Zurich Lab Finds Germs in Coffee Machines, Warns Small Businesses

A recent report from the Zurich Cantonal Laboratory has raised concerns about hygiene in establishments serving coffee with milk, revealing that fully automatic machines are particularly susceptible to bacterial growth. While the milk itself is generally safe, the complex machinery requires rigorous cleaning, a standard that not all businesses consistently meet.

The laboratory's analysis of 15 milk drink samples from various food service outlets, including restaurants and gas stations, uncovered deficiencies in nearly a quarter of them. Specifically, four samples exceeded the guideline values for Enterobacteriaceae, bacteria that can cause diarrhea and indicate contamination within the coffee machine itself. This finding, though based on a small sample size, points to a potential public health issue that warrants attention.

Small businesses, such as food trucks, face unique challenges in maintaining adequate hygiene due to limited space and demanding operating conditions. The report highlights that even after follow-up inspections, two mobile food businesses failed to meet the required standards, necessitating further corrective actions. This underscores the difficulty in consistently upholding hygiene protocols in less-than-ideal environments.

While the focus of such inspections is often on contamination, the Cantonal Laboratory also verifies product claims. This dual approach ensures both consumer safety and accurate product information. The findings serve as a crucial reminder for businesses to prioritize cleaning protocols, especially concerning milk systems in coffee machines, to safeguard public health and maintain consumer trust.