The parents of a 12-year-old girl who died from anaphylaxis in 2023 are calling for a dedicated allergy rating for food businesses in England.

Mia Shay St Hilaire, from London, suffered a severe allergic reaction after drinking a milkshake that contained traces of nuts. The drink was made in an unwashed blender at the Pop Inn Café.

Her father, Adrian St Hilaire, and her mother, Chanel Spence, have now launched renewed calls for England to introduce a formal allergy rating system for food businesses — a mechanism that would give consumers a visible, standardized indicator of how seriously an operator manages allergen risk.

What happened at the Pop Inn Café?

The case turns on a breakdown in basic kitchen process. The milkshake that killed Mia was prepared in a blender that had not been washed between uses, allowing traces of nuts to pass into a drink ordered by a customer with a known allergy.

Cross-contact of this kind is precisely the failure mode that allergen controls exist to prevent: separation of equipment, cleaning protocols, and staff verification at the point of order. A rating scheme, as envisioned by Mia's parents, would make the presence — or absence — of those controls visible to the public before a customer orders.

Why are families pushing for a rating rather than existing rules?

English food businesses already operate under food safety and allergen information obligations, but there is no published rating that tells consumers how well an individual café, restaurant or takeaway manages allergens specifically.

Mia's parents argue that without a visible, dedicated allergy rating, families managing severe allergies have no reliable way to distinguish an operator with rigorous allergen protocols from one with none. Their campaign follows the death of their daughter in 2023 and has renewed pressure on policymakers in England to act.

What would a rating mean for operators?

For food businesses, a dedicated allergy rating would move allergen management from a back-of-house compliance function to a front-of-house commercial variable — one customers could see and act on.

The operational stakes are concrete. A rating system would likely hinge on demonstrable practices: equipment cleaning between orders, staff training, and clear communication of allergen content at the point of sale. The Pop Inn Café case shows the cost of failure in those practices: a single unwashed blender produced a fatal, trace-level cross-contact.

For now, the proposal remains a call from a bereaved family rather than a legislated requirement. Adrian St Hilaire and Chanel Spence's campaign for an allergy rating in England continues to gain attention following their daughter's death, and any government response would determine whether allergen management becomes a rated, public-facing standard for the country's food businesses.