Folic Acid in UK Flour: Which Flours Are Affected and Which Are Exempt

From 13 December 2026, almost every bag of white and brown wheat flour sold in the UK must contain added folic acid. Many mills have already switched, so you may have spotted it in the ingredients of your usual flour, including organic brands. If you simply want to understand what has changed, or you prefer to choose flour without these additions, this guide explains which flours are covered, which are exempt and how to tell them apart in seconds.

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What Is Changing | Which Flours Are Covered | Which Flours Are Exempt | What About Oats? | How to Read the Label | Milling Your Own Flour | Flours Without Added Folic Acid | FAQs

What Is Changing?

UK flour has been fortified by law since the 1940s and 1950s: mills already add calcium carbonate, iron, niacin and thiamin to most non-wholemeal wheat flour. An amendment to the Bread and Flour Regulations adds folic acid to that list, at 0.25mg per 100g of flour, with a final compliance date of 13 December 2026.

The government's stated aim is to reduce neural tube defects such as spina bifida, and it estimates the change will prevent around 200 cases of serious brain and spinal conditions each year. The Food Standards Agency is clear that fortification supports, but does not replace, the NHS advice for anyone planning a pregnancy to take a folic acid supplement.

Because the deadline is a date for full compliance, flour on shelves is changing gradually. Bags packed before the switch may still be unfortified, so the ingredients list on the bag in your hand is always the final word.

Wondering whether fortified flour is right for you? Our article Folic Acid in Flour: Who Should Take Care and Why Some Choose Unfortified Flour explains the official view, the open questions and who may want to take special care.

Which Flours Must Contain Folic Acid?

The rule applies to non-wholemeal flour made from common wheat (Triticum aestivum). In practice that means:

• White flour: plain, self-raising and strong white bread flour
• Brown and light brown flour, which has some of the bran removed
• Malthouse, granary-style and seeded bread flours, because their base is white or brown wheat flour
• Pasta, pizza and 00 flours made from common wheat and sold in the UK, including imported ones
• Organic white and brown flour: organic standards allow fortification where the law requires it

You will already see folic acid listed on flours such as Doves Farm Organic Plain White Flour, Organic Strong White Bread Flour and Organic Malthouse Bread Flour. A useful reminder: brown is not the same as wholemeal. A brown flour such as Plain Brown Flour is still non-wholemeal, so it falls under the rules.

Which Flours Are Exempt?

Several groups of flour do not have to carry folic acid or any of the other added nutrients:

• Wholemeal wheat flour, made from 100% of the wheat grain
• Flour from other wheat species: spelt, einkorn, emmer, durum and khorasan
• Non-wheat flours: rye, barley, oat, buckwheat, rice, maize, chickpea, teff and nut flours
• Gluten-free flour blends, which are not made from wheat
• Flour from small mills producing no more than 500 tonnes a year

That leaves plenty of choice for bread, cakes and pasta. If you want something close to white flour, white spelt, white rye and durum semola are the easiest swaps, while wholemeal, einkorn and emmer bring more flavour and fibre.

What About Oats?

Oats are not wheat, so oats, oat flour and oat bran are not covered by the rules. Plain Organic Porridge Oats, Jumbo Oats and Oat Groats have nothing added. Two things are still worth checking on the label:

• Oaty flour blends, such as a strong white flour with added oats, contain folic acid in their wheat flour part
• Breakfast cereals and granolas are sometimes fortified voluntarily by the manufacturer, so read the ingredients

How to Read the Label

Fortified flour must show the added nutrients in its ingredients list. It usually looks like this:

Flour (wheat flour, calcium carbonate, iron, niacin, thiamin, folic acid)

An unfortified flour simply names the grain, for example wholemeal wheat flour, spelt wheat, rye or durum wheat semolina. Three quick checks:

• Look for the word wholemeal in the ingredients, not just on the front. Words like brown, malted or wholegrain blend on the front of a pack do not guarantee a wholemeal flour
• Check the grain: spelt, einkorn, emmer, durum, rye and other non-wheat grains are exempt
• Check blends and mixes: a bread mix or pancake mix that contains white wheat flour will contain the added nutrients too

Milling Your Own Flour From Wheat Grain

The regulations apply to flour that is sold, not to flour you make at home. That makes whole grains an interesting option for keen bakers. Organic Wheat Grain 500g can be ground in a tabletop grain mill to make fresh wholemeal flour as and when you need it, with nothing added. Many home millers sift part of the bran out through a fine sieve for a lighter flour, and use the bran for porridge or muffins.

A few tips: mill only what you need for a bake, because freshly ground flour keeps its flavour best when used soon; store the grain in a cool, dry, airtight container; and start with a recipe written for wholemeal flour, as home-milled flour absorbs more water than white.

Flours Without Added Folic Acid

Wholemeal wheat flour and wheat grain, for everyday bread, rolls and pizza:

• Organic Wheat Grain 500g
• Organic 100% Strong Wholemeal Bread Flour 1.5kg
• Marriage's Golden Wholegrain Bread Flour
• Marriage's Very Strong Canadian Wholemeal Bread Flour
• Marriage's Strong Stoneground Wholemeal Bread Flour
• Marriage's Organic Strong Stoneground Wholemeal Bread Flour
• Wessex Mill Wholemeal Bread Flour
• Organic Fine Plain Stoneground Wholemeal Flour 1kg
• Organic 100% Wholemeal Self Raising Stoneground Flour 1kg

Spelt, ancient grains, rye and durum, including the closest swaps for white flour:

• Organic White Spelt Flour 1kg
• Wessex Mill White Spelt Flour
• Organic Spelt Wholemeal Flour 1kg
• Organic Wholemeal Spelt Flour 450g
• Organic Einkorn Wholemeal Flour 1kg
• Organic Emmer Wholemeal Stoneground Flour 1kg
• Organic White Rye Flour 1kg
• Organic Rye Wholemeal Flour 1kg
• Wessex Mill Wholemeal Rye Flour
• Organic Rye Flour 500g
• Organic Durum Wheat Semolina
• Caputo Durum Wheat Semola Rimacinata

Gluten-free bread flours:

• Freee White Bread Gluten Free Flour 1kg
• Brown Bread Gluten Free Flour 1kg

Golden wholegrain flour is a good halfway house: it is a 100% wholegrain flour with a milder, sweeter taste and a lighter colour than traditional wholemeal, so loaves feel closer to white bread.

FAQs

Is organic flour exempt from folic acid?
No. Organic white and brown wheat flour must be fortified like any other. Organic wholemeal flour, and organic spelt, rye and other exempt grains, have nothing added.

Does folic acid change how flour bakes?
No. It is added in a very small amount and does not change dough behaviour, flavour or the finished bake.

Is spelt flour fortified?
No. Spelt is a different wheat species from common wheat, so both white and wholemeal spelt flour are exempt.

Is wholemeal flour ever fortified?
Mills are not required to fortify wholemeal flour. If you see the added nutrients on a wholemeal-looking product, it may contain some non-wholemeal flour, so check the ingredients.

When do the new rules start?
The final deadline is 13 December 2026, but many mills began adding folic acid earlier, so the change is already on many shelves.