet is built around whole foods, E150a remains an occasional technological detail. If brown drinks, sweet sauces and desserts appear every day, the main issue is the habit of processed flavours.