When Was Costa Coffee Founded and Why Does Allergen Training Matter?
A 13-year-old girl with a severe dairy allergy died after drinking a hot chocolate from a Costa coffee shop in the UK. Her mother had told the barista that only soy milk should be used, but cow's milk was added instead. The girl took one sip, recognized the mistake, and was rushed to a pharmacy and then a hospital, where she was pronounced dead at 1 p.m.
The case has renewed scrutiny of allergen management in food service. The UK introduced rules in 2021 requiring food businesses to train staff on allergens. Allergy UK statistics cited in coverage estimate around 10 deaths a year from allergic reactions in England and Wales, and 2 to 3 percent of children are allergic to cow's milk, showing why milk to coffee ratio questions carry real risk.
A hot chocolate that should have been made with soy milk instead contained cow's milk added by the barista, causing a 13-year-old girl with a severe dairy allergy to suffer a fatal allergic reaction after a single sip, and she ultimately died despite emergency treatment. This tragedy, which occurred at a Costa coffee shop in the UK, has once again thrust the issue of allergen management in the food service industry into the spotlight. The UK introduced relevant regulations as early as 2021 requiring food businesses to provide allergen training for their staff, yet accidents still happen. This article will recount the events and explore the risks and prevention of allergen cross-contamination in coffee beverage preparation.
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According to the Daily Mail, a tragic incident recently occurred at a local Costa coffee shop in the UK: a 13-year-old girl died after drinking a hot chocolate served by the shop.
On the day of the incident, the girl's mother had originally planned to take her to a dental clinic. On the way, they passed a Costa coffee shop, and the mother bought her a hot chocolate. During the ordering process, the mother explicitly informed the barista that her daughter had a severe dairy allergy and repeatedly emphasized that only soy milk should be used as a substitute in the drink.
However, while waiting at the dental clinic, the girl took just one sip and immediately realized that the drink contained not the soy milk they had requested, but cow's milk, which would trigger her allergic reaction. She immediately told her mother, and the two rushed to a nearby pharmacy for help.
After learning about the girl's condition, the pharmacy staff provided her with an EpiPen—an emergency medication administered by injection to counter life-threatening allergic reactions. An ambulance and paramedics also quickly arrived at the scene and rushed the girl to the hospital. But it was already too late. After multiple resuscitation attempts, the girl was pronounced dead at 1 p.m. that day.
It is understood that severe allergic reactions can cause symptoms such as difficulty breathing and may even be life-threatening. According to statistics from Allergy UK, approximately 10 people die each year from allergic reactions in England and Wales, with 2% to 3% of children allergic to cow's milk, making it the most common food allergen among children.
The girl who tragically lost her life was a patient with a severe dairy intolerance. Her family revealed that she had been allergic to foods such as dairy products, eggs, fish, and wheat since childhood, so in daily life the family would deliberately avoid these ingredients that could trigger her allergies.
What was completely unexpected was that even after instructing the barista not to use dairy products in the drink, the accident still happened. Just one sip of cow's milk caused the girl to lose her precious life due to a severe allergic reaction in an extremely short period of time.

In fact, to protect allergy sufferers, the UK government introduced strict legal regulations as early as 2021, requiring food-handling businesses to provide allergen-related training for their employees, focusing on risk awareness, cross-contamination prevention, labeling accuracy, and how to respond to customer inquiries about allergens. The UK Food Standards Agency has stated that food businesses that fail to comply with these regulations will face financial penalties.
Currently, the East London Coroner's Court will begin an inquest into the girl's cause of death next Monday. The hearing is expected to last a week and will delve into the various circumstances surrounding this death through testimony from 11 witnesses and experts.
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