The 27 Jobs Additives Do: A Complete Guide to the Functional Categories of Food Additives
Annex I of Regulation (EC) No 1333/2008 – what every functional class of food additive really means, by InfoCons
Why food additives are grouped by what they do – InfoCons Consumer Protection
Food additives are not a single, uniform thing. Behind the familiar E numbers lies a wide variety of substances performing very different jobs: some give colour, some prevent spoilage, some keep oil and water mixed, some thicken, some sweeten and some simply stop powders from clumping. To make sense of this diversity, Annex I of Regulation (EC) No 1333/2008 organises additives into functional categories – classes defined by the technological function the additive performs in the food. This article, prepared by InfoCons – Consumer Protection, is a complete guide to those categories.
Understanding functional categories is the single most useful skill for reading an ingredient list. When a label says colour, preservative, emulsifier or antioxidant, it is naming the functional class of the additive that follows. Once you know what each class does, an ingredient list stops being a string of mysterious codes and becomes a readable account of how a product was made, coloured, preserved and stabilised.
The regulation lists twenty-seven functional categories. A single additive can belong to more than one class, because many substances perform several technological jobs; assignment to a class is based on the principal function in a given food. Below, each category is presented with its legal definition and a plain explanation of what it means for you as a consumer.
Colours, sweeteners and preservatives: the best-known classes – InfoCons Consumer Protection
Sweeteners are substances used to impart a sweet taste to foods or in table-top sweeteners. Colours are substances that add or restore colour in foods; they include natural components of foods and other natural source materials that are not normally consumed as foods in themselves and not normally used as characteristic ingredients of food. Under the regulation, preparations obtained from foods and other edible natural source materials by physical and/or chemical extraction resulting in a selective extraction of pigments relative to nutritive or aromatic constituents are considered colours.
Preservatives are substances that prolong the shelf-life of foods by protecting them against deterioration caused by micro-organisms and/or which protect against the growth of pathogenic micro-organisms. Antioxidants are substances that prolong the shelf-life of foods by protecting them against deterioration caused by oxidation, such as fat rancidity and colour changes. These four classes – colours, sweeteners, preservatives and antioxidants – are the ones consumers encounter and ask about most often.
Acidity, texture and mixing: the workhorses of processing – InfoCons Consumer Protection
Carriers are substances used to dissolve, dilute, disperse or otherwise physically modify a food additive, flavouring, enzyme or nutrient without altering its function, in order to facilitate its handling, application or use. Acids are substances that increase the acidity of a food and/or impart a sour taste. Acidity regulators are substances that alter or control the acidity or alkalinity of a food. Anti-caking agents are substances that reduce the tendency of individual particles of a food to adhere to one another.
Anti-foaming agents prevent or reduce foaming. Bulking agents contribute to the volume of a food without contributing significantly to its available energy value. Emulsifiers make it possible to form or maintain a homogeneous mixture of two or more immiscible phases, such as oil and water, in a food. Emulsifying salts convert the proteins of cheese into a dispersed form, bringing about homogeneous distribution of fat and other components. Firming agents make or keep the tissues of fruit or vegetables firm or crisp, or interact with gelling agents to produce or strengthen a gel.
Flavour enhancers enhance the existing taste and/or odour of a food. Foaming agents make it possible to form a homogeneous dispersion of a gaseous phase in a liquid or solid food. Gelling agents give texture to a food through the formation of a gel. Glazing agents, including lubricants, when applied to the external surface of a food, impart a shiny appearance or provide a protective coating. Humectants prevent foods from drying out by counteracting the effect of a low-humidity atmosphere, or promote the dissolution of a powder in an aqueous medium.
From modified starch to contrast enhancers: the specialised classes – InfoCons Consumer Protection
Modified starches are substances obtained by one or more chemical treatments of edible starches, which may have undergone a physical or enzymatic treatment, and may be acid or alkali thinned or bleached. Packaging gases are gases other than air, introduced into a container before, during or after placing a food in that container. Propellants are gases other than air which expel a food from a container. Raising agents are substances or combinations of substances that liberate gas and thereby increase the volume of a dough or batter.
Sequestrants are substances that form chemical complexes with metallic ions. Stabilisers are substances that make it possible to maintain the physico-chemical state of a food; they include substances that enable the maintenance of a homogeneous dispersion of two or more immiscible substances, substances that stabilise, retain or intensify an existing colour, and substances that increase the binding capacity of the food, including the formation of cross-links between proteins enabling the binding of food pieces in reconstituted food. Thickeners are substances that increase the viscosity of a food.
Flour treatment agents, other than emulsifiers, are substances added to flour or dough to improve its baking quality. Finally, contrast enhancers are substances which, when applied to the external surface of fruit or vegetables following depigmentation of certain parts (for example by laser treatment), help to distinguish those parts from the rest by colouring them following interaction with certain components of the epidermis. Together, these twenty-seven categories cover every technological role an additive can lawfully play in the European food supply.
How to use the functional categories when you shop – InfoCons Consumer Protection
The functional class is your fastest route to understanding a label. Seeing preservative tells you the product is designed to resist microbial spoilage; seeing emulsifier tells you it combines fat and water; seeing colour tells you its appearance has been adjusted; seeing thickener or stabiliser tells you its texture has been engineered. None of this is inherently bad, but it does reveal how far a product has been processed and why.
