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Boards with numerous deep cuts and grooves tend to trap food particles and bacteria, making sanitation difficult. Conversely, well-maintained, newer boards with fewer grooves, especially when dried thoroughly and stored properly, showed significantly lower microbial counts.
The Science of Biofilms: An Invisible Threat
Microbiologist Diana explained the concept of biofilms—a complex community of bacteria embedded within a slimy, protective layer. These biofilms can adhere stubbornly to surfaces, making them resistant to heat, chemicals, and even standard washing techniques. The formation process involves bacteria landing on surfaces, multiplying, and secreting a slimy glue that encases colonies, enabling them to survive in tough conditions.