Is Stockwell Mayonnaise ultra-processed?

450ml Mayonnaises Sold in the United Kingdom

Yes, it's ultra-processed

1 Unprocessed
2 Kitchen staple
3 Processed
4 Ultra-processed

Signs of ultra-processing in its ingredients:

Glucose
Glucose syrup
Modified starch

11 ingredients
No additives
Nutri-Score C

Less processed mayonnaises

Less processed isn't automatically healthier, so compare the labels for what matters to you, such as sugar or salt.

Ingredients

Ultra-processing Processing signs are highlighted

Water, Rapeseed Oil, Modified Maize Starch (ultra-processing marker), Glucose Syrup (ultra-processing marker), Spirit Vinegar, Sugar (processing marker), Pasteurised Egg Yolk, Salt (processing marker), Acidity Regulator, Stabilisers, Preservative (processing marker)

As written on the pack

Water, Rapeseed Oil, Modified Maize Starch, Glucose Syrup, Spirit Vinegar, Sugar, Pasteurised Egg Yolk, Salt, Acidity Regulator, Stabilisers, Preservative

What makes it ultra-processed

Cosmetic additives

Added to change how the food looks, feels or tastes, not to keep it safe. A hallmark of ultra-processed food.

Modified starch Modified starch is starch altered physically, with enzymes or chemically, so that it thickens, gels or survives freezing and heating better than ordinary starch.

Substances rarely used in home kitchens

Refined or extracted in factories, such as syrups made from starch or isolated proteins. The other hallmark of ultra-processed food.

Glucose Glucose, usually listed as glucose syrup, is cheap, keeps products moist and stops sugar from crystallising.
Glucose syrup Glucose syrup is cheap, keeps products moist and stops sugar from crystallising.

4 ingredients that would only make it processed

Kitchen staples like sugar, salt and oil. On their own they make a food processed, not ultra-processed.

Preservative Preservatives slow spoilage by microbes.
Salt Salt, added for taste and preservation.
Starch Starch extracted from cereals or potatoes, used to thicken.
Sugar Sugar refined from sugar cane or beet.

How the NOVA groups work

Among 239 mayonnaises

From least to most processed, this one ranks 153rd. 72% of the mayonnaises here are ultra-processed.

Ranked by NOVA group, then by the number of ultra-processing signs, additives and ingredients. Our ordering, not part of NOVA.

All 239 mayonnaises, least processed first

About this information

Data from this product on Open Food Facts (barcode 5057753908188, last edited 27 March 2026), available under the Open Database License. If something is wrong or the recipe has changed, you can correct it there.
Photo: Open Food Facts contributors, CC BY-SA 3.0.
The NOVA group is an automated estimate from crowdsourced data: a missing or mistyped ingredient can change it.
NOVA measures processing, not nutrition. For nutrition, Open Food Facts gives this product a Nutri-Score of C (from A, best, to E).
General information, not medical or dietary advice. Check the pack if you have an allergy.