Keresztszennyezdés

Keresztszennyezdés is the Hungarian term for cross-contamination. It refers to the unintentional transfer of microorganisms or allergens from one substance or surface to another. This can occur in various settings, most notably in kitchens and food preparation areas, but also in healthcare environments, laboratories, and even in manufacturing processes.

In food safety, keresztszennyezdés is a significant concern. It can happen when raw food, such as uncooked meat or poultry, comes into contact with cooked food or ready-to-eat items. This transfer can spread harmful bacteria like Salmonella or E. coli. Similarly, surfaces, utensils, or hands that have touched raw food can contaminate other food items if not properly cleaned and sanitized. Allergens can also be a source of keresztszennyezdés, where trace amounts of an allergen can be transferred to a food product that does not contain that allergen, posing a risk to individuals with severe allergies.

Preventing keresztszennyezdés involves implementing good hygiene practices. This includes thorough handwashing, using separate cutting boards and utensils for raw and cooked foods, and regular cleaning and disinfection of all food contact surfaces. In healthcare, it is crucial to prevent the spread of infections from one patient to another or from equipment to patients through meticulous sterilization and disinfection protocols. Laboratories also employ strict procedures to avoid the contamination of samples or cultures.