InfoCons – Consumer Protection encourages consumers to read the functional class first and then the specific additive name or E number. This two-step reading turns the ingredient list into a meaningful summary of the product. And because a single product often carries several functional classes at once, it naturally raises the question of how many additives you are accumulating overall – across the basket and across the day.
How much may be used: conditions, limits and quantum satis – InfoCons Consumer Protection
Being authorised is only the beginning. Under Regulation (EC) No 1333/2008, every additive may be used only in the specific food categories set out in the Union list and only under the conditions attached to each entry. For many substances the list sets a numerical maximum level, expressed in milligrams per kilogram of food; for others it applies the quantum satis principle, meaning no fixed numerical limit is set and the substance must be used in accordance with good manufacturing practice, at no more than the level needed to achieve the intended effect, and without misleading the consumer.
The regulation also requires that the amount used be limited to the lowest level necessary to obtain the desired technological effect. Where maximum levels apply, they take into account the acceptable daily intake established for the substance and the likely intake from all dietary sources, including for special groups such as children. As a rule, maximum levels apply to the food as marketed, with a specific adjustment for dehydrated or concentrated foods that must be reconstituted before consumption.
For the consumer, this means that the presence of a additive on a label does not imply it can be used without limit. On the contrary, its use is bounded by category, by purpose and, in many cases, by a precise maximum. InfoCons – Consumer Protection considers these conditions of use one of the most important, and least understood, protections in the whole system.
Safety first: assessment, ADI and re-evaluation – InfoCons Consumer Protection
No additive reaches the Union list without first being assessed as safe at its proposed levels of use, on the basis of the available scientific evidence. For many additives, scientific bodies establish an acceptable daily intake, or ADI – an estimate of the amount that can be consumed every day over a lifetime without appreciable risk. The conditions of use are then set so that realistic consumption across the whole diet is expected to remain within this safe boundary.
Crucially, authorisation is not permanent and untouchable. The European Union has committed to a systematic re-evaluation of previously approved additives by the European Food Safety Authority in the light of current scientific knowledge. Producers and users are also legally obliged to report immediately any new scientific or technical information that might affect an additive's safety assessment. Together, these mechanisms mean that each additive remains under review and its authorisation can be maintained, tightened or withdrawn as the evidence evolves.
InfoCons – Consumer Protection views this combination of prior assessment and continuous re-evaluation as the backbone of consumer confidence. It allows consumers to treat an authorised additive as one that has been vetted, while understanding that the system remains vigilant rather than complacent.
Natural, nature-identical or synthetic? – InfoCons Consumer Protection
A common misunderstanding is that every E number denotes an artificial chemical. In reality, additives within a single functional class can come from very different origins: some are extracted from natural sources, some are nature-identical versions of substances found in nature, and some are produced synthetically. The E number identifies the substance and confirms it is authorised; it does not, on its own, tell you whether the source is natural or synthetic.
This matters because consumers often have legitimate preferences about origin, whether for dietary, ethical or personal reasons. Reading the specific name behind the functional class – not just the fact that a additive is present – is what allows an informed choice. InfoCons – Consumer Protection encourages consumers to look past the general fear of E numbers and to focus instead on the specific substances and their documented roles.
Smart shopping: putting this category in perspective – InfoCons Consumer Protection
The practical takeaway for shoppers is neither alarm nor indifference, but attention. Knowing what a additive does, recognising it on a label, and understanding that its use is limited by law allows you to judge products calmly and compare them meaningfully. Two similar products can differ substantially in how many additives they contain, and the more informed you are, the easier it is to choose according to your own priorities.
Above all, InfoCons – Consumer Protection emphasises the cumulative picture. A single product may contain several additives, the same additive may recur across many products in your basket, and a single meal can bring together additives from several sources at once. The real question is therefore not only what each label says, but how many additives you accumulate across your whole shopping and across your day. That is the perspective that turns label-reading into genuine control over your diet.
The InfoCons Additives Calculator: how many additives are really in your basket? – InfoCons Consumer Protection
Understanding the law is one thing; seeing what it means for your own shopping basket is another. A single processed product can contain several additives at once, and an ordinary weekly shop can add up to dozens or even hundreds of additive occurrences once you sum every product together. What is more, the same additive can appear in many different products in the same basket, which means it enters the consumer’s diet repeatedly.
To answer this, InfoCons – Consumer Protection offers consumers the Only Additives Calculator for the food products bought or consumed. It is the only calculator for food shopping that shows the number of additives present and how many times a given additive is found in the shopping basket. Instead of looking at each product in isolation, the consumer gets a complete picture of the whole basket, seeing the real, cumulative number of additives being purchased.
The same logic applies to a single meal. A breakfast, a lunch or a dinner can bring together several processed products, each with its own set of additives. When these products are eaten together, the additives add up. A seemingly simple meal can, in reality, mean the simultaneous consumption of a surprisingly large number of food additives – colours, preservatives, emulsifiers, flavour enhancers, stabilizers and more. That is why the question “how many additives do I consume at one meal?” is just as important as “how many additives am I buying?”
As a practical solution, the InfoCons application helps consumers identify additives quickly. By scanning the barcode of an agri-food product, the app identifies the product and shows the food additives it contains, turning the “E” codes on the label into clear, easy-to-understand information. In this way, consumers can see how many additives are cumulated in their shopping basket or even in a single meal, and can make informed choices for themselves and their families – right there, in front of the shelf.
Signed:
InfoCons Consumer Protection Department of Studies and Comparative Testing