Guide
Allergens in butter
Butter is milk. The word milk often does not appear in the name, so the ingredients list has to emphasise milk anyway. Ghee and concentrated butter are also milk. Margarine is not automatically the same label.
Reviewed against official guidance.SourcesNot legal advice.
The usual pattern
Butter is churned cream, sometimes with salt. Lactic cultures in cultured butter do not remove the milk allergen. A dairy-free spread is a different product.
What to check in butter
| What you see | What it means on a PPDS label |
|---|---|
| Butter, concentrated butter | Milk |
| Ghee | Milk — lactose may be lower, the protein remains relevant |
| Buttermilk left from the churn | Milk |
| Dairy-free spreads | Often soya or other allergens — not milk, if truly dairy-free |
How to write it on the label
PPDS food needs the name of the food and a full ingredients list, with the 14 allergens emphasised every time they appear. The Food Standards Agency’s PPDS guidance is the practical reference. A typical ingredients fragment looks like this — yours must follow the specification of the product you actually use.
Example fragment
Butter (milk).
Where it shows up
Cakes, pastry, shortbread, buttercream, sauces and garlic bread.
Writing vegetable oil when you used butter
If the recipe card was updated to oil but the baker still uses butter, the label is missing milk. Match the label to the batch.
Cocoa butter, shea butter and nut butters are not milk. The name butter is not the test — the ingredient is.
Specification first
Brands differ. Treat this page as the usual pattern, then match the label to the tub, bag or recipe in front of you.
Questions
Do I write butter or milk?
Is unsalted butter still milk?
Official sources
Everything on this page traces back to these. Where they and we disagree, they are right — tell us and we'll fix it.
- Introduction to allergen labelling for PPDS foodFood Standards Agency / GOV.UK
- Labelling guidance for prepacked for direct sale (PPDS) food productsFood Standards Agency / GOV.UK
- Food allergen labelling and information requirements technical guidanceFood Standards Agency / GOV.UK