What's really in bread: the '300 additives' myth, fact-checked

The figure that gets quoted in scary headlines is real, but it is being misread. EU additive law (Regulation 1333/2008) lists roughly 340 substances that are approved for use somewhere in the food supply, each with its own E-number. That is the total across every food category - soft drinks, sweets, sauces, the lot. It is not a list of things sitting in your loaf.

An E-number is also not a verdict. Approval means a substance has been assessed and deemed safe at the permitted levels - the opposite of dangerous. Some of the scariest-looking codes are completely harmless: E948 is oxygen, E300 is plain vitamin C. 'Has an E-number' and 'is bad for you' are simply not the same statement.

Here is the part the headlines skip. The biggest blocks of that EU list are not allowed in bread at all. Colours (E100-E180) are forbidden - bread may not be dyed, full stop. Preservatives (E200-E297) are forbidden in fresh, unpackaged bakery bread. The only exception is sliced, packaged bread on a supermarket shelf, and there they must be declared on the label - though most producers now skip them too.

That alone strikes out more than half the list. Most of the rest makes no sense in dough: nobody adds sweeteners, hydrochloric acid (E507), beeswax (E901) or gold (E175, itself a forbidden colour) to a bread. So the honest count of additives that could plausibly appear in bread is a small fraction of 340 - not 300.

You will hear that bread contains modified starches, gluten molecules, enzymes, mono- and diglycerides of fatty acids, heterocyclic aroma compounds. All true. But here is the twist: a loaf made of nothing but flour, water, salt and sourdough contains every one of those. They occur naturally in the grain, or they form on their own during mixing, fermentation and baking.

A grain of wheat is a small biochemistry factory; milling, kneading and the heat of the oven bring it to life. That is not contamination, it is how bread happens at all. 'Chemistry' is everything - water is a chemical. The word that matters is additive: something deliberately put in from outside. Don't let the two be blurred together.

Some real additions do show up, mostly to even out flour quality, improve volume or extend shelf life. Malt (from sprouted, dried grain) brings natural enzymes plus a sweet, malty flavour and better browning. Ascorbic acid - E300, i.e. vitamin C - is added to a lot of flour as a maturing agent; it stabilises the protein and is in no way alarming.

Beyond those: emulsifiers (such as lecithin from soy or egg) for volume and an even crumb; L-cysteine (E920), a natural amino acid that relaxes the gluten so dough develops faster; swelling flours and modified - meaning pre-gelatinised - starches that bind water and keep bread fresh longer. These are most common in rolls, where customers expect a particular fluffiness; a plain bread often needs none of them.

This is where the honest criticism lives. Many enzymes - amylases, xylanases, lipases - are used to standardise dough, make it machine-friendly and stretch freshness. Some are concentrated versions of enzymes already in flour; some are now lab-produced, and maltogenic amylases can keep a packaged loaf soft for weeks, which matters to factories shipping bread with a nine-week best-before date.

The catch: enzymes are treated as 'processing aids' on the theory that they have no technological effect in the finished product, so they need not be declared. Given the freshness effects above, that is fairly debated. There are also concerns about enzymes derived from genetically modified microorganisms ('hidden GMO'), and unsettled research linking some emulsifiers to metabolic effects. None of this is the same as the 300-additives scare - it is the specific, legitimate part worth caring about.

The additive stack concentrates where price and machinery rule. Industrial dough has to be machine-friendly - not too wet or sticky - and is often baked off from frozen, par-baked pieces in the back of the shop. At ten cents a roll, no trained baker is kneading fresh dough; the helpers in the dough do that job instead. That is a real trend: the number of craft bakery businesses keeps falling - down another 2.8% in 2025 to under 8,700, with small shops (under EUR 500k revenue) hit hardest. It is not all decline, though - a record 448 master bakers went independent in 2025 and sector revenue rose 1.3% to around EUR 18 billion, so the craft is proving resilient even as the smallest businesses close.

Baking mixes and frozen dough are part of the same story. They are not in themselves 'chemistry' - often just pre-blended grains, seeds and spices - but they do blur the line between a bakery's range and the factory's. The fix is not panic, it is knowing the difference and choosing accordingly.

Real sourdough bread is the clean answer to all of this: flour, water, salt and a living starter, given time. Long fermentation and the grain's own enzymes do the jobs additives are brought in to do - flavour, browning, a crumb that stays fresh - naturally, no E-numbers required. The 'sourdough' people fear is missing from a four-ingredient list is itself just flour and water brought to ferment.

And when you bake it yourself, the ingredient list is whatever you decide. That is the whole appeal: total control, no undeclared helpers. Tracking your starter and your bakes - which flour, how long, at what temperature - turns that control into a record you can actually read and repeat.

As an eater: don't condemn your baker on a headline. Ask what goes into each loaf and why - a good baker has nothing to hide and is usually glad to tell you. Prefer unpackaged bread from a baker who bakes their own, and read the label on packaged loaves. As a home baker: this is exactly the point. You hold the ingredient list. Four things and time, and you can taste the difference